Spin gaps in the ordered states of La2LiXO6(X=Ru,Os) and their relation to the distortion of the cubic double perovskite structure in 4d3 and 5d3 magnets

Maharaj, D. D.; Sala, G.; Marjerrison, C. A.; Stone, M. B.; Greedan, J. E.; Gaulin, B. D.

doi:10.1103/PhysRevB.98.104434

Title: Spin gaps in the ordered states of ${La}_{2} Li X O_{6} (X = Ru, Os)$ and their relation to the distortion of the cubic double perovskite structure in $4 d^{3}$ and $5 d^{3}$ magnets

Abstract

Time-of-flight inelastic neutron scattering measurements have been carried out on polycrystalline samples of the 4d³ and 5d³ double pervoskite antiferromagnets La₂LiRuO₆ and La₂LiOsO₆. These reveal the development of an inelastic spin gap in La₂LiRuO₆ and La₂LiOsO₆ of ~1.8(8) and 6(1) meV, below their respective ordering temperatures TN, ~23.8 and 30 K. The bandwidths of the spin excitations are shown to be ~5.7(9)and12(1)meV, respectively, at low temperatures. Spin gaps are surprising in such magnets as the t_2g levels of Ru⁵⁺ or Os⁵⁺ are expected to be half-filled, resulting in an anticipated orbital singlet for both materials. We compare these results in monoclinic double perovskites La₂LiRuO₆ and La₂LiOsO₆ with those in cubic Ba₂YRuO₆ and Ba₂YOsO₆ as well as with those in other monoclinic La₂NaRuO₆,La₂NaOsO₆, and Sr₂ScOsO₆ and model the inelastic magnetic scattering with linear spin-wave theory using minimal anisotropic exchange interactions. We discuss the possible role of the distortion of the face-centered-cubic double perovskite structure on the spin gap formation and geometric frustration in these materials and show that T_N scales with the top of the spin-wave band in all members of these families that display long-range order.

Authors:

Maharaj, D. D. ^[1]; Sala, G. ^[2]; Marjerrison, C. A. ^[1]; Stone, M. B. ^[3]; Greedan, J. E. ^[1]; Gaulin, B. D. ^[4]

McMaster Univ., Hamilton, ON (Canada)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); McMaster Univ., Hamilton, ON (Canada)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
McMaster Univ., Hamilton, ON (Canada); Canadian Inst. for Advanced Research, Toronto, ON (Canada)

Publication Date:: Fri Sep 28 00:00:00 EDT 2018

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1493992

Alternate Identifier(s):: OSTI ID: 1474770

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 98; Journal Issue: 10; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Maharaj, D. D., Sala, G., Marjerrison, C. A., Stone, M. B., Greedan, J. E., and Gaulin, B. D. Spin gaps in the ordered states of La2LiXO6(X=Ru,Os) and their relation to the distortion of the cubic double perovskite structure in 4d3 and 5d3 magnets.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevB.98.104434.

Copy to clipboard


                    Maharaj, D. D., Sala, G., Marjerrison, C. A., Stone, M. B., Greedan, J. E., & Gaulin, B. D. Spin gaps in the ordered states of La2LiXO6(X=Ru,Os) and their relation to the distortion of the cubic double perovskite structure in 4d3 and 5d3 magnets.  United States.  https://doi.org/10.1103/PhysRevB.98.104434

Copy to clipboard


                    Maharaj, D. D., Sala, G., Marjerrison, C. A., Stone, M. B., Greedan, J. E., and Gaulin, B. D. Fri .  
"Spin gaps in the ordered states of La2LiXO6(X=Ru,Os) and their relation to the distortion of the cubic double perovskite structure in 4d3 and 5d3 magnets".  United States.  https://doi.org/10.1103/PhysRevB.98.104434.  https://www.osti.gov/servlets/purl/1493992.

Copy to clipboard


                    
@article{osti_1493992,

  title        = {Spin gaps in the ordered states of La2LiXO6(X=Ru,Os) and their relation to the distortion of the cubic double perovskite structure in 4d3 and 5d3 magnets},

  author       = {Maharaj, D. D. and Sala, G. and Marjerrison, C. A. and Stone, M. B. and Greedan, J. E. and Gaulin, B. D.},

  abstractNote = {Time-of-flight inelastic neutron scattering measurements have been carried out on polycrystalline samples of the 4d3 and 5d3 double pervoskite antiferromagnets La2LiRuO6 and La2LiOsO6. These reveal the development of an inelastic spin gap in La2LiRuO6 and La2LiOsO6 of ~1.8(8) and 6(1) meV, below their respective ordering temperatures TN, ~23.8 and 30 K. The bandwidths of the spin excitations are shown to be ~5.7(9)and12(1)meV, respectively, at low temperatures. Spin gaps are surprising in such magnets as the t2g levels of Ru5+ or Os5+ are expected to be half-filled, resulting in an anticipated orbital singlet for both materials. We compare these results in monoclinic double perovskites La2LiRuO6 and La2LiOsO6 with those in cubic Ba2YRuO6 and Ba2YOsO6 as well as with those in other monoclinic La2NaRuO6,La2NaOsO6, and Sr2ScOsO6 and model the inelastic magnetic scattering with linear spin-wave theory using minimal anisotropic exchange interactions. We discuss the possible role of the distortion of the face-centered-cubic double perovskite structure on the spin gap formation and geometric frustration in these materials and show that TN scales with the top of the spin-wave band in all members of these families that display long-range order.},

  doi          = {10.1103/PhysRevB.98.104434},

  journal      = {Physical Review B},

  number       = 10,

  volume       = 98,

  place        = {United States},

  year         = {Fri Sep 28 00:00:00 EDT 2018},

  month        = {Fri Sep 28 00:00:00 EDT 2018}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1103/PhysRevB.98.104434

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 7 works

Citation information provided by
Web of Science

Figures / Tables:

FIG. 1: The face-centred cubic (FCC) double perovskite structure exhibited by Ba₂YXO₆ (X = Ru, Os) and the lower symmetry structure of La₂LiXO₆ are shown in panels a) and c) respectively. In each structure the non-magnetic and magnetic B and B0 ions co-ordinate with six oxygen atoms, forming a latticemore »

All figures and tables (13 total)

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Radial integrals for the magnetic form factor of 5 d transition elements
journal, August 2011

Kobayashi, Kohjiro; Nagao, Tatsuya; Ito, Masahisa
Acta Crystallographica Section A Foundations of Crystallography, Vol. 67, Issue 5
DOI: 10.1107/S010876731102633X

Mantid—Data analysis and visualization package for neutron scattering and $μ$ SR experiments
journal, November 2014

Arnold, O.; Bilheux, J. C.; Borreguero, J. M.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 764
DOI: 10.1016/j.nima.2014.07.029

DAVE: A Comprehensive Software Suite for the Reduction, Visualization, and Analysis of Low Energy Neutron Spectroscopic Data
journal, November 2009

Azuah, Richard Tumanjong; Kneller, Larry R.; Qiu, Yiming
Journal of Research of the National Institute of Standards and Technology, Vol. 114, Issue 6
DOI: 10.6028/jres.114.025

Triplet and in-gap magnetic states in the ground state of the quantum frustrated fcc antiferromagnet Ba $_{2}$ YMoO $_{6}$
journal, September 2011

Carlo, J. P.; Clancy, J. P.; Aharen, T.
Physical Review B, Vol. 84, Issue 10
DOI: 10.1103/PhysRevB.84.100404

Correlated Quantum Phenomena in the Strong Spin-Orbit Regime
journal, March 2014

Witczak-Krempa, William; Chen, Gang; Kim, Yong Baek
Annual Review of Condensed Matter Physics, Vol. 5, Issue 1
DOI: 10.1146/annurev-conmatphys-020911-125138

Systematic analysis of spectroscopic characteristics of heavy transition metal ions with 4dN and 5dN (N=1…10) electronic configurations in a free state
journal, January 2014

Ma, C. -G.; Brik, M. G.
Journal of Luminescence, Vol. 145
DOI: 10.1016/j.jlumin.2013.07.075

SEQUOIA: A Newly Operating Chopper Spectrometer at the SNS
journal, November 2010

Granroth, G. E.; Kolesnikov, A. I.; Sherline, T. E.
Journal of Physics: Conference Series, Vol. 251
DOI: 10.1088/1742-6596/251/1/012058

Active role of nonmagnetic cations in magnetic interactions for double-perovskite $S r_{2} B Os O_{6} (B = Y, In, Sc)$
journal, April 2016

Kanungo, Sudipta; Yan, Binghai; Felser, Claudia
Physical Review B, Vol. 93, Issue 16
DOI: 10.1103/PhysRevB.93.161116

Exotic Magnetism on the Quasi-fcc Lattices of the $d^{3}$ Double Perovskites ${La}_{2} Na B^{'} O_{6}$ ( $B^{'} = Ru$ , Os)
journal, March 2014

Aczel, A. A.; Baker, P. J.; Bugaris, D. E.
Physical Review Letters, Vol. 112, Issue 11
DOI: 10.1103/PhysRevLett.112.117603

Magnetic order and electronic structure of the $5 d^{3}$ double perovskite ${Sr}_{2} {ScOsO}_{6}$
journal, March 2015

Taylor, A. E.; Morrow, R.; Singh, D. J.
Physical Review B, Vol. 91, Issue 10
DOI: 10.1103/PhysRevB.91.100406

Frustrated fcc antiferromagnet ${Ba}_{2} {YOsO}_{6}$ : Structural characterization, magnetic properties, and neutron scattering studies
journal, February 2015

Kermarrec, E.; Marjerrison, C. A.; Thompson, C. M.
Physical Review B, Vol. 91, Issue 7
DOI: 10.1103/PhysRevB.91.075133

B-cation arrangements in double perovskites
journal, January 1993

Anderson, M.; Greenwood, K.; Taylor, G.
Progress in Solid State Chemistry, Vol. 22, Issue 3
DOI: 10.1016/0079-6786(93)90004-B

Magnetically Frustrated Double Perovskites: Synthesis, Structural Properties, and Magnetic Order of Sr ₂ B OsO ₆ ( B = Y, In, Sc) : Magnetically Frustrated Double Perovskites Sr
journal, February 2015

Paul, Avijit Kumar; Sarapulova, Angelina; Adler, Peter
Zeitschrift für anorganische und allgemeine Chemie, Vol. 641, Issue 2
DOI: 10.1002/zaac.201400590

Frustration by competing interactions in the highly distorted double perovskites La $_{2}$ Na $B^{'}$ O $_{6}$ ( $B^{'} = Ru$ , Os)
journal, January 2013

Aczel, A. A.; Bugaris, D. E.; Li, L.
Physical Review B, Vol. 87, Issue 1
DOI: 10.1103/PhysRevB.87.014435

Kitaev materials beyond iridates: Order by quantum disorder and Weyl magnons in rare-earth double perovskites
journal, February 2017

Li, Fei-Ye; Li, Yao-Dong; Yu, Yue
Physical Review B, Vol. 95, Issue 8
DOI: 10.1103/PhysRevB.95.085132

Exotic phases induced by strong spin-orbit coupling in ordered double perovskites
journal, November 2010

Chen, Gang; Pereira, Rodrigo; Balents, Leon
Physical Review B, Vol. 82, Issue 17
DOI: 10.1103/PhysRevB.82.174440

Magnetic properties of the $S = \frac{3}{2}$ geometrically frustrated double perovskites ${La}_{2} {LiRuO}_{6}$ and ${Ba}_{2} {YRuO}_{6}$
journal, October 2009

Aharen, Tomoko; Greedan, John E.; Ning, Fanlong
Physical Review B, Vol. 80, Issue 13
DOI: 10.1103/PhysRevB.80.134423

Frustrated magnetism in the double perovskite $L a_{2} LiOs O_{6}$ : A comparison with $L a_{2} LiRu O_{6}$
journal, January 2016

Thompson, C. M.; Marjerrison, C. A.; Sharma, A. Z.
Physical Review B, Vol. 93, Issue 1
DOI: 10.1103/PhysRevB.93.014431

Long-range magnetic order in the 5 d ² double perovskite Ba ₂ CaOsO ₆ : comparison with spin-disordered Ba ₂ YReO ₆
journal, July 2014

Thompson, C. M.; Carlo, J. P.; Flacau, R.
Journal of Physics: Condensed Matter, Vol. 26, Issue 30
DOI: 10.1088/0953-8984/26/30/306003

Magnetic properties of the geometrically frustrated $S = \frac{1}{2}$ antiferromagnets, ${La}_{2} {LiMoO}_{6}$ and ${Ba}_{2} {YMoO}_{6}$ , with the B-site ordered double perovskite structure: Evidence for a collective spin-singlet ground state
journal, June 2010

Aharen, Tomoko; Greedan, John E.; Bridges, Craig A.
Physical Review B, Vol. 81, Issue 22
DOI: 10.1103/PhysRevB.81.224409

Spin-orbit coupling controlled ground state in ${Sr}_{2} {ScOsO}_{6}$
journal, June 2016

Taylor, A. E.; Morrow, R.; Fishman, R. S.
Physical Review B, Vol. 93, Issue 22
DOI: 10.1103/PhysRevB.93.220408

Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4
journal, March 2009

Kim, B. J.; Ohsumi, H.; Komesu, T.
Science, Vol. 323, Issue 5919
DOI: 10.1126/science.1167106

Introduction to Frustrated Magnetism
book, January 2011

Lacroix, Claudine; Mendels, Philippe; Mila, Frédéric
Springer Series in Solid-State Sciences
DOI: 10.1007/978-3-642-10589-0

${Ba}_{2} {YIrO}_{6}$ : A cubic double perovskite material with ${Ir}^{5 +}$ ions
journal, January 2016

Dey, T.; Maljuk, A.; Efremov, D. V.
Physical Review B, Vol. 93, Issue 1
DOI: 10.1103/PhysRevB.93.014434

Linear spin wave theory for single-Q incommensurate magnetic structures
journal, March 2015

Toth, S.; Lake, B.
Journal of Physics: Condensed Matter, Vol. 27, Issue 16
DOI: 10.1088/0953-8984/27/16/166002

Magnetic and Structural Studies of Sc Containing Ruthenate Double Perovskites A ₂ ScRuO ₆ ( A = Ba, Sr)
journal, July 2017

Kayser, Paula; Injac, Sean; Ranjbar, Ben
Inorganic Chemistry, Vol. 56, Issue 15
DOI: 10.1021/acs.inorgchem.7b00983

Structure and magnetic properties of the $S = 1$ geometrically frustrated double perovskites ${La}_{2} {LiReO}_{6}$ and ${Ba}_{2} {YReO}_{6}$
journal, February 2010

Aharen, Tomoko; Greedan, John E.; Bridges, Craig A.
Physical Review B, Vol. 81, Issue 6
DOI: 10.1103/PhysRevB.81.064436

Spin gap and the nature of the 4 $d^{3}$ magnetic ground state in the frustrated fcc antiferromagnet Ba $_{2}$ YRuO $_{6}$
journal, July 2013

Carlo, J. P.; Clancy, J. P.; Fritsch, K.
Physical Review B, Vol. 88, Issue 2
DOI: 10.1103/PhysRevB.88.024418

Spin-orbit coupling in $d^{2}$ ordered double perovskites
journal, September 2011

Chen, Gang; Balents, Leon
Physical Review B, Vol. 84, Issue 9
DOI: 10.1103/PhysRevB.84.094420

Correlated quantum phenomena in the strong spin-orbit regime
text, January 2013

Witczak-Krempa, William; Chen, Gang; Kim, Yong Baek
arXiv
DOI: 10.48550/arxiv.1305.2193

Linear spin wave theory for single-Q incommensurate magnetic structures
text, January 2014

Toth, S.; Lake, B.
arXiv
DOI: 10.48550/arxiv.1402.6069

Kitaev materials beyond iridates: order by quantum disorder and Weyl magnons in rare-earth double perovskites
text, January 2016

Li, Fei-Ye; Li, Yao-Dong; Yu, Yue
arXiv
DOI: 10.48550/arxiv.1607.05618

Works referencing / citing this record:

The complex non-collinear magnetic orderings in Ba ₂ YOsO ₆ : a new approach to tuning spin-lattice interactions and controlling magnetic orderings in frustrated complex oxides
journal, August 2019

Fang, Yue-Wen; Yang, Ruihan; Chen, Hanghui
Journal of Physics: Condensed Matter, Vol. 31, Issue 44
DOI: 10.1088/1361-648x/ab31e0

Octupolar order in d-orbital Mott insulators
text, January 2019

Paramekanti, Arun; Maharaj, Dalini D.; Gaulin, Bruce D.
arXiv
DOI: 10.48550/arxiv.1909.03089

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

Similar Records in DOE PAGES and OSTI.GOV collections:

Frustration by competing interactions in the highly distorted double perovskites La $_{2}$ Na $B^{'}$ O $_{6}$ ( $B^{'} = Ru$ , Os)

Journal Article Aczel, A. A. ; Bugaris, D. E. ; Li, L. ; ... - Physical Review. B, Condensed Matter and Materials Physics

The usual classical behavior of S = 3 / 2 , B -site ordered double perovskites generally results in simple, commensurate magnetic ground states. In contrast, combined magnetic susceptibility, heat capacity, and neutron powder diffraction measurements for the S = 3 / 2 systems La 2 Na B' O 6 ( B' = Ru , Os) reveal an incommensurate magnetic ground state for La 2 NaRuO 6 and a drastically suppressed ordered moment for La 2 NaOsO 6 . This behavior is attributed to the large monoclinic structural distortions of these double perovskites. The distortions have the effects of creatingmore »« less
https://doi.org/10.1103/PhysRevB.87.014435
Spin-orbit coupling, strong correlation, and insulator-metal transitions: The $J_{eff} = \frac{3}{2}$ ferromagnetic Dirac-Mott insulator ${Ba}_{2} {NaOsO}_{6}$

Journal Article Gangopadhyay, Shruba ; Pickett, Warren E. - Physical Review. B, Condensed Matter and Materials Physics

The double perovskite Ba₂NaOsO₆ (BNOO), an exotic example of a very high oxidation state (heptavalent) osmium d1 compound and also uncommon by being a ferromagnetic open d-shell (Mott) insulator without Jahn-Teller (JT) distortion, is modeled using a density functional theory based hybrid functional incorporating exact exchange for correlated electronic orbitals and including the large spin-orbit coupling (SOC). The experimentally observed narrow-gap ferromagnetic insulating ground state is obtained, but only when including spin-orbit coupling, making this a Dirac-Mott insulator. The calculated easy axis along [110] is in accord with experiment, providing additional support that this approach provides a realistic method formore »« less
Cited by 34
https://doi.org/10.1103/PhysRevB.91.045133

Full Text Available
Interplay of spin-orbit coupling and hybridization in ${Ca}_{3} {LiOsO}_{6}$ and ${Ca}_{3} {LiRuO}_{6}$

Journal Article Calder, Stuart A. ; Singh, David J. ; Garlea, Vasile O. ; ... - Physical Review B

Here, the electronic ground state of Ca₃LiOsO₆ was recently considered within an intermediate coupling regime that revealed J = 3/2 spin-orbit entangled magnetic moments. Through inelastic neutron scattering and density functional theory we investigate the magnetic interactions and probe how the magnetism is influenced by the change in hierarchy of interactions as we move from Ca₃LiOsO₆ (5d³) to Ca₃LiRuO₆ (4d³). An alteration of the spin gap and ordered local moment is observed, however the magnetic structure, Néel temperature, and exchange interactions are unaltered. To explain this behavior it is necessary to include both spin-orbit coupling and hybridization, indicating the importancemore »« less
Cited by 11
https://doi.org/10.1103/PhysRevB.96.184426

Full Text Available
Revisiting the Kitaev material candidacy of ${Ir}^{4 +}$ double perovskite iridates

Journal Article Aczel, Adam A. ; Clancy, James P. ; Chen, Qiang ; ... - Physical Review B

Quantum magnets with significant bond-directional Ising interactions, so-called Kitaev materials, have attracted tremendous attention recently in the search for exotic spin liquid states. Here we present a comprehensive set of measurements that enables us to investigate the crystal structures, Ir⁴⁺ single-ion properties, and magnetic ground states of the double perovskite iridates La₂BIrO₆ (B = Mg, Zn) and A₂CeIrO₆ (A = Ba, Sr) with a large nearest-neighbor distance >5 angstrom between Ir⁴⁺ ions. Our neutron powder diffraction data on Ba₂CeIrO₆ can be refined in the cubic space group Fmmore »« less
Cited by 20
https://doi.org/10.1103/PhysRevB.99.134417

Full Text Available
Spin-Orbit Coupling Controlled $J = 3 / 2$ Electronic Ground State in $5 d^{3}$ Oxides

Journal Article Taylor, A. E. ; Calder, S. ; Morrow, R. ; ... - Physical Review Letters

Spin-orbit entanglement in 5d-based transition metal oxides (TMOs) has been identified as a route to a host of unconventional physical states including quantum spin liquids, Weyl semimetals, and axion insulators. Yet despite intense interest, no clear rules have emerged for the treatment of spin-orbit coupling (SOC) in 5d TMOs outside of idealised LS or jj coupling paradigms. This is exemplified in 5d³ oxides in which an orbitally-quenched singlet ground state is anticipated, yet SOC is manifest in the observed magnetic properties. Here we solve this long-outstanding puzzle by revealing that the electronic ground state of Os5+ 5d³ ions is anmore »« less
Cited by 25
https://doi.org/10.1103/PhysRevLett.118.207202

Full Text Available

Similar Records

Title: Spin gaps in the ordered states of La 2 Li X O 6 ( X = Ru , Os ) and their relation to the distortion of the cubic double perovskite structure in 4 d3 and 5 d3 magnets

Abstract

Citation Formats

Figures / Tables:

Radial integrals for the magnetic form factor of 5 d transition elements journal, August 2011

Mantid—Data analysis and visualization package for neutron scattering and μ SR experiments journal, November 2014

DAVE: A Comprehensive Software Suite for the Reduction, Visualization, and Analysis of Low Energy Neutron Spectroscopic Data journal, November 2009

Triplet and in-gap magnetic states in the ground state of the quantum frustrated fcc antiferromagnet Ba 2 YMoO 6 journal, September 2011

Correlated Quantum Phenomena in the Strong Spin-Orbit Regime journal, March 2014

Systematic analysis of spectroscopic characteristics of heavy transition metal ions with 4dN and 5dN (N=1…10) electronic configurations in a free state journal, January 2014

SEQUOIA: A Newly Operating Chopper Spectrometer at the SNS journal, November 2010

Active role of nonmagnetic cations in magnetic interactions for double-perovskite S r 2 B Os O 6 ( B = Y , In , Sc ) journal, April 2016

Exotic Magnetism on the Quasi-fcc Lattices of the d 3 Double Perovskites La 2 Na B ′ O 6 ( B ′ = Ru , Os) journal, March 2014

Magnetic order and electronic structure of the 5 d 3 double perovskite Sr 2 ScOsO 6 journal, March 2015

Frustrated fcc antiferromagnet Ba 2 YOsO 6 : Structural characterization, magnetic properties, and neutron scattering studies journal, February 2015

B-cation arrangements in double perovskites journal, January 1993

Magnetically Frustrated Double Perovskites: Synthesis, Structural Properties, and Magnetic Order of Sr 2 B OsO 6 ( B = Y, In, Sc) : Magnetically Frustrated Double Perovskites Sr journal, February 2015

Frustration by competing interactions in the highly distorted double perovskites La 2 Na B ′ O 6 ( B ′ = Ru , Os) journal, January 2013

Kitaev materials beyond iridates: Order by quantum disorder and Weyl magnons in rare-earth double perovskites journal, February 2017

Exotic phases induced by strong spin-orbit coupling in ordered double perovskites journal, November 2010

Magnetic properties of the S = 3 2 geometrically frustrated double perovskites La 2 LiRuO 6 and Ba 2 YRuO 6 journal, October 2009

Frustrated magnetism in the double perovskite L a 2 LiOs O 6 : A comparison with L a 2 LiRu O 6 journal, January 2016

Long-range magnetic order in the 5 d 2 double perovskite Ba 2 CaOsO 6 : comparison with spin-disordered Ba 2 YReO 6 journal, July 2014

Magnetic properties of the geometrically frustrated S = 1 2 antiferromagnets, La 2 LiMoO 6 and Ba 2 YMoO 6 , with the B-site ordered double perovskite structure: Evidence for a collective spin-singlet ground state journal, June 2010

Spin-orbit coupling controlled ground state in Sr 2 ScOsO 6 journal, June 2016

Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4 journal, March 2009

Introduction to Frustrated Magnetism book, January 2011

Ba 2 YIrO 6 : A cubic double perovskite material with Ir 5 + ions journal, January 2016

Linear spin wave theory for single-Q incommensurate magnetic structures journal, March 2015

Magnetic and Structural Studies of Sc Containing Ruthenate Double Perovskites A 2 ScRuO 6 ( A = Ba, Sr) journal, July 2017

Structure and magnetic properties of the S = 1 geometrically frustrated double perovskites La 2 LiReO 6 and Ba 2 YReO 6 journal, February 2010

Spin gap and the nature of the 4 d 3 magnetic ground state in the frustrated fcc antiferromagnet Ba 2 YRuO 6 journal, July 2013

Spin-orbit coupling in d 2 ordered double perovskites journal, September 2011

Correlated quantum phenomena in the strong spin-orbit regime text, January 2013

Linear spin wave theory for single-Q incommensurate magnetic structures text, January 2014

Kitaev materials beyond iridates: order by quantum disorder and Weyl magnons in rare-earth double perovskites text, January 2016

The complex non-collinear magnetic orderings in Ba 2 YOsO 6 : a new approach to tuning spin-lattice interactions and controlling magnetic orderings in frustrated complex oxides journal, August 2019

Octupolar order in d-orbital Mott insulators text, January 2019

Title: Spin gaps in the ordered states of ${La}_{2} Li X O_{6} (X = Ru, Os)$ and their relation to the distortion of the cubic double perovskite structure in $4 d^{3}$ and $5 d^{3}$ magnets

Radial integrals for the magnetic form factor of 5 d transition elements
journal, August 2011

Mantid—Data analysis and visualization package for neutron scattering and $μ$ SR experiments
journal, November 2014

DAVE: A Comprehensive Software Suite for the Reduction, Visualization, and Analysis of Low Energy Neutron Spectroscopic Data
journal, November 2009

Triplet and in-gap magnetic states in the ground state of the quantum frustrated fcc antiferromagnet Ba $_{2}$ YMoO $_{6}$
journal, September 2011

Correlated Quantum Phenomena in the Strong Spin-Orbit Regime
journal, March 2014

Systematic analysis of spectroscopic characteristics of heavy transition metal ions with 4dN and 5dN (N=1…10) electronic configurations in a free state
journal, January 2014

SEQUOIA: A Newly Operating Chopper Spectrometer at the SNS
journal, November 2010

Active role of nonmagnetic cations in magnetic interactions for double-perovskite $S r_{2} B Os O_{6} (B = Y, In, Sc)$
journal, April 2016

Exotic Magnetism on the Quasi-fcc Lattices of the $d^{3}$ Double Perovskites ${La}_{2} Na B^{'} O_{6}$ ( $B^{'} = Ru$ , Os)
journal, March 2014

Magnetic order and electronic structure of the $5 d^{3}$ double perovskite ${Sr}_{2} {ScOsO}_{6}$
journal, March 2015

Frustrated fcc antiferromagnet ${Ba}_{2} {YOsO}_{6}$ : Structural characterization, magnetic properties, and neutron scattering studies
journal, February 2015

B-cation arrangements in double perovskites
journal, January 1993

Magnetically Frustrated Double Perovskites: Synthesis, Structural Properties, and Magnetic Order of Sr ₂ B OsO ₆ ( B = Y, In, Sc) : Magnetically Frustrated Double Perovskites Sr
journal, February 2015

Frustration by competing interactions in the highly distorted double perovskites La $_{2}$ Na $B^{'}$ O $_{6}$ ( $B^{'} = Ru$ , Os)
journal, January 2013

Kitaev materials beyond iridates: Order by quantum disorder and Weyl magnons in rare-earth double perovskites
journal, February 2017

Exotic phases induced by strong spin-orbit coupling in ordered double perovskites
journal, November 2010

Magnetic properties of the $S = \frac{3}{2}$ geometrically frustrated double perovskites ${La}_{2} {LiRuO}_{6}$ and ${Ba}_{2} {YRuO}_{6}$
journal, October 2009

Frustrated magnetism in the double perovskite $L a_{2} LiOs O_{6}$ : A comparison with $L a_{2} LiRu O_{6}$
journal, January 2016

Long-range magnetic order in the 5 d ² double perovskite Ba ₂ CaOsO ₆ : comparison with spin-disordered Ba ₂ YReO ₆
journal, July 2014

Magnetic properties of the geometrically frustrated $S = \frac{1}{2}$ antiferromagnets, ${La}_{2} {LiMoO}_{6}$ and ${Ba}_{2} {YMoO}_{6}$ , with the B-site ordered double perovskite structure: Evidence for a collective spin-singlet ground state
journal, June 2010

Spin-orbit coupling controlled ground state in ${Sr}_{2} {ScOsO}_{6}$
journal, June 2016

Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4
journal, March 2009

Introduction to Frustrated Magnetism
book, January 2011

${Ba}_{2} {YIrO}_{6}$ : A cubic double perovskite material with ${Ir}^{5 +}$ ions
journal, January 2016

Linear spin wave theory for single-Q incommensurate magnetic structures
journal, March 2015

Magnetic and Structural Studies of Sc Containing Ruthenate Double Perovskites A ₂ ScRuO ₆ ( A = Ba, Sr)
journal, July 2017

Structure and magnetic properties of the $S = 1$ geometrically frustrated double perovskites ${La}_{2} {LiReO}_{6}$ and ${Ba}_{2} {YReO}_{6}$
journal, February 2010

Spin gap and the nature of the 4 $d^{3}$ magnetic ground state in the frustrated fcc antiferromagnet Ba $_{2}$ YRuO $_{6}$
journal, July 2013

Spin-orbit coupling in $d^{2}$ ordered double perovskites
journal, September 2011

Correlated quantum phenomena in the strong spin-orbit regime
text, January 2013

Linear spin wave theory for single-Q incommensurate magnetic structures
text, January 2014

Kitaev materials beyond iridates: order by quantum disorder and Weyl magnons in rare-earth double perovskites
text, January 2016

The complex non-collinear magnetic orderings in Ba ₂ YOsO ₆ : a new approach to tuning spin-lattice interactions and controlling magnetic orderings in frustrated complex oxides
journal, August 2019

Octupolar order in d-orbital Mott insulators
text, January 2019