Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr2Zr2O7

Wen, J. -J.; Koohpayeh, S. M.; Ross, K. A.; Trump, B. A.; McQueen, T. M.; Kimura, K.; Nakatsuji, S.; Qiu, Y.; Pajerowski, D. M.; Copley, J. R.  D.; Broholm, C. L.

doi:10.1103/PhysRevLett.118.107206

Title: Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in $\Pr_{2} {Zr}_{2} O_{7}$

Abstract

Inelastic neutron scattering reveals a broad continuum of excitations in Pr ₂ Zr ₂ O ₇ , the temperature and magnetic field dependence of which indicate a continuous distribution of quenched transverse fields ( Δ ) acting on the non-Kramers Pr ^{3 +} crystal field ground state doublets. Spin-ice correlations are apparent within 0.2 meV of the Zeeman energy. In a random phase approximation an excellent account of the data is provided and contains a transverse field distribution ρ ( Δ ) ∝ ( Δ ² + Γ ² ) ^{- 1} , where Γ = 0.27 ( 1 ) meV . Established during high temperature synthesis due to an underlying structural instability, it appears disorder in Pr ₂ Zr ₂ O ₇ actually induces a quantum spin liquid.

Authors:

Wen, J. -J. ^[1]; Koohpayeh, S. M. ^[2]; Ross, K. A. ^[3]; Trump, B. A. ^[4]; McQueen, T. M. ^[5]; Kimura, K. ^[6]; Nakatsuji, S. ^[7]; Qiu, Y. ^[8]; Pajerowski, D. M. ^[8]; Copley, J. R. D. ^[8]; Broholm, C. L. ^[9]

Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy; Stanford Univ., CA (United States). Dept. of Applied Physics; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Inst. for Materials and Energy Sciences
Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy
Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy; National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Chemistry
Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy and Dept. of Chemistry and Dept. of Materials Science and Engineering
Univ. of Tokyo (Japan). Inst. for Solid State Physics (ISSP); Osaka Univ. (Japan). Division of Materials Physics
Univ. of Tokyo (Japan). Inst. for Solid State Physics (ISSP); Japan Science and Technology Agency (JST), Saitama (Japan). CREST
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
Johns Hopkins Univ., Baltimore, MD (United States). Inst. for Quantum Matter and Dept. of Physics and Astronomy and Dept. of Materials Science and Engineering; National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research

Publication Date:: Wed Mar 08 00:00:00 EST 2017

Research Org.:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); Japan Science and Technology Agency; Japanese Society for the Promotion of Science

OSTI Identifier:: 1352645

Alternate Identifier(s):: OSTI ID: 1346272

Grant/Contract Number:: FG02-08ER46544; AC02-76SF00515; 16H02209; 15H05882; 15H05883; DMR-1508249; R2604

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 118; Journal Issue: 10; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Wen, J. -J., Koohpayeh, S. M., Ross, K. A., Trump, B. A., McQueen, T. M., Kimura, K., Nakatsuji, S., Qiu, Y., Pajerowski, D. M., Copley, J. R.  D., and Broholm, C. L. Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr2Zr2O7.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevLett.118.107206.

Copy to clipboard


                    Wen, J. -J., Koohpayeh, S. M., Ross, K. A., Trump, B. A., McQueen, T. M., Kimura, K., Nakatsuji, S., Qiu, Y., Pajerowski, D. M., Copley, J. R.  D., & Broholm, C. L. Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr2Zr2O7.  United States.  https://doi.org/10.1103/PhysRevLett.118.107206

Copy to clipboard


                    Wen, J. -J., Koohpayeh, S. M., Ross, K. A., Trump, B. A., McQueen, T. M., Kimura, K., Nakatsuji, S., Qiu, Y., Pajerowski, D. M., Copley, J. R.  D., and Broholm, C. L. Wed .  
"Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr2Zr2O7".  United States.  https://doi.org/10.1103/PhysRevLett.118.107206.  https://www.osti.gov/servlets/purl/1352645.

Copy to clipboard


                    
@article{osti_1352645,

  title        = {Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr2Zr2O7},

  author       = {Wen, J. -J. and Koohpayeh, S. M. and Ross, K. A. and Trump, B. A. and McQueen, T. M. and Kimura, K. and Nakatsuji, S. and Qiu, Y. and Pajerowski, D. M. and Copley, J. R.  D. and Broholm, C. L.},

  abstractNote = {Inelastic neutron scattering reveals a broad continuum of excitations in Pr 2 Zr 2 O 7 , the temperature and magnetic field dependence of which indicate a continuous distribution of quenched transverse fields ( Δ ) acting on the non-Kramers Pr 3 + crystal field ground state doublets. Spin-ice correlations are apparent within 0.2 meV of the Zeeman energy. In a random phase approximation an excellent account of the data is provided and contains a transverse field distribution ρ ( Δ ) ∝ ( Δ 2 + Γ 2 ) - 1 , where Γ = 0.27 ( 1 ) meV . Established during high temperature synthesis due to an underlying structural instability, it appears disorder in Pr 2 Zr 2 O 7 actually induces a quantum spin liquid.},

  doi          = {10.1103/PhysRevLett.118.107206},

  journal      = {Physical Review Letters},

  number       = 10,

  volume       = 118,

  place        = {United States},

  year         = {Wed Mar 08 00:00:00 EST 2017},

  month        = {Wed Mar 08 00:00:00 EST 2017}

}

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/PhysRevLett.118.107206

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 72 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

The Disk Chopper Spectrometer at NIST: a new instrument for quasielastic neutron scattering studies
journal, August 2003

Copley, J. R. D.; Cook, J. C.
Chemical Physics, Vol. 292, Issue 2-3
DOI: 10.1016/S0301-0104(03)00124-1

Spin liquid correlations, anisotropic exchange, and symmetry breaking in Tb $_{2}$ Ti $_{2}$ O $_{7}$
journal, November 2012

Petit, Sylvain; Bonville, Pierre; Robert, Julien
Physical Review B, Vol. 86, Issue 17
DOI: 10.1103/PhysRevB.86.174403

Field-Induced Order and Spin Waves in the Pyrochlore Antiferromagnet ${Tb}_{2} {Ti}_{2} O_{7}$
journal, May 2006

Rule, K. C.; Ruff, J. P. C.; Gaulin, B. D.
Physical Review Letters, Vol. 96, Issue 17
DOI: 10.1103/PhysRevLett.96.177201

Inhomogeneous Level Splitting in $\Pr_{2 - x} {Bi}_{x} {Ru}_{2} O_{7}$
journal, May 2005

van Duijn, J.; Kim, K. H.; Hur, N.
Physical Review Letters, Vol. 94, Issue 17
DOI: 10.1103/PhysRevLett.94.177201

Antiferroquadrupolar correlations in the quantum spin ice candidate $\Pr_{2} {Zr}_{2} O_{7}$
journal, October 2016

Petit, S.; Lhotel, E.; Guitteny, S.
Physical Review B, Vol. 94, Issue 16
DOI: 10.1103/PhysRevB.94.165153

A short history of SHELX
journal, December 2007

Sheldrick, George M.
Acta Crystallographica Section A Foundations of Crystallography, Vol. 64, Issue 1, p. 112-122
DOI: 10.1107/S0108767307043930

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

Quantum spin ice: a search for gapless quantum spin liquids in pyrochlore magnets
journal, May 2014

Gingras, M. J. P.; McClarty, P. A.
Reports on Progress in Physics, Vol. 77, Issue 5
DOI: 10.1088/0034-4885/77/5/056501

Systematic Structural Change in Selected Rare Earth Oxide Pyrochlores as Determined by Wide-Angle CBED and a Comparison with the Results of Atomistic Computer Simulation
journal, August 2000

Tabira, Yasunori; Withers, Ray L.; Minervini, Licia
Journal of Solid State Chemistry, Vol. 153, Issue 1
DOI: 10.1006/jssc.2000.8712

Tetragonal distortion yielding a two-singlet spin liquid in pyrochlore Tb $_{2}$ Ti $_{2}$ O $_{7}$
journal, November 2011

Bonville, Pierre; Mirebeau, Isabelle; Gukasov, Arsène
Physical Review B, Vol. 84, Issue 18
DOI: 10.1103/PhysRevB.84.184409

Quantum fluctuations in spin-ice-like Pr2Zr2O7
journal, June 2013

Kimura, K.; Nakatsuji, S.; Wen, J-J.
Nature Communications, Vol. 4, Issue 1
DOI: 10.1038/ncomms2914

Lack of evidence for a singlet crystal-field ground state in the magnetic pyrochlore Tb $_{2}$ Ti $_{2}$ O $_{7}$
journal, October 2011

Gaulin, B. D.; Gardner, J. S.; McClarty, P. A.
Physical Review B, Vol. 84, Issue 14
DOI: 10.1103/PhysRevB.84.140402

Quantum Excitations in Quantum Spin Ice
journal, October 2011

Ross, Kate A.; Savary, Lucile; Gaulin, Bruce D.
Physical Review X, Vol. 1, Issue 2
DOI: 10.1103/PhysRevX.1.021002

Introduction to the Theory of Thermal Neutron Scattering
book, May 2012

Squires, G. L.
DOI: 10.1017/CBO9781139107808

Thermodynamic and single-ion properties of Tb3+ within the collective paramagnetic-spin liquid state of the frustrated pyrochlore antiferromagnet Tb2Ti2O7
journal, September 2000

Gingras, M.; den Hertog, B.; Faucher, M.
Physical Review B, Vol. 62, Issue 10
DOI: 10.1103/PhysRevB.62.6496

The analytical calculation of absorption in multifaceted crystals
journal, November 1995

Clark, R. C.; Reid, J. S.
Acta Crystallographica Section A Foundations of Crystallography, Vol. 51, Issue 6
DOI: 10.1107/S0108767395007367

Synthesis, floating zone crystal growth and characterization of the quantum spin ice Pr2Zr2O7 pyrochlore
journal, September 2014

Koohpayeh, S. M.; Wen, J. -J.; Trump, B. A.
Journal of Crystal Growth, Vol. 402
DOI: 10.1016/j.jcrysgro.2014.06.037

Pressure and Field Induced Magnetic Order in the Spin Liquid ${T b}_{2} {T i}_{2} O_{7}$ as Studied by Single Crystal Neutron Diffraction
journal, October 2004

Mirebeau, I.; Goncharenko, I. N.; Dhalenne, G.
Physical Review Letters, Vol. 93, Issue 18
DOI: 10.1103/PhysRevLett.93.187204

Long-range order and spin-liquid states of polycrystalline Tb $_{2 + x}$ Ti $_{2 - x}$ O $_{7 + y}$
journal, February 2013

Taniguchi, T.; Kadowaki, H.; Takatsu, H.
Physical Review B, Vol. 87, Issue 6
DOI: 10.1103/PhysRevB.87.060408

Introduction to the Theory of Thermal Neutron Scattering
journal, December 1979

Bacon, G. E.
Physics Bulletin, Vol. 30, Issue 12
DOI: 10.1088/0031-9112/30/12/044

Inhomogeneous level splitting in Pr$_{2-x}$Bi$_x$Ru$_2$O$_7$
text, January 2004

van Duijn, J.; Kim, K. H.; Hur, N.
arXiv
DOI: 10.48550/arxiv.cond-mat/0410065

Field Induced Order and Spin Waves in the Pyrochlore Antiferromagnet Tb2Ti2O7
text, January 2006

Rule, K. C.; Ruff, J. P. C.; Gaulin, B. D.
arXiv
DOI: 10.48550/arxiv.cond-mat/0601715

Works referencing / citing this record:

Magnetization of Crystalline and Amorphous Phases of R2Ti2O7 and R2Zr2O7 (R = Gd, Dy, Tb)
journal, January 2020

Kuznetsov, A. V.; Churkin, O. A.; Popov, V. V.
Journal of Superconductivity and Novel Magnetism, Vol. 33, Issue 8
DOI: 10.1007/s10948-019-05388-y

Universal geometric frustration in pyrochlores
journal, July 2018

Trump, B. A.; Koohpayeh, S. M.; Livi, K. J. T.
Nature Communications, Vol. 9, Issue 1
DOI: 10.1038/s41467-018-05033-7

Role of defects in determining the magnetic ground state of ytterbium titanate
journal, February 2019

Bowman, D. F.; Cemal, E.; Lehner, T.
Nature Communications, Vol. 10, Issue 1
DOI: 10.1038/s41467-019-08598-z

Experimental signatures of emergent quantum electrodynamics in Pr2Hf2O7
journal, April 2018

Sibille, Romain; Gauthier, Nicolas; Yan, Han
Nature Physics, Vol. 14, Issue 7
DOI: 10.1038/s41567-018-0116-x

Tuning the interactions in the spin-ice materials ${Dy}_{2} {Ge}_{2 - x} {Si}_{x} O_{7}$ by silicon substitution
journal, August 2019

Stöter, T.; Antlauf, M.; Opherden, L.
Physical Review B, Vol. 100, Issue 5
DOI: 10.1103/physrevb.100.054403

Local entanglement and confinement transitions in the random transverse-field Ising model on the pyrochlore lattice
journal, October 2019

Pardini, Tom; Menon, Anirudha; Hau-Riege, Stefan P.
Physical Review B, Vol. 100, Issue 14
DOI: 10.1103/physrevb.100.144437

Crystal fields and magnetic structure of the Ising antiferromagnet ${Er}_{3} {Ga}_{5} O_{12}$
journal, November 2019

Cai, Y.; Wilson, M. N.; Beare, J.
Physical Review B, Vol. 100, Issue 18
DOI: 10.1103/physrevb.100.184415

Absence of spin-ice state in the disordered fluorite $D y_{2} Z r_{2} O_{7}$
journal, June 2019

Ramon, J. G. A.; Wang, C. W.; Ishida, L.
Physical Review B, Vol. 99, Issue 21
DOI: 10.1103/physrevb.99.214442

Neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels
journal, November 2019

Reig-i-Plessis, D.; Cote, A.; van Geldern, S.
Physical Review Materials, Vol. 3, Issue 11
DOI: 10.1103/physrevmaterials.3.114408

Topological thermal Hall effect of magnetic monopoles in the pyrochlore U(1) spin liquid
journal, January 2020

Zhang, Xiao-Tian; Gao, Yong Hao; Liu, Chunxiao
Physical Review Research, Vol. 2, Issue 1
DOI: 10.1103/physrevresearch.2.013066

Competing Spin Liquids and Hidden Spin-Nematic Order in Spin Ice with Frustrated Transverse Exchange
journal, December 2017

Taillefumier, Mathieu; Benton, Owen; Yan, Han
Physical Review X, Vol. 7, Issue 4
DOI: 10.1103/physrevx.7.041057

Role of defects in determining the magnetic ground state of ytterbium titanate.
text, January 2019

Bowman, Df; Cemal, E.; Lehner, T.
Apollo - University of Cambridge Repository
DOI: 10.17863/cam.37263

Disorder and Quantum spin ice
preprint, January 2017

Martin, N.; Bonville, P.; Lhotel, E.
arXiv
DOI: 10.48550/arxiv.1708.01845

A neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels
text, January 2019

Reig-i-Plessis, D.; Cote, A.; van Geldern, S.
arXiv
DOI: 10.48550/arxiv.1906.10767

Similar Records in DOE PAGES and OSTI.GOV collections:

Effective spin- $\frac{1}{2}$ scalar chiral order on kagome lattices in ${Nd}_{3} {Sb}_{3} {Mg}_{2} O_{14}$

Journal Article Scheie, A. ; Sanders, M. ; Krizan, J. ; ... - Physical Review B

We inmore »« less
Cited by 44
https://doi.org/10.1103/PhysRevB.93.180407

Full Text Available
Magnetic field induced softening of spin waves and hard-axis order in the Kondo-lattice ferromagnet ${CeAgSb}_{2}$

Journal Article Nikitin, S. E. ; Podlesnyak, A. ; Xu, J. ; ... - Physical Review B

A significant number of Kondo-lattice ferromagnets order perpendicular to the easy magnetization axis dictated by the crystalline electric field. The nature of this phenomenon has attracted considerable attention, but remains poorly understood. In the present paper we use inelastic neutron scattering supported by magnetization and specific heat measurements to study the spin dynamics in the hard-axis ferromagnet CeAgSb₂. In the zero-field state we observed two sharp magnon modes, which are associated with Ce ordering and extended up to ≈ 3 meV with a considerable spin gap of 0.6 meV. Application of a magnetic field perpendicular to the moment direction reducesmore »« less
https://doi.org/10.1103/PhysRevB.104.115169
Single-ion properties of the $S_{eff}$ = $\frac{1}{2}$ XY antiferromagnetic pyrochlores $Na A^{'} {Co}_{2} F_{7}$ ( $A^{'} = {Ca}^{2 +}, {Sr}^{2 +}$ )

Journal Article Ross, Kathryn A. ; Brown, J. M. ; Cava, R. J. ; ... - Physical Review B

The antiferromagnetic pyrochlore material NaCaCo₂F₇ is a thermal spin liquid over a broad temperature range (≈140 K down to T_F=2.4 K), in which magnetic correlations between Co²⁺ dipole moments explore a continuous manifold of antiferromagnetic XY states. The thermal spin liquid is interrupted by spin freezing at a temperature that is ~2% of the mean-field interaction strength, leading to short-range static XY clusters with distinctive relaxation dynamics. Here we report the low-energy inelastic neutron scattering response from the related compound NaSrCo₂F₇, confirming that it hosts the same static and dynamic spin correlations as NaCaCo₂F₇. We then present the single-ion levelsmore »« less
Cited by 39
https://doi.org/10.1103/PhysRevB.95.144414

Full Text Available
Unstable spin-ice order in the stuffed metallic pyrochlore Pr_2+xIr_2-xO_7-δ

Journal Article MacLaughlin, D. E. ; Bernal, O. O. ; Shu, Lei ; ... - Physical Review. B, Condensed Matter and Materials Physics

Specific heat, elastic neutron scattering, and muon spin rotation experiments have been carried out on a well-characterized sample of “stuffed” (Pr-rich) Pr_2+xIr_2-xO_7-δ. Elastic neutron scattering shows the onset of long-range spin-ice “2-in/2-out” magnetic order at 0.93 kelvin, with an ordered moment of 1.7(1) Bohr magnetons per Pr ion at low temperatures. Approximate lower bounds on the correlation length and correlation time in the ordered state are 170 angstroms and 0.7 nanosecond, respectively. Muon spin rotation experiments yield an upper bound 2.6(7) milliteslas on the local field B^4f_loc at the muon site, which is nearly two orders of magnitude smaller thanmore »« less
Cited by 19
https://doi.org/10.1103/PhysRevB.92.054432

Full Text Available
Antichiral spin order, its soft modes, and their hybridization with phonons in the topological semimetal Mn₃ Ge

Journal Article Chen, Y. ; Gaudet, J. ; Dasgupta, S. ; ... - Physical Review B

Here we repormore »« less
https://doi.org/10.1103/physrevb.102.054403

Full Text Available

Similar Records

Title: Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr 2 Zr 2 O 7

Abstract

Citation Formats

The Disk Chopper Spectrometer at NIST: a new instrument for quasielastic neutron scattering studies journal, August 2003

Spin liquid correlations, anisotropic exchange, and symmetry breaking in Tb 2 Ti 2 O 7 journal, November 2012

Field-Induced Order and Spin Waves in the Pyrochlore Antiferromagnet Tb 2 Ti 2 O 7 journal, May 2006

Inhomogeneous Level Splitting in Pr 2 − x Bi x Ru 2 O 7 journal, May 2005

Antiferroquadrupolar correlations in the quantum spin ice candidate Pr 2 Zr 2 O 7 journal, October 2016

A short history of SHELX journal, December 2007

Introduction to Frustrated Magnetism book, January 2011

Quantum spin ice: a search for gapless quantum spin liquids in pyrochlore magnets journal, May 2014

Systematic Structural Change in Selected Rare Earth Oxide Pyrochlores as Determined by Wide-Angle CBED and a Comparison with the Results of Atomistic Computer Simulation journal, August 2000

Tetragonal distortion yielding a two-singlet spin liquid in pyrochlore Tb 2 Ti 2 O 7 journal, November 2011

Quantum fluctuations in spin-ice-like Pr2Zr2O7 journal, June 2013

Lack of evidence for a singlet crystal-field ground state in the magnetic pyrochlore Tb 2 Ti 2 O 7 journal, October 2011

Quantum Excitations in Quantum Spin Ice journal, October 2011

Introduction to the Theory of Thermal Neutron Scattering book, May 2012

Thermodynamic and single-ion properties of Tb3+ within the collective paramagnetic-spin liquid state of the frustrated pyrochlore antiferromagnet Tb2Ti2O7 journal, September 2000

The analytical calculation of absorption in multifaceted crystals journal, November 1995

Synthesis, floating zone crystal growth and characterization of the quantum spin ice Pr2Zr2O7 pyrochlore journal, September 2014

Pressure and Field Induced Magnetic Order in the Spin Liquid T b 2 T i 2 O 7 as Studied by Single Crystal Neutron Diffraction journal, October 2004

Long-range order and spin-liquid states of polycrystalline Tb 2 + x Ti 2 − x O 7 + y journal, February 2013

Introduction to the Theory of Thermal Neutron Scattering journal, December 1979

Inhomogeneous level splitting in Pr$_{2-x}$Bi$_x$Ru$_2$O$_7$ text, January 2004

Field Induced Order and Spin Waves in the Pyrochlore Antiferromagnet Tb2Ti2O7 text, January 2006

Magnetization of Crystalline and Amorphous Phases of R2Ti2O7 and R2Zr2O7 (R = Gd, Dy, Tb) journal, January 2020

Universal geometric frustration in pyrochlores journal, July 2018

Role of defects in determining the magnetic ground state of ytterbium titanate journal, February 2019

Experimental signatures of emergent quantum electrodynamics in Pr2Hf2O7 journal, April 2018

Tuning the interactions in the spin-ice materials Dy 2 Ge 2 − x Si x O 7 by silicon substitution journal, August 2019

Local entanglement and confinement transitions in the random transverse-field Ising model on the pyrochlore lattice journal, October 2019

Crystal fields and magnetic structure of the Ising antiferromagnet Er 3 Ga 5 O 12 journal, November 2019

Absence of spin-ice state in the disordered fluorite D y 2 Z r 2 O 7 journal, June 2019

Neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels journal, November 2019

Topological thermal Hall effect of magnetic monopoles in the pyrochlore U(1) spin liquid journal, January 2020

Competing Spin Liquids and Hidden Spin-Nematic Order in Spin Ice with Frustrated Transverse Exchange journal, December 2017

Role of defects in determining the magnetic ground state of ytterbium titanate. text, January 2019

Disorder and Quantum spin ice preprint, January 2017

A neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels text, January 2019

Title: Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in $\Pr_{2} {Zr}_{2} O_{7}$

The Disk Chopper Spectrometer at NIST: a new instrument for quasielastic neutron scattering studies
journal, August 2003

Spin liquid correlations, anisotropic exchange, and symmetry breaking in Tb $_{2}$ Ti $_{2}$ O $_{7}$
journal, November 2012

Field-Induced Order and Spin Waves in the Pyrochlore Antiferromagnet ${Tb}_{2} {Ti}_{2} O_{7}$
journal, May 2006

Inhomogeneous Level Splitting in $\Pr_{2 - x} {Bi}_{x} {Ru}_{2} O_{7}$
journal, May 2005

Antiferroquadrupolar correlations in the quantum spin ice candidate $\Pr_{2} {Zr}_{2} O_{7}$
journal, October 2016

A short history of SHELX
journal, December 2007

Introduction to Frustrated Magnetism
book, January 2011

Quantum spin ice: a search for gapless quantum spin liquids in pyrochlore magnets
journal, May 2014

Systematic Structural Change in Selected Rare Earth Oxide Pyrochlores as Determined by Wide-Angle CBED and a Comparison with the Results of Atomistic Computer Simulation
journal, August 2000

Tetragonal distortion yielding a two-singlet spin liquid in pyrochlore Tb $_{2}$ Ti $_{2}$ O $_{7}$
journal, November 2011

Quantum fluctuations in spin-ice-like Pr2Zr2O7
journal, June 2013

Lack of evidence for a singlet crystal-field ground state in the magnetic pyrochlore Tb $_{2}$ Ti $_{2}$ O $_{7}$
journal, October 2011

Quantum Excitations in Quantum Spin Ice
journal, October 2011

Introduction to the Theory of Thermal Neutron Scattering
book, May 2012

Thermodynamic and single-ion properties of Tb3+ within the collective paramagnetic-spin liquid state of the frustrated pyrochlore antiferromagnet Tb2Ti2O7
journal, September 2000

The analytical calculation of absorption in multifaceted crystals
journal, November 1995

Synthesis, floating zone crystal growth and characterization of the quantum spin ice Pr2Zr2O7 pyrochlore
journal, September 2014

Pressure and Field Induced Magnetic Order in the Spin Liquid ${T b}_{2} {T i}_{2} O_{7}$ as Studied by Single Crystal Neutron Diffraction
journal, October 2004

Long-range order and spin-liquid states of polycrystalline Tb $_{2 + x}$ Ti $_{2 - x}$ O $_{7 + y}$
journal, February 2013

Introduction to the Theory of Thermal Neutron Scattering
journal, December 1979

Inhomogeneous level splitting in Pr$_{2-x}$Bi$_x$Ru$_2$O$_7$
text, January 2004

Field Induced Order and Spin Waves in the Pyrochlore Antiferromagnet Tb2Ti2O7
text, January 2006

Magnetization of Crystalline and Amorphous Phases of R2Ti2O7 and R2Zr2O7 (R = Gd, Dy, Tb)
journal, January 2020

Universal geometric frustration in pyrochlores
journal, July 2018

Role of defects in determining the magnetic ground state of ytterbium titanate
journal, February 2019

Experimental signatures of emergent quantum electrodynamics in Pr2Hf2O7
journal, April 2018

Tuning the interactions in the spin-ice materials ${Dy}_{2} {Ge}_{2 - x} {Si}_{x} O_{7}$ by silicon substitution
journal, August 2019

Local entanglement and confinement transitions in the random transverse-field Ising model on the pyrochlore lattice
journal, October 2019

Crystal fields and magnetic structure of the Ising antiferromagnet ${Er}_{3} {Ga}_{5} O_{12}$
journal, November 2019

Absence of spin-ice state in the disordered fluorite $D y_{2} Z r_{2} O_{7}$
journal, June 2019

Neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels
journal, November 2019

Topological thermal Hall effect of magnetic monopoles in the pyrochlore U(1) spin liquid
journal, January 2020

Competing Spin Liquids and Hidden Spin-Nematic Order in Spin Ice with Frustrated Transverse Exchange
journal, December 2017

Role of defects in determining the magnetic ground state of ytterbium titanate.
text, January 2019

Disorder and Quantum spin ice
preprint, January 2017

A neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels
text, January 2019