Fractional excitations in the square-lattice quantum antiferromagnet
Abstract
Quantum magnets have occupied the fertile ground between many-body theory and low-temperature experiments on real materials since the early days of quantum mechanics. However, our understanding of even deceptively simple systems of interacting spins-1/2 is far from complete. The quantum square-lattice Heisenberg antiferromagnet (QSLHAF), for example, exhibits a striking anomaly of hitherto unknown origin in its magnetic excitation spectrum. This quantum effect manifests itself for excitations propagating with the specific wave vector (π, 0). Here, we use polarized neutron spectroscopy to fully characterize the magnetic fluctuations in the metal-organic compound CFTD, a known realization of the QSLHAF model. Our experiments reveal an isotropic excitation continuum at the anomaly, which we analyse theoretically using Gutzwiller-projected trial wavefunctions. The excitation continuum is accounted for by the existence of spatially-extended pairs of fractional S=1/2 quasiparticles, 2D analogues of 1D spinons. Away from the anomalous wave vector, these fractional excitations are bound and form conventional magnons. Lastly, our results establish the existence of fractional quasiparticles in the high-energy spectrum of a quasi-two-dimensional antiferromagnet, even in the absence of frustration.
- Authors:
-
- Ecole Polytechnique Federale de Lausanne (EPFL) (Switzerland)
- Ecole Polytechnique Federale de Lausanne (EPFL) (Switzerland); Institut Laue-Langevin (France); Johns Hopkins Univ., Baltimore, MD (United States)
- Technical Univ. of Denmark (DTU), Lyngby (Denmark); Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- Ecole Polytechnique Federale de Lausanne (EPFL) (Switzerland); Univ. of Edinburgh (United Kingdom)
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
- Rutherford Appleton Lab., Didcot (United Kingdom)
- Institut Laue-Langevin (France)
- Univ. College London, London (United Kingdom)
- ETH Zurich (Switzerland); Univ. of Zurich (Switzerland)
- Ecole Polytechnique Federale de Lausanne (EPFL) (Switzerland); RIKEN Centre for Emergent Matter Science (CEMS) (Japan)
- Publication Date:
- Research Org.:
- Johns Hopkins Univ., Baltimore, MD (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1347120
- Grant/Contract Number:
- FG02-08ER46544
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Physics
- Additional Journal Information:
- Journal Volume: 11; Journal Issue: 1; Journal ID: ISSN 1745-2473
- Publisher:
- Nature Publishing Group (NPG)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Dalla Piazza, Bastien, Mourigal, M., Christensen, N. B., Nilsen, G. J., Tregenna-Piggott, P., Perring, T. G., Enderle, M., McMorrow, D. F., Ivanov, D. A., and Ronnow, H. M. Fractional excitations in the square-lattice quantum antiferromagnet. United States: N. p., 2014.
Web. doi:10.1038/nphys3172.
Dalla Piazza, Bastien, Mourigal, M., Christensen, N. B., Nilsen, G. J., Tregenna-Piggott, P., Perring, T. G., Enderle, M., McMorrow, D. F., Ivanov, D. A., & Ronnow, H. M. Fractional excitations in the square-lattice quantum antiferromagnet. United States. https://doi.org/10.1038/nphys3172
Dalla Piazza, Bastien, Mourigal, M., Christensen, N. B., Nilsen, G. J., Tregenna-Piggott, P., Perring, T. G., Enderle, M., McMorrow, D. F., Ivanov, D. A., and Ronnow, H. M. Mon .
"Fractional excitations in the square-lattice quantum antiferromagnet". United States. https://doi.org/10.1038/nphys3172. https://www.osti.gov/servlets/purl/1347120.
@article{osti_1347120,
title = {Fractional excitations in the square-lattice quantum antiferromagnet},
author = {Dalla Piazza, Bastien and Mourigal, M. and Christensen, N. B. and Nilsen, G. J. and Tregenna-Piggott, P. and Perring, T. G. and Enderle, M. and McMorrow, D. F. and Ivanov, D. A. and Ronnow, H. M.},
abstractNote = {Quantum magnets have occupied the fertile ground between many-body theory and low-temperature experiments on real materials since the early days of quantum mechanics. However, our understanding of even deceptively simple systems of interacting spins-1/2 is far from complete. The quantum square-lattice Heisenberg antiferromagnet (QSLHAF), for example, exhibits a striking anomaly of hitherto unknown origin in its magnetic excitation spectrum. This quantum effect manifests itself for excitations propagating with the specific wave vector (π, 0). Here, we use polarized neutron spectroscopy to fully characterize the magnetic fluctuations in the metal-organic compound CFTD, a known realization of the QSLHAF model. Our experiments reveal an isotropic excitation continuum at the anomaly, which we analyse theoretically using Gutzwiller-projected trial wavefunctions. The excitation continuum is accounted for by the existence of spatially-extended pairs of fractional S=1/2 quasiparticles, 2D analogues of 1D spinons. Away from the anomalous wave vector, these fractional excitations are bound and form conventional magnons. Lastly, our results establish the existence of fractional quasiparticles in the high-energy spectrum of a quasi-two-dimensional antiferromagnet, even in the absence of frustration.},
doi = {10.1038/nphys3172},
journal = {Nature Physics},
number = 1,
volume = 11,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2014},
month = {Mon Dec 15 00:00:00 EST 2014}
}
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Works referenced in this record:
Nobel Lecture: Fractional quantization
journal, July 1999
- Laughlin, R. B.
- Reviews of Modern Physics, Vol. 71, Issue 4
Solitons in Polyacetylene
journal, June 1979
- Su, W. P.; Schrieffer, J. R.; Heeger, A. J.
- Physical Review Letters, Vol. 42, Issue 25
Quantum simulation of antiferromagnetic spin chains in an optical lattice
journal, April 2011
- Simon, Jonathan; Bakr, Waseem S.; Ma, Ruichao
- Nature, Vol. 472, Issue 7343
The resonating valence bond state and high-Tc superconductivity — A mean field theory
journal, September 1987
- Baskaran, G.; Zou, Z.; Anderson, P. W.
- Solid State Communications, Vol. 63, Issue 11
Zur Theorie der Metalle: I. Eigenwerte und Eigenfunktionen der linearen Atomkette
journal, March 1931
- Bethe, H.
- Zeitschrift f�r Physik, Vol. 71, Issue 3-4
What is the spin of a spin wave?
journal, October 1981
- Faddeev, L. D.; Takhtajan, L. A.
- Physics Letters A, Vol. 85, Issue 6-7
Quantum spin dynamics of the antiferromagnetic linear chain in zero and nonzero magnetic field
journal, August 1981
- Müller, Gerhard; Thomas, Harry; Beck, Hans
- Physical Review B, Vol. 24, Issue 3
Measurement of the spin-excitation continuum in one-dimensional using neutron scattering
journal, November 1995
- Tennant, D. Alan; Cowley, Roger A.; Nagler, Stephen E.
- Physical Review B, Vol. 52, Issue 18
Fractional spinon excitations in the quantum Heisenberg antiferromagnetic chain
journal, June 2013
- Mourigal, Martin; Enderle, Mechthild; Klöpperpieper, Axel
- Nature Physics, Vol. 9, Issue 7
Experimental Realization of a 2D Fractional Quantum Spin Liquid
journal, February 2001
- Coldea, R.; Tennant, D. A.; Tsvelik, A. M.
- Physical Review Letters, Vol. 86, Issue 7
Fractionalized excitations in the spin-liquid state of a kagome-lattice antiferromagnet
journal, December 2012
- Han, Tian-Heng; Helton, Joel S.; Chu, Shaoyan
- Nature, Vol. 492, Issue 7429
Field-Induced Freezing of a Quantum Spin Liquid on the Kagome Lattice
journal, November 2011
- Jeong, M.; Bert, F.; Mendels, P.
- Physical Review Letters, Vol. 107, Issue 23
From Quantum Disorder to Magnetic Order in an Kagome Lattice: A Structural and Magnetic Study of Herbertsmithite at High Pressure
journal, May 2012
- Kozlenko, D. P.; Kusmartseva, A. F.; Lukin, E. V.
- Physical Review Letters, Vol. 108, Issue 18
The spin-½ Heisenberg antiferromagnet on a square lattice and its application to the cuprous oxides
journal, January 1991
- Manousakis, Efstratios
- Reviews of Modern Physics, Vol. 63, Issue 1
Spin-spin correlation functions for the square-lattice Heisenberg antiferromagnet at zero temperature
journal, August 1993
- Canali, C. M.; Wallin, Mats
- Physical Review B, Vol. 48, Issue 5
Monte Carlo simulations of the spin-(1/2 Heisenberg antiferromagnet on a square lattice
journal, April 1988
- Reger, J. D.; Young, A. P.
- Physical Review B, Vol. 37, Issue 10
Resonating – valence-bond theory of phase transitions and superconductivity in -based compounds
journal, June 1987
- Anderson, P. W.; Baskaran, G.; Zou, Z.
- Physical Review Letters, Vol. 58, Issue 26
Spin Dynamics in the Square-Lattice Antiferromagnet
journal, August 1988
- Auerbach, Assa; Arovas, Daniel P.
- Physical Review Letters, Vol. 61, Issue 5
Spin waves in the flux-phase description of the S =1/2 Heisenberg antiferromagnet
journal, June 1990
- Hsu, Theodore C.
- Physical Review B, Vol. 41, Issue 16
Nature of Spin Excitations in Two-Dimensional Mott Insulators: Undoped Cuprates and Other Materials
journal, February 2001
- Ho, Chang-Ming; Muthukumar, V. N.; Ogata, Masao
- Physical Review Letters, Vol. 86, Issue 8
Dual order parameter for the nodal liquid
journal, July 1999
- Balents, Leon; Fisher, Matthew P. A.; Nayak, Chetan
- Physical Review B, Vol. 60, Issue 3
Néel order, quantum spin liquids, and quantum criticality in two dimensions
journal, February 2006
- Ghaemi, Pouyan; Senthil, T.
- Physical Review B, Vol. 73, Issue 5
Neutron scattering study of the two-dimensional spinS=1/2 square-lattice Heisenberg antiferromagnet Sr2CuO2Cl2
journal, December 1995
- Greven, M.; Birgeneau, R. J.; Endoh, Y.
- Zeitschrift f�r Physik B Condensed Matter, Vol. 96, Issue 4
High-energy continuum of magnetic excitations in the two-dimensional quantum antiferromagnet
journal, May 2014
- Plumb, K. W.; Savici, A. T.; Granroth, G. E.
- Physical Review B, Vol. 89, Issue 18
Spin Waves and Electronic Interactions in
journal, June 2001
- Coldea, R.; Hayden, S. M.; Aeppli, G.
- Physical Review Letters, Vol. 86, Issue 23
Anomalous High-Energy Spin Excitations in the High- Superconductor-Parent Antiferromagnet
journal, December 2010
- Headings, N. S.; Hayden, S. M.; Coldea, R.
- Physical Review Letters, Vol. 105, Issue 24
Neutron scattering study of
journal, June 2001
- Kim, Y. J.; Birgeneau, R. J.; Chou, F. C.
- Physical Review B, Vol. 64, Issue 2
Quantum Effects in a Weakly Frustrated Two-Dimensional Heisenberg Antiferromagnet in an Applied Magnetic Field
journal, May 2009
- Tsyrulin, N.; Pardini, T.; Singh, R. R. P.
- Physical Review Letters, Vol. 102, Issue 19
Two-dimensional square-lattice antiferromagnet
journal, April 2010
- Tsyrulin, N.; Xiao, F.; Schneidewind, A.
- Physical Review B, Vol. 81, Issue 13
Spin Dynamics of the 2D Spin Quantum Antiferromagnet Copper Deuteroformate Tetradeuterate (CFTD)
journal, June 2001
- Rønnow, H. M.; McMorrow, D. F.; Coldea, R.
- Physical Review Letters, Vol. 87, Issue 3
Quantum dynamics and entanglement of spins on a square lattice
journal, September 2007
- Christensen, N. B.; Ronnow, H. M.; McMorrow, D. F.
- Proceedings of the National Academy of Sciences, Vol. 104, Issue 39
Spin-wave excitation spectra and spectral weights in square lattice antiferromagnets
journal, December 1995
- Singh, Rajiv R. P.; Gelfand, Martin P.
- Physical Review B, Vol. 52, Issue 22
Series studies of the spin- Heisenberg antiferromagnet at : Magnon dispersion and structure factors
journal, May 2005
- Zheng, Weihong; Oitmaa, J.; Hamer, C. J.
- Physical Review B, Vol. 71, Issue 18
Quantum renormalization of high-energy excitations in the 2D Heisenberg model
journal, June 2000
- Syljuåsen, O. F.; Rønnow, H. M.
- Journal of Physics: Condensed Matter, Vol. 12, Issue 25
High-Energy Magnon Dispersion and Multimagnon Continuum in the Two-Dimensional Heisenberg Antiferromagnet
journal, January 2001
- Sandvik, Anders W.; Singh, Rajiv R. P.
- Physical Review Letters, Vol. 86, Issue 3
Exact diagonalization study of the antiferromagnetic spin- Heisenberg model on the square lattice in a magnetic field
journal, May 2009
- Lüscher, Andreas; Läuchli, Andreas M.
- Physical Review B, Vol. 79, Issue 19
Measurement of Magnetic Excitations in the Two-Dimensional Antiferromagnetic Insulator Using Resonant X-Ray Scattering: Evidence for Extended Interactions
journal, October 2010
- Guarise, M.; Dalla Piazza, B.; Moretti Sala, M.
- Physical Review Letters, Vol. 105, Issue 15
Unified one-band Hubbard model for magnetic and electronic spectra of the parent compounds of cuprate superconductors
journal, March 2012
- Dalla Piazza, B.; Mourigal, M.; Guarise, M.
- Physical Review B, Vol. 85, Issue 10
High-energy spin and charge excitations in electron-doped copper oxide superconductors
journal, April 2014
- Ishii, K.; Fujita, M.; Sasaki, T.
- Nature Communications, Vol. 5, Issue 1
Magnetic Excitations and Phase Separation in the Underdoped Superconductor Measured by Resonant Inelastic X-Ray Scattering
journal, February 2010
- Braicovich, L.; van den Brink, J.; Bisogni, V.
- Physical Review Letters, Vol. 104, Issue 7
Colloquium : Spontaneous magnon decays
journal, January 2013
- Zhitomirsky, M. E.; Chernyshev, A. L.
- Reviews of Modern Physics, Vol. 85, Issue 1
Confinement and Deconfinement of Spinons in Two Dimensions
journal, May 2013
- Tang, Ying; Sandvik, Anders W.
- Physical Review Letters, Vol. 110, Issue 21
Spinons and triplons in spatially anisotropic frustrated antiferromagnets
journal, October 2007
- Kohno, Masanori; Starykh, Oleg A.; Balents, Leon
- Nature Physics, Vol. 3, Issue 11
Two-Spinon and Four-Spinon Continuum in a Frustrated Ferromagnetic Spin- Chain
journal, June 2010
- Enderle, M.; Fåk, B.; Mikeska, H. -J.
- Physical Review Letters, Vol. 104, Issue 23
Superconductivity in correlated wave functions
journal, July 1988
- Gros, Claudius
- Physical Review B, Vol. 38, Issue 1
Physics of projected wavefunctions
journal, January 1989
- Gros, Claudius
- Annals of Physics, Vol. 189, Issue 1
Variational study of the neutron resonance mode in the cuprate superconductors
journal, June 2010
- Li, Tao; Yang, Fan
- Physical Review B, Vol. 81, Issue 21
Theory of Underdoped Cuprates
journal, January 1996
- Wen, Xiao-Gang; Lee, Patrick A.
- Physical Review Letters, Vol. 76, Issue 3
Density-wave states of nonzero angular momentum
journal, August 2000
- Nayak, Chetan
- Physical Review B, Vol. 62, Issue 8
Doping dependence of antiferromagnetism in Cu : A numerical study based on a resonating-valence-bond state
journal, December 1988
- Lee, T. K.; Feng, Shiping
- Physical Review B, Vol. 38, Issue 16
Ground-state correlations of quantum antiferromagnets: A Green-function Monte Carlo study
journal, March 1990
- Trivedi, Nandini; Ceperley, D. M.
- Physical Review B, Vol. 41, Issue 7
Spin-Wave Wave Function for Quantum Spin Models
journal, March 1997
- Franjic, F.; Sorella, S.
- Progress of Theoretical Physics, Vol. 97, Issue 3
High- superconductors: A variational theory of the superconducting state
journal, August 2004
- Paramekanti, Arun; Randeria, Mohit; Trivedi, Nandini
- Physical Review B, Vol. 70, Issue 5
Resonating-valence-bond structure of Gutzwiller-projected superconducting wave functions
journal, July 2006
- Ivanov, D. A.
- Physical Review B, Vol. 74, Issue 2
Spectrum of short-wavelength magnons in a two-dimensional quantum Heisenberg antiferromagnet on a square lattice: third-order expansion in 1/ S
journal, April 2010
- Syromyatnikov, A. V.
- Journal of Physics: Condensed Matter, Vol. 22, Issue 21
Observation of Spin-Charge Separation in One-Dimensional SrCu
journal, November 1996
- Kim, C.; Matsuura, A. Y.; Shen, Z. -X.
- Physical Review Letters, Vol. 77, Issue 19
Zur Theorie der Metalle: Erwiderung auf eine Arbeit von A. H. Wilson
journal, September 1933
- Peierls, R.
- Zeitschrift f�r Physik, Vol. 81, Issue 9-10
High-Energy Magnon Dispersion and Multimagnon Continuum in the Two-Dimensional Heisenberg Antiferromagnet
text, January 2001
- Sandvik, Anders W.; Singh, Rajiv R. P.
- The American Physical Society
Experimental Realization of a 2D Fractional Quantum Spin Liquid
text, January 2001
- Coldea, R.; Tennant, D. A.; Tsvelik, A. M.
- The American Physical Society
Nature of Spin Excitations in Two-Dimensional Mott Insulators: Undoped Cuprates and Other Materials
text, January 2001
- Anderson, P. W.; Ho, Chang-Ming; Muthukumar, V. N.
- The American Physical Society
The resonating valence bond state and high-Tc superconductivity — a mean field theory
journal, December 1993
- Baskaran, G.; Zou, Z.; Anderson, P. W.
- Solid State Communications, Vol. 88, Issue 11-12
Spinons and triplons in spatially anisotropic frustrated antiferromagnets
text, January 2007
- Kohno, Masanori; Starykh, Oleg A.; Balents, Leon
- arXiv
Quantum dynamics and entanglement of spins on a square lattice
text, January 2007
- Christensen, N. B.; Ronnow, H. M.; McMorrow, D. F.
- arXiv
Quantum effects in a weakly-frustrated S=1/2 two-dimensional Heisenberg antiferromagnet in an applied magnetic field
text, January 2009
- Tsyrulin, N.; Pardini, T.; Singh, R. R. P.
- arXiv
Variational study of the neutron resonance mode in the cuprate superconductors
text, January 2009
- Li, Tao; Yang, Fan
- arXiv
Quantum Simulation of Antiferromagnetic Spin Chains in an Optical Lattice
text, January 2011
- Simon, Jonathan; Bakr, Waseem S.; Ma, Ruichao
- arXiv
Confinement and Deconfinement of Spinons in Two Dimensions
text, January 2013
- Tang, Ying; Sandvik, Anders W.
- arXiv
High-Energy Continuum of Magnetic Excitations in the Two-Dimensional Quantum Antiferromagnet Sr2CuO2Cl2
text, January 2014
- Plumb, K. W.; Savici, A. T.; Granroth, G. E.
- arXiv
High-energy spin and charge excitations in electron-doped copper oxide superconductors
text, January 2014
- Ishii, K.; Fujita, M.; Sasaki, T.
- arXiv
High-energy magnon dispersion and multi-magnon continuum in the two-dimensional Heisenberg antiferromagnet
text, January 2000
- Sandvik, Anders W.; Singh, Rajiv R. P.
- arXiv
Nature of Spin Excitations in Two-dimensional Mott Insulators: Undoped Cuprates and Other Materials
text, January 2001
- Ho, Chang-Ming; Muthukumar, V. N.; Ogata, Masao
- arXiv
Further Series Studies of the Spin-1/2 Heisenberg Antiferromagnet at T=0: Magnon Dispersion and Structure Factors
text, January 2004
- Zheng, Weihong; Oitmaa, J.; Hamer, C. J.
- arXiv
Neel order, quantum spin liquids and quantum criticality in two dimensions
text, January 2005
- Ghaemi, Pouyan; Senthil, T.
- arXiv
Physics of projected wavefunctions
journal, January 1989
- Gros, Claudius
- Annals of Physics, Vol. 189, Issue 1
Neutron diffraction study of the antiferromagnetic phase of copper formate tetradeuterate
journal, June 1980
- Burger, N.; Fuess, H.; Burlet, P.
- Solid State Communications, Vol. 34, Issue 11
Fractionalized excitations in the spin-liquid state of a kagome-lattice antiferromagnet
journal, December 2012
- Han, Tian-Heng; Helton, Joel S.; Chu, Shaoyan
- Nature, Vol. 492, Issue 7429
Fractional spinon excitations in the quantum Heisenberg antiferromagnetic chain
journal, June 2013
- Mourigal, Martin; Enderle, Mechthild; Klöpperpieper, Axel
- Nature Physics, Vol. 9, Issue 7
Quantum dynamics and entanglement of spins on a square lattice
journal, September 2007
- Christensen, N. B.; Ronnow, H. M.; McMorrow, D. F.
- Proceedings of the National Academy of Sciences, Vol. 104, Issue 39
Spectrum of short-wavelength magnons in a two-dimensional quantum Heisenberg antiferromagnet on a square lattice: third-order expansion in 1/ S
journal, April 2010
- Syromyatnikov, A. V.
- Journal of Physics: Condensed Matter, Vol. 22, Issue 21
Variational calculations for the square-lattice quantum antiferromagnet
journal, December 1989
- Liu, Zhiping; Manousakis, Efstratios
- Physical Review B, Vol. 40, Issue 16
Third-order spin-wave theory for the Heisenberg antiferromagnet
journal, September 1992
- Hamer, C. J.; Arndt, Peter
- Physical Review B, Vol. 46, Issue 10
Spinons and triplons in spatially anisotropic frustrated antiferromagnets
text, January 2007
- Kohno, Masanori; Starykh, Oleg A.; Balents, Leon
- arXiv
Field-Induced Freezing of a Quantum Spin Liquid on the Kagome Lattice
text, January 2011
- Jeong, M.; Bert, F.; Mendels, P.
- arXiv
Quantum renormalization of high energy excitations in the 2D Heisenberg antiferromagnet
text, January 2000
- Syljuasen, Olav F.; Ronnow, Henrik M.
- arXiv
Nature of Spin Excitations in Two-dimensional Mott Insulators: Undoped Cuprates and Other Materials
text, January 2001
- Ho, Chang-Ming; Muthukumar, V. N.; Ogata, Masao
- arXiv
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- Zayed, M. E.; Rüegg, Ch.; Larrea J., J.
- Nature Physics, Vol. 13, Issue 10
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- Nature Physics, Vol. 13, Issue 12
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- Nature Communications, Vol. 9, Issue 1
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journal, April 2019
- Wen, Jinsheng; Yu, Shun-Li; Li, Shiyan
- npj Quantum Materials, Vol. 4, Issue 1
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journal, July 2018
- Yao, Weiliang; Li, Chenyuan; Wang, Lichen
- Nature Physics, Vol. 14, Issue 10
CAMEA—A novel multiplexing analyzer for neutron spectroscopy
journal, March 2016
- Groitl, Felix; Graf, Dieter; Birk, Jonas Okkels
- Review of Scientific Instruments, Vol. 87, Issue 3
Upgrade to the MAPS neutron time-of-flight chopper spectrometer
journal, March 2019
- Ewings, R. A.; Stewart, J. R.; Perring, T. G.
- Review of Scientific Instruments, Vol. 90, Issue 3
Quantum theory of spin waves for helical ground states in a hollandite lattice
journal, November 2018
- Maity, Atanu; Mandal, Saptarshi
- Journal of Physics: Condensed Matter, Vol. 30, Issue 48
Magnetic field tuning of quantum spin excitations in a weakly coupled Heisenberg spin chain as seen from NMR
journal, September 2019
- Ma, Long; Wang, Z.; Hu, L.
- Physical Review B, Vol. 100, Issue 12
Spin dynamics in the presence of competing ferromagnetic and antiferromagnetic correlations in
journal, August 2015
- Robert, J.; Lhotel, E.; Remenyi, G.
- Physical Review B, Vol. 92, Issue 6
Ferromagnetism and spin excitations in topological Hubbard models with a flat band
journal, January 2019
- Su, Xiao-Fei; Gu, Zhao-Long; Dong, Zhao-Yang
- Physical Review B, Vol. 99, Issue 1
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journal, February 2019
- Larsen, C. B.; Rømer, A. T.; Janas, S.
- Physical Review B, Vol. 99, Issue 5
Modern Physics of the Condensed State: Strong Correlations and Quantum Topology
journal, June 2019
- Irkhin, V. Yu.; Skryabin, Yu. N.
- Physics of Metals and Metallography, Vol. 120, Issue 6
The analytical description of a doped Mott insulator
journal, November 2019
- Liu, Yu-Liang
- International Journal of Modern Physics B, Vol. 33, Issue 29
Interplay of Spin and Spatial Anisotropy in Low-Dimensional Quantum Magnets with Spin 1/2
journal, December 2018
- Orendáčová, Alžbeta; Tarasenko, Róbert; Tkáč, Vladimír
- Crystals, Vol. 9, Issue 1
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text, January 2018
- Cliffe, Matt; Lee, Jeongjae; Paddison, Joe
- Apollo - University of Cambridge Repository
Projective symmetry group classification of chiral spin liquids
text, January 2015
- Bieri, Samuel; Lhuillier, Claire; Messio, Laura
- arXiv
Influence of apical oxygen on the extent of in-plane exchange interaction in cuprate superconductors
text, January 2016
- Peng, Y. Y.; Dellea, G.; Minola, M.
- arXiv
Quantum theory of spin waves for Helical ground states in Hollandite lattice
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- Maity, Atanu; Mandal, Saptarshi
- arXiv
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- Larsen, C. B.; Rømer, A. T.; Janas, S.
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text, January 2019
- Ferrari, Francesco; Becca, Federico; Carrasquilla, Juan
- arXiv
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journal, August 2018
- Kamiya, Y.; Ge, L.; Hong, Tao
- Nature Communications, Vol. 9, Issue 1
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- Zayed, Mohamed E.; Rüegg, Christian; Larrea, Julio
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- Ferrari, Francesco; Becca, Federico
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- Bohrdt, A.; Wang, Y.; Koepsell, J.
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- Favre, Virgile Yves; Tucker, Gregory S.; Ritter, Clemens
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- Scheie, A.; Laurell, Pontus; Samarakoon, A. M.
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