Novel excitations near quantum criticality in geometrically frustrated antiferromagnet CsFeCl3

doi:10.1126/sciadv.aaw5639

Title: Novel excitations near quantum criticality in geometrically frustrated antiferromagnet CsFeCl₃

Abstract

The investigation of materials that exhibit quantum phase transition provides valuable insights into fundamental problems in physics. We present neutron scattering under pressure in a triangular-lattice antiferromagnet that has a quantum disorder in the low-pressure phase and a noncollinear structure in the high-pressure phase. The neutron spectrum continuously evolves through critical pressure; a single mode in the disordered state becomes soft with the pressure and it splits into gapless and gapped modes in the ordered phase. Extended spin-wave theory reveals that the longitudinal and transverse fluctuations of spins are hybridized in the modes because of noncollinearity, and previously unidentified magnetic excitations are formed. We report a new hybridization of the phase and amplitude fluctuations of the order parameter near a quantum critical point in a spontaneously symmetry-broken state.

Authors:

^[1];

^[2]; Hagihala, Masato ^[3]; Kurita, Nobuyuki ^[4]; Tanaka, Hidekazu ^[4]; Itoh, Shinichi ^[5];

^[6];

^[7];

^[8];

^[8]

The Univ. of Tokyo, Chiba (Japan); ETH Zurich, Zurich (Switzerland)
Shizuoka Univ., Shizuoka (Japan)
The Univ. of Tokyo, Chiba (Japan); High Energy Accelerator Research Organization, Tsukuba (Japan)
Tokyo Inst. of Technology, Tokyo (Japan)
High Energy Accelerator Research Organization, Ibaraki (Japan)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
The Univ. of Tokyo, Chiba (Japan); RIKEN Center for Emergent Matter Science, Wako (Japan)
The Univ. of Tokyo, Chiba (Japan)

Publication Date:: 2019-10-18

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

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1571849

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Science Advances

Additional Journal Information:: Journal Volume: 5; Journal Issue: 10; Journal ID: ISSN 2375-2548

Publisher:: AAAS

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Hayashida, Shohei, Matsumoto, Masashige, Hagihala, Masato, Kurita, Nobuyuki, Tanaka, Hidekazu, Itoh, Shinichi, Hong, Tao, Soda, Minoru, Uwatoko, Yoshiya, and Masuda, Takatsugu. Novel excitations near quantum criticality in geometrically frustrated antiferromagnet CsFeCl3.  United States: N. p., 2019. 
        Web.  doi:10.1126/sciadv.aaw5639.

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                    Hayashida, Shohei, Matsumoto, Masashige, Hagihala, Masato, Kurita, Nobuyuki, Tanaka, Hidekazu, Itoh, Shinichi, Hong, Tao, Soda, Minoru, Uwatoko, Yoshiya, & Masuda, Takatsugu. Novel excitations near quantum criticality in geometrically frustrated antiferromagnet CsFeCl3.  United States.  doi:10.1126/sciadv.aaw5639.

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                    Hayashida, Shohei, Matsumoto, Masashige, Hagihala, Masato, Kurita, Nobuyuki, Tanaka, Hidekazu, Itoh, Shinichi, Hong, Tao, Soda, Minoru, Uwatoko, Yoshiya, and Masuda, Takatsugu. Fri .  
        "Novel excitations near quantum criticality in geometrically frustrated antiferromagnet CsFeCl3".  United States.  doi:10.1126/sciadv.aaw5639.  https://www.osti.gov/servlets/purl/1571849.

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@article{osti_1571849,

  title        = {Novel excitations near quantum criticality in geometrically frustrated antiferromagnet CsFeCl3},

  author       = {Hayashida, Shohei and Matsumoto, Masashige and Hagihala, Masato and Kurita, Nobuyuki and Tanaka, Hidekazu and Itoh, Shinichi and Hong, Tao and Soda, Minoru and Uwatoko, Yoshiya and Masuda, Takatsugu},

  abstractNote = {The investigation of materials that exhibit quantum phase transition provides valuable insights into fundamental problems in physics. We present neutron scattering under pressure in a triangular-lattice antiferromagnet that has a quantum disorder in the low-pressure phase and a noncollinear structure in the high-pressure phase. The neutron spectrum continuously evolves through critical pressure; a single mode in the disordered state becomes soft with the pressure and it splits into gapless and gapped modes in the ordered phase. Extended spin-wave theory reveals that the longitudinal and transverse fluctuations of spins are hybridized in the modes because of noncollinearity, and previously unidentified magnetic excitations are formed. We report a new hybridization of the phase and amplitude fluctuations of the order parameter near a quantum critical point in a spontaneously symmetry-broken state.},

  doi          = {10.1126/sciadv.aaw5639},

  journal      = {Science Advances},

  number       = 10,

  volume       = 5,

  place        = {United States},

  year         = {2019},

  month        = {10}

}

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DOI: 10.1126/sciadv.aaw5639

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Works referenced in this record:

Higgs amplitude mode in a two-dimensional quantum antiferromagnet near the quantum critical point
journal, July 2017

Hong, Tao; Matsumoto, Masashige; Qiu, Yiming
Nature Physics, Vol. 13, Issue 7
DOI: 10.1038/nphys4182

High Resolution Chopper Spectrometer (HRC) at J-PARC
journal, March 2011

Itoh, Shinichi; Yokoo, Tetsuya; Satoh, Setsuo
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 631, Issue 1
DOI: 10.1016/j.nima.2010.11.107

Electromagnon as a Probe of Higgs (Longitudinal) Mode in Collinear and Noncollinear Magnetically Ordered States
journal, August 2014

Matsumoto, Masashige
Journal of the Physical Society of Japan, Vol. 83, Issue 8
DOI: 10.7566/JPSJ.83.084704

Magnetism in orbitally unquenched chainar compounds. II. The ferromagnetic case: RbFe ${Cl}_{3}$
journal, June 1975

Eibschütz, M.; Lines, M. E.; Sherwood, R. C.
Physical Review B, Vol. 11, Issue 11
DOI: 10.1103/PhysRevB.11.4595

Kapellasite: A Kagome Quantum Spin Liquid with Competing Interactions
journal, July 2012

Fåk, B.; Kermarrec, E.; Messio, L.
Physical Review Letters, Vol. 109, Issue 3
DOI: 10.1103/PhysRevLett.109.037208

Magnetic-field- and pressure-induced quantum phase transition in ${CsFeCl}_{3}$ proved via magnetization measurements
journal, September 2016

Kurita, Nobuyuki; Tanaka, Hidekazu
Physical Review B, Vol. 94, Issue 10
DOI: 10.1103/PhysRevB.94.104409

Neutron-scattering investigations of the Kohn anomaly and of the phase and amplitude charge-density-wave excitations of the blue bronze $K_{0.3}$ ${MoO}_{3}$
journal, April 1991

Pouget, J. P.; Hennion, B.; Escribe-Filippini, C.
Physical Review B, Vol. 43, Issue 10
DOI: 10.1103/PhysRevB.43.8421

Progress in High Resolution Chopper Spectrometer, HRC
journal, January 2013

Itoh, Shinichi; Yokoo, Tetsuya; Kawana, Daichi
Journal of the Physical Society of Japan, Vol. 82, Issue Suppl.A
DOI: 10.7566/JPSJS.82SA.SA033

Giant anharmonic phonon scattering in PbTe
journal, June 2011

Delaire, O.; Ma, J.; Marty, K.
Nature Materials, Vol. 10, Issue 8, p. 614-619
DOI: 10.1038/nmat3035

Dominance of the Excitation Continuum in the Longitudinal Spectrum of Weakly Coupled Heisenberg $S = 1 / 2$ Chains
journal, October 2002

Zheludev, A.; Kakurai, K.; Masuda, T.
Physical Review Letters, Vol. 89, Issue 19
DOI: 10.1103/PhysRevLett.89.197205

Longitudinal magnetic excitation in KCuCl ₃ studied by Raman scattering under hydrostatic pressures
journal, December 2012

Kuroe, H.; Takami, N.; Niwa, N.
Journal of Physics: Conference Series, Vol. 400, Issue 3
DOI: 10.1088/1742-6596/400/3/032042

Data acquisition system for high resolution chopper spectrometer (HRC) at J-PARC
journal, October 2011

Yano, Shin-ichiro; Itoh, Shinichi; Satoh, Setsuo
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 654, Issue 1
DOI: 10.1016/j.nima.2011.06.042

Crystal-Field Excitations, Magnetic-Field-Induced Phase Transition and Neutron-Scattering Spectra in PrOs ₄ Sb ₁₂
journal, December 2004

Shiina, Ryousuke; Matsumoto, Masashige; Koga, Mikito
Journal of the Physical Society of Japan, Vol. 73, Issue 12
DOI: 10.1143/JPSJ.73.3453

Pressure-induced quantum phase transition in the quantum antiferromagnet ${CsFeCl}_{3}$
journal, April 2018

Hayashida, Shohei; Zaharko, Oksana; Kurita, Nobuyuki
Physical Review B, Vol. 97, Issue 14
DOI: 10.1103/PhysRevB.97.140405

Bond-operator representation of quantum spins: Mean-field theory of frustrated quantum Heisenberg antiferromagnets
journal, May 1990

Sachdev, Subir; Bhatt, R. N.
Physical Review B, Vol. 41, Issue 13
DOI: 10.1103/PhysRevB.41.9323

Magnetic properties and spin waves of bilayer magnets in a uniform field
journal, October 2001

Sommer, T.; Vojta, M.; Becker, K. W.
The European Physical Journal B, Vol. 23, Issue 3
DOI: 10.1007/s100510170052

Quantum Magnets under Pressure: Controlling Elementary Excitations in ${TlCuCl}_{3}$
journal, May 2008

Rüegg, Ch.; Normand, B.; Matsumoto, M.
Physical Review Letters, Vol. 100, Issue 20
DOI: 10.1103/PhysRevLett.100.205701

Structure of the magnetic excitations in the spin-1/2 triangular-lattice Heisenberg antiferromagnet Ba3CoSb2O9
journal, August 2017

Ito, Saya; Kurita, Nobuyuki; Tanaka, Hidekazu
Nature Communications, Vol. 8, Issue 1
DOI: 10.1038/s41467-017-00316-x

Magnon Dispersion in the Field-Induced Magnetically Ordered Phase of ${T l C u C l}_{3}$
journal, July 2002

Matsumoto, Masashige; Normand, B.; Rice, T. M.
Physical Review Letters, Vol. 89, Issue 7
DOI: 10.1103/PhysRevLett.89.077203

Theory of Magnetic Excitations and Electron Spin Resonance for Anisotropic Spin Dimer Systems
journal, July 2008

Matsumoto, Masashige; Shoji, Takayuki; Koga, Mikito
Journal of the Physical Society of Japan, Vol. 77, Issue 7
DOI: 10.1143/JPSJ.77.074712

Quantum Fluctuations and Magnetic Structures of CsCuCl ₃ in High Magnetic Field
journal, September 1993

Nikuni, Tetsuro; Shiba, Hiroyuki
Journal of the Physical Society of Japan, Vol. 62, Issue 9
DOI: 10.1143/JPSJ.62.3268

Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
journal, December 2016

Paddison, Joseph A. M.; Daum, Marcus; Dun, Zhiling
Nature Physics, Vol. 13, Issue 2
DOI: 10.1038/nphys3971

Dynamics of Multipoles and Neutron Scattering Spectra in Quadrupolar Ordering Phase of CeB ₆
journal, May 2003

Shiina, Ryousuke; Shiba, Hiroyuki; Thalmeier, Peter
Journal of the Physical Society of Japan, Vol. 72, Issue 5
DOI: 10.1143/JPSJ.72.1216

Pressure-Induced Quantum Phase Transition in the Spin-Liquid $T l C u {C l}_{3}$
journal, December 2004

Rüegg, Ch.; Furrer, A.; Sheptyakov, D.
Physical Review Letters, Vol. 93, Issue 25
DOI: 10.1103/PhysRevLett.93.257201

Spin waves in a triangular lattice antiferromagnet: Decays, spectrum renormalization, and singularities
journal, April 2009

Chernyshev, A. L.; Zhitomirsky, M. E.
Physical Review B, Vol. 79, Issue 14
DOI: 10.1103/PhysRevB.79.144416

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
DOI: 10.1038/nature11659

Dynamical structure factor of the triangular-lattice antiferromagnet
journal, September 2013

Mourigal, M.; Fuhrman, W. T.; Chernyshev, A. L.
Physical Review B, Vol. 88, Issue 9
DOI: 10.1103/PhysRevB.88.094407

Quantum and classical criticality in a dimerized quantum antiferromagnet
journal, April 2014

Merchant, P.; Normand, B.; Krämer, K. W.
Nature Physics, Vol. 10, Issue 5
DOI: 10.1038/nphys2902

Light-induced collective pseudospin precession resonating with Higgs mode in a superconductor
journal, July 2014

Matsunaga, R.; Tsuji, N.; Fujita, H.
Science, Vol. 345, Issue 6201
DOI: 10.1126/science.1254697

The ‘Higgs’ amplitude mode at the two-dimensional superfluid/Mott insulator transition
journal, July 2012

Endres, Manuel; Fukuhara, Takeshi; Pekker, David
Nature, Vol. 487, Issue 7408
DOI: 10.1038/nature11255

Longitudinal Spin-Wave Mode Near Quantum Critical Point Due to Uniaxial Anisotropy
journal, July 2007

Matsumoto, Masashige; Koga, Mikito
Journal of the Physical Society of Japan, Vol. 76, Issue 7
DOI: 10.1143/JPSJ.76.073709

Field- and pressure-induced magnetic quantum phase transitions in ${TlCuCl}_{3}$
journal, February 2004

Matsumoto, Masashige; Normand, B.; Rice, T. M.
Physical Review B, Vol. 69, Issue 5
DOI: 10.1103/PhysRevB.69.054423

Novel Longitudinal Mode in the Coupled Quantum Chain Compound ${KCuF}_{3}$
journal, July 2000

Lake, B.; Tennant, D. A.; Nagler, S. E.
Physical Review Letters, Vol. 85, Issue 4
DOI: 10.1103/PhysRevLett.85.832

Neutron Scattering Study of Magnetic Excitations in Pseudo-One-Dimensional Singlet Ground State Ferromagnets CsFeCl ₃ and RbFeCl ₃
journal, July 1980

Yoshizawa, Hideki; Kozukue, Wakae; Hirakawa, Kinshiro
Journal of the Physical Society of Japan, Vol. 49, Issue 1
DOI: 10.1143/JPSJ.49.144

Theory of Magnetism in FeCl ₂ ·2H ₂ O
journal, October 1967

Inomata, Kōichirō; Oguchi, Takehiko
Journal of the Physical Society of Japan, Vol. 23, Issue 4
DOI: 10.1143/JPSJ.23.765

Higgs mode and its decay in a two-dimensional antiferromagnet
journal, March 2017

Jain, A.; Krautloher, M.; Porras, J.
Nature Physics, Vol. 13, Issue 7
DOI: 10.1038/nphys4077

Works referencing / citing this record:

Frustrated quantum magnetism with Bose gases in triangular optical lattices at negative absolute temperatures
journal, March 2020

Yamamoto, Daisuke; Fukuhara, Takeshi; Danshita, Ippei
Communications Physics, Vol. 3, Issue 1
DOI: 10.1038/s42005-020-0323-5

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Title: Novel excitations near quantum criticality in geometrically frustrated antiferromagnet CsFeCl3

Abstract

Citation Formats

Higgs amplitude mode in a two-dimensional quantum antiferromagnet near the quantum critical point journal, July 2017

High Resolution Chopper Spectrometer (HRC) at J-PARC journal, March 2011

Electromagnon as a Probe of Higgs (Longitudinal) Mode in Collinear and Noncollinear Magnetically Ordered States journal, August 2014

Magnetism in orbitally unquenched chainar compounds. II. The ferromagnetic case: RbFe Cl 3 journal, June 1975

Kapellasite: A Kagome Quantum Spin Liquid with Competing Interactions journal, July 2012

Magnetic-field- and pressure-induced quantum phase transition in CsFeCl 3 proved via magnetization measurements journal, September 2016

Neutron-scattering investigations of the Kohn anomaly and of the phase and amplitude charge-density-wave excitations of the blue bronze K 0.3 MoO 3 journal, April 1991

Progress in High Resolution Chopper Spectrometer, HRC journal, January 2013

Giant anharmonic phonon scattering in PbTe journal, June 2011

Dominance of the Excitation Continuum in the Longitudinal Spectrum of Weakly Coupled Heisenberg S = 1 / 2 Chains journal, October 2002

Longitudinal magnetic excitation in KCuCl 3 studied by Raman scattering under hydrostatic pressures journal, December 2012

Data acquisition system for high resolution chopper spectrometer (HRC) at J-PARC journal, October 2011

Crystal-Field Excitations, Magnetic-Field-Induced Phase Transition and Neutron-Scattering Spectra in PrOs 4 Sb 12 journal, December 2004

Pressure-induced quantum phase transition in the quantum antiferromagnet CsFeCl 3 journal, April 2018

Bond-operator representation of quantum spins: Mean-field theory of frustrated quantum Heisenberg antiferromagnets journal, May 1990

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Quantum Magnets under Pressure: Controlling Elementary Excitations in TlCuCl 3 journal, May 2008

Structure of the magnetic excitations in the spin-1/2 triangular-lattice Heisenberg antiferromagnet Ba3CoSb2O9 journal, August 2017

Magnon Dispersion in the Field-Induced Magnetically Ordered Phase of T l C u C l 3 journal, July 2002

Theory of Magnetic Excitations and Electron Spin Resonance for Anisotropic Spin Dimer Systems journal, July 2008

Quantum Fluctuations and Magnetic Structures of CsCuCl 3 in High Magnetic Field journal, September 1993

Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4 journal, December 2016

Dynamics of Multipoles and Neutron Scattering Spectra in Quadrupolar Ordering Phase of CeB 6 journal, May 2003

Pressure-Induced Quantum Phase Transition in the Spin-Liquid T l C u C l 3 journal, December 2004

Spin waves in a triangular lattice antiferromagnet: Decays, spectrum renormalization, and singularities journal, April 2009

Fractionalized excitations in the spin-liquid state of a kagome-lattice antiferromagnet journal, December 2012

Dynamical structure factor of the triangular-lattice antiferromagnet journal, September 2013

Quantum and classical criticality in a dimerized quantum antiferromagnet journal, April 2014

Light-induced collective pseudospin precession resonating with Higgs mode in a superconductor journal, July 2014

The ‘Higgs’ amplitude mode at the two-dimensional superfluid/Mott insulator transition journal, July 2012

Longitudinal Spin-Wave Mode Near Quantum Critical Point Due to Uniaxial Anisotropy journal, July 2007

Field- and pressure-induced magnetic quantum phase transitions in TlCuCl 3 journal, February 2004

Novel Longitudinal Mode in the Coupled Quantum Chain Compound KCuF 3 journal, July 2000

Neutron Scattering Study of Magnetic Excitations in Pseudo-One-Dimensional Singlet Ground State Ferromagnets CsFeCl 3 and RbFeCl 3 journal, July 1980

Theory of Magnetism in FeCl 2 ·2H 2 O journal, October 1967

Higgs mode and its decay in a two-dimensional antiferromagnet journal, March 2017

Frustrated quantum magnetism with Bose gases in triangular optical lattices at negative absolute temperatures journal, March 2020

Title: Novel excitations near quantum criticality in geometrically frustrated antiferromagnet CsFeCl₃

Higgs amplitude mode in a two-dimensional quantum antiferromagnet near the quantum critical point
journal, July 2017

High Resolution Chopper Spectrometer (HRC) at J-PARC
journal, March 2011

Electromagnon as a Probe of Higgs (Longitudinal) Mode in Collinear and Noncollinear Magnetically Ordered States
journal, August 2014

Magnetism in orbitally unquenched chainar compounds. II. The ferromagnetic case: RbFe ${Cl}_{3}$
journal, June 1975

Kapellasite: A Kagome Quantum Spin Liquid with Competing Interactions
journal, July 2012

Magnetic-field- and pressure-induced quantum phase transition in ${CsFeCl}_{3}$ proved via magnetization measurements
journal, September 2016

Neutron-scattering investigations of the Kohn anomaly and of the phase and amplitude charge-density-wave excitations of the blue bronze $K_{0.3}$ ${MoO}_{3}$
journal, April 1991

Progress in High Resolution Chopper Spectrometer, HRC
journal, January 2013

Giant anharmonic phonon scattering in PbTe
journal, June 2011

Dominance of the Excitation Continuum in the Longitudinal Spectrum of Weakly Coupled Heisenberg $S = 1 / 2$ Chains
journal, October 2002

Longitudinal magnetic excitation in KCuCl ₃ studied by Raman scattering under hydrostatic pressures
journal, December 2012

Data acquisition system for high resolution chopper spectrometer (HRC) at J-PARC
journal, October 2011

Crystal-Field Excitations, Magnetic-Field-Induced Phase Transition and Neutron-Scattering Spectra in PrOs ₄ Sb ₁₂
journal, December 2004

Pressure-induced quantum phase transition in the quantum antiferromagnet ${CsFeCl}_{3}$
journal, April 2018

Bond-operator representation of quantum spins: Mean-field theory of frustrated quantum Heisenberg antiferromagnets
journal, May 1990

Magnetic properties and spin waves of bilayer magnets in a uniform field
journal, October 2001

Quantum Magnets under Pressure: Controlling Elementary Excitations in ${TlCuCl}_{3}$
journal, May 2008

Structure of the magnetic excitations in the spin-1/2 triangular-lattice Heisenberg antiferromagnet Ba3CoSb2O9
journal, August 2017

Magnon Dispersion in the Field-Induced Magnetically Ordered Phase of ${T l C u C l}_{3}$
journal, July 2002

Theory of Magnetic Excitations and Electron Spin Resonance for Anisotropic Spin Dimer Systems
journal, July 2008

Quantum Fluctuations and Magnetic Structures of CsCuCl ₃ in High Magnetic Field
journal, September 1993

Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
journal, December 2016

Dynamics of Multipoles and Neutron Scattering Spectra in Quadrupolar Ordering Phase of CeB ₆
journal, May 2003

Pressure-Induced Quantum Phase Transition in the Spin-Liquid $T l C u {C l}_{3}$
journal, December 2004

Spin waves in a triangular lattice antiferromagnet: Decays, spectrum renormalization, and singularities
journal, April 2009

Fractionalized excitations in the spin-liquid state of a kagome-lattice antiferromagnet
journal, December 2012

Dynamical structure factor of the triangular-lattice antiferromagnet
journal, September 2013

Quantum and classical criticality in a dimerized quantum antiferromagnet
journal, April 2014

Light-induced collective pseudospin precession resonating with Higgs mode in a superconductor
journal, July 2014

The ‘Higgs’ amplitude mode at the two-dimensional superfluid/Mott insulator transition
journal, July 2012

Longitudinal Spin-Wave Mode Near Quantum Critical Point Due to Uniaxial Anisotropy
journal, July 2007

Field- and pressure-induced magnetic quantum phase transitions in ${TlCuCl}_{3}$
journal, February 2004

Novel Longitudinal Mode in the Coupled Quantum Chain Compound ${KCuF}_{3}$
journal, July 2000

Neutron Scattering Study of Magnetic Excitations in Pseudo-One-Dimensional Singlet Ground State Ferromagnets CsFeCl ₃ and RbFeCl ₃
journal, July 1980

Theory of Magnetism in FeCl ₂ ·2H ₂ O
journal, October 1967

Higgs mode and its decay in a two-dimensional antiferromagnet
journal, March 2017

Frustrated quantum magnetism with Bose gases in triangular optical lattices at negative absolute temperatures
journal, March 2020