Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet

Hong, Tao; Qiu, Y.; Matsumoto, M.; Tennant, D. A.; Coester, K.; Schmidt, K. P.; Awwadi, F. F.; Turnbull, M. M.; Agrawal, H.; Chernyshev, A. L.

doi:10.1038/ncomms15148

Title: Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet

Abstract

The notion of a quasiparticle, such as a phonon, a roton, or a magnon, is used in modern condensed matter physics to describe an elementary collective excitation. The intrinsic zero-temperature magnon damping in quantum spin systems can be driven by the interaction of the one-magnon states and multi-magnon continuum. However, detailed experimental studies on this quantum many-body effect induced by an applied magnetic field are rare. Here we present a high-resolution neutron scattering study in high fields on an S=1/2 antiferromagnet C9H18N2CuBr4. Compared with the non-interacting linear spin-wave theory, our results demonstrate a variety of phenomena including field-induced renormalization of one-magnon dispersion, spontaneous magnon decay observed via intrinsic linewidth broadening, unusual non-Lorentzian two-peak structure in the excitation spectra, and a dramatic shift of spectral weight from one-magnon state to the two-magnon continuum.

Authors:

Hong, Tao ^[1]; Qiu, Y. ^[2]; Matsumoto, M. ^[3]; Tennant, D. A. ^[1]; Coester, K. ^[4]; Schmidt, K. P. ^[5]; Awwadi, F. F. ^[6]; Turnbull, M. M. ^[7]; Agrawal, H. ^[8]; Chernyshev, A. L. ^[9]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
Shizuoka Univ. (Japan). Dept. of Physics
Technische Univ. of Dortmund (Germany)
Univ. of Erlangen-Nuremberg, Erlangen (Germany)
Univ. of Jordan, Amman (Jordan). Dept. of Chemistry
Clark Univ., Worcester, MA (United States). Carlson School of Chemistry and Biochemistry
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Instrument and Source Division
Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy

Publication Date:: Fri May 05 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR); Univ. of California, Irvine, CA (United States)

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

OSTI Identifier:: 1355873

Alternate Identifier(s):: OSTI ID: 1784333

Grant/Contract Number:: AC05-00OR22725; FG02-04ER46174; DMR-1508249

Resource Type:: Accepted Manuscript

Journal Name:: Nature Communications

Additional Journal Information:: Journal Volume: 8; Journal ID: ISSN 2041-1723

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Hong, Tao, Qiu, Y., Matsumoto, M., Tennant, D. A., Coester, K., Schmidt, K. P., Awwadi, F. F., Turnbull, M. M., Agrawal, H., and Chernyshev, A. L. Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet.  United States: N. p., 2017. 
Web.  doi:10.1038/ncomms15148.

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                    Hong, Tao, Qiu, Y., Matsumoto, M., Tennant, D. A., Coester, K., Schmidt, K. P., Awwadi, F. F., Turnbull, M. M., Agrawal, H., & Chernyshev, A. L. Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet.  United States.  https://doi.org/10.1038/ncomms15148

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                    Hong, Tao, Qiu, Y., Matsumoto, M., Tennant, D. A., Coester, K., Schmidt, K. P., Awwadi, F. F., Turnbull, M. M., Agrawal, H., and Chernyshev, A. L. Fri .  
"Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet".  United States.  https://doi.org/10.1038/ncomms15148.  https://www.osti.gov/servlets/purl/1355873.

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@article{osti_1355873,

  title        = {Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet},

  author       = {Hong, Tao and Qiu, Y. and Matsumoto, M. and Tennant, D. A. and Coester, K. and Schmidt, K. P. and Awwadi, F. F. and Turnbull, M. M. and Agrawal, H. and Chernyshev, A. L.},

  abstractNote = {The notion of a quasiparticle, such as a phonon, a roton, or a magnon, is used in modern condensed matter physics to describe an elementary collective excitation. The intrinsic zero-temperature magnon damping in quantum spin systems can be driven by the interaction of the one-magnon states and multi-magnon continuum. However, detailed experimental studies on this quantum many-body effect induced by an applied magnetic field are rare. Here we present a high-resolution neutron scattering study in high fields on an S=1/2 antiferromagnet C9H18N2CuBr4. Compared with the non-interacting linear spin-wave theory, our results demonstrate a variety of phenomena including field-induced renormalization of one-magnon dispersion, spontaneous magnon decay observed via intrinsic linewidth broadening, unusual non-Lorentzian two-peak structure in the excitation spectra, and a dramatic shift of spectral weight from one-magnon state to the two-magnon continuum.},

  doi          = {10.1038/ncomms15148},

  journal      = {Nature Communications},

  number       = ,

  volume       = 8,

  place        = {United States},

  year         = {Fri May 05 00:00:00 EDT 2017},

  month        = {Fri May 05 00:00:00 EDT 2017}

}

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https://doi.org/10.1038/ncomms15148

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May halogen bonding interactions compete with Cu⋯Cl semi-coordinate bonds? Structural, magnetic and theoretical studies of two polymorphs of trans -bis(5-bromo-2-chloro pyridine)dichlorocopper( ii ) and trans -bis(2,5-dichloropyridine)dichlorocopper( ii ) journal, January 2018

Magnetic excitations in the ground state of Yb 2 Ti 2 O 7 journal, December 2017

Higgs Mode of Planar Coupled Spin Ladders and its Observation in C 9 H 18 N 2 CuBr 4 journal, March 2019

Amplitude modes in three-dimensional spin dimers away from quantum critical point journal, November 2019

Static and Dynamical Properties of the Spin- $1 / 2$ Equilateral Triangular-Lattice Antiferromagnet ${Ba}_{3} {CoSb}_{2} O_{9}$
journal, February 2016

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

Dynamics of Composite Haldane Spin Chains in $IPA − {CuCl}_{3}$
journal, February 2006

Spontaneous decays of magneto-elastic excitations in non-collinear antiferromagnet (Y,Lu)MnO3
journal, October 2016

Decay of quasiparticles in quantum spin liquids
journal, March 2006

Instability of Antiferromagnetic Magnons in Strong Fields
journal, May 1999

Instability of magnons in two-dimensional antiferromagnets at high magnetic fields
journal, March 2010

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

Magnetic ordering induced by interladder coupling in the spin- $\frac{1}{2}$ Heisenberg two-leg ladder antiferromagnet $C_{9}$ $H_{18}$ $N_{2}$ ${CuBr}_{4}$
journal, May 2014

Magnon Decay in Gapped Quantum Spin Systems
journal, March 2006

MACS—a new high intensity cold neutron spectrometer at NIST
journal, January 2008

Numerical evidence for unstable magnons at high fields in the Heisenberg antiferromagnet on the square lattice
journal, November 2008

Dynamical properties of an antiferromagnet near the quantum critical point: Application to ${LaCuO}_{2.5}$
journal, October 1997

Magnon Breakdown in a Two Dimensional Triangular Lattice Heisenberg Antiferromagnet of Multiferroic ${LuMnO}_{3}$
journal, December 2013

Strong Rail Spin ¹ / ₂ Antiferromagnetic Ladder Systems: (Dimethylammonium)(3,5-Dimethylpyridinium)CuX ₄ , X = Cl, Br
journal, October 2008

Longitudinal modes in quasi-one-dimensional antiferromagnets
journal, October 1992

Roton-roton interactions and excitations in superfluid helium at large wavevectors
journal, February 1977

Neutron scattering study of a quasi-two-dimensional spin- $\frac{1}{2}$ dimer system: Piperazinium hexachlorodicuprate under hydrostatic pressure
journal, November 2010

Dynamical structure factor of quasi-two-dimensional antiferromagnet in high fields
journal, May 2012

Effect of pressure on the quantum spin ladder material ${IPA-CuCl}_{3}$
journal, December 2008

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

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

Structure and excitations of liquid helium
journal, September 1973

Quasiparticle-continuum level repulsion in a quantum magnet
journal, November 2015

Quasiparticle breakdown in a quantum spin liquid
journal, March 2006

Quantum Heisenberg antiferromagnets in a uniform magnetic field: Nonanalytic magnetic field dependence of the magnon spectrum
journal, July 2008

Effect of pressure on the quantum spin ladder material IPA-CuCl3
text, January 2008

Instability of Magnons in Two-dimensional Antiferromagnet at High Magnetic Fields
text, January 2010

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

Spontaneous decays of magneto-elastic excitations in noncollinear antiferromagnet (Y,Lu)MnO3
text, January 2016

Quasiparticle breakdown in a quantum spin liquid
text, January 2005

Magnon decay in gapped quantum spin systems
text, January 2005

Instability of antiferromagnetic magnons in strong fields
text, January 1998

A Novel Longitudinal Mode in the Coupled Quantum Chain Compound KCuF3
text, January 1999

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

Strong Rail Spin ¹ / ₂ Antiferromagnetic Ladder Systems: (Dimethylammonium)(3,5-Dimethylpyridinium)CuX ₄ , X = Cl, Br
journal, October 2008

Exact diagonalization study of the antiferromagnetic spin- $\frac{1}{2}$ Heisenberg model on the square lattice in a magnetic field
journal, May 2009

Field-induced decay dynamics in square-lattice antiferromagnets
journal, October 2010

Spin Phonon Coupling in Hexagonal Multiferroic $Y {MnO}_{3}$
journal, December 2007

Quantum Magnets under Pressure: Controlling Elementary Excitations in TlCuCl3
text, January 2008

Quantum Heisenberg antiferromagnets in a uniform magnetic field: nonanalytic magnetic field dependence of the magnon spectrum
text, January 2008

Numerical evidence for unstable magnons at high fields in the Heisenberg antiferromagnet on the square lattice
text, January 2008

Dynamical structure factor of quasi-2D antiferromagnet in high fields
text, January 2012

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

Decay of quasiparticles in quantum spin liquids
text, January 2006

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

Neutron Instruments for Research in Coordination Chemistry: Neutron Instruments for Research in Coordination Chemistry
journal, January 2019

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

Avoided quasiparticle decay from strong quantum interactions
journal, May 2019

May halogen bonding interactions compete with Cu⋯Cl semi-coordinate bonds? Structural, magnetic and theoretical studies of two polymorphs of trans -bis(5-bromo-2-chloro pyridine)dichlorocopper( ii ) and trans -bis(2,5-dichloropyridine)dichlorocopper( ii )
journal, January 2018

Magnetic excitations in the ground state of ${Yb}_{2} {Ti}_{2} O_{7}$
journal, December 2017

Higgs Mode of Planar Coupled Spin Ladders and its Observation in $C_{9} H_{18} N_{2} {CuBr}_{4}$
journal, March 2019

Amplitude modes in three-dimensional spin dimers away from quantum critical point
journal, November 2019