Raman scattering from one and two magnons in magnetoelectric LiNiPO4

Rigitano, D.; Vaknin, D.; Barberis, G. E.; Granado, E.

doi:10.1103/PhysRevB.101.024417

Title: Raman scattering from one and two magnons in magnetoelectric ${LiNiPO}_{4}$

Abstract

Polarized Raman scattering in magnetoelectric LiNiPO₄ shows a sharp resonant peak at 37 cm^-1 in the magnetically ordered phase, originating from a one-magnon excitation of Ni²⁺ S = 1 localized moments at the zone center. Also, a broad component with maximum intensity at ~ 65 cm^-1 is observed and successfully modeled in terms of light scattering from two-magnon excitations within the framework of the Fleury-Loudon theory using five relevant exchange parameters, providing an independent experimental confirmation of their values previously obtained with inelastic neutron scattering data in this material. An additional peak at 58 cm^-1, already reported in previous works, shows no detectable Zeeman splitting for magnetic fields up to 6 T along the crystallographic a and c directions, excluding one-magnon scattering as a possible assignment for this peak. The possible nature of this excitation is discussed.

Authors:

Rigitano, D. ^[1];

^[2]; Barberis, G. E. ^[1];

^[1]

Univ. of Campinas (UNICAMP), Sao Paulo (Brazil)
Ames Lab., Ames, IA (United States)

Publication Date:: 2020-01-21

Research Org.:: Ames Lab., Ames, IA (United States)

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

OSTI Identifier:: 1596726

Report Number(s):: IS-J-10147
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US2103732

Grant/Contract Number:: 2017/10581-1; 2018/20142-8; 409504/2018-1; 308607/2018-0; AC02-07CH11358

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 101; Journal Issue: 2; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Rigitano, D., Vaknin, D., Barberis, G. E., and Granado, E. Raman scattering from one and two magnons in magnetoelectric LiNiPO4.  United States: N. p., 2020. 
Web.  doi:10.1103/PhysRevB.101.024417.

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                    Rigitano, D., Vaknin, D., Barberis, G. E., & Granado, E. Raman scattering from one and two magnons in magnetoelectric LiNiPO4.  United States.  https://doi.org/10.1103/PhysRevB.101.024417

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                    Rigitano, D., Vaknin, D., Barberis, G. E., and Granado, E. Tue .  
"Raman scattering from one and two magnons in magnetoelectric LiNiPO4".  United States.  https://doi.org/10.1103/PhysRevB.101.024417.  https://www.osti.gov/servlets/purl/1596726.

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@article{osti_1596726,

  title        = {Raman scattering from one and two magnons in magnetoelectric LiNiPO4},

  author       = {Rigitano, D. and Vaknin, D. and Barberis, G. E. and Granado, E.},

  abstractNote = {Polarized Raman scattering in magnetoelectric LiNiPO4 shows a sharp resonant peak at 37 cm-1 in the magnetically ordered phase, originating from a one-magnon excitation of Ni2+ S = 1 localized moments at the zone center. Also, a broad component with maximum intensity at ~ 65 cm-1 is observed and successfully modeled in terms of light scattering from two-magnon excitations within the framework of the Fleury-Loudon theory using five relevant exchange parameters, providing an independent experimental confirmation of their values previously obtained with inelastic neutron scattering data in this material. An additional peak at 58 cm-1, already reported in previous works, shows no detectable Zeeman splitting for magnetic fields up to 6 T along the crystallographic a and c directions, excluding one-magnon scattering as a possible assignment for this peak. The possible nature of this excitation is discussed.},

  doi          = {10.1103/PhysRevB.101.024417},

  journal      = {Physical Review B},

  number       = 2,

  volume       = 101,

  place        = {United States},

  year         = {2020},

  month        = {1}

}

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Works referenced in this record:

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Title: Raman scattering from one and two magnons in magnetoelectric LiNiPO 4

Abstract

Citation Formats

Antiferromagnetism in the magnetoelectric effect single crystal LiMnPO 4 journal, April 2009

Phonon calculation on olivine-like LiMPO4 (M = Ni, Co, Fe) and Raman scattering of the iron-containing compound journal, January 2005

Spin excitations of magnetoelectric LiNiPO 4 in multiple magnetic phases journal, July 2019

Raman scattering in a LiNiPO4 single crystal journal, March 2002

Magnetic properties of LiCoPO4 and LiNiPO4 journal, June 1966

Field-induced reentrant magnetoelectric phase in LiNiPO 4 journal, February 2017

Two-magnon Raman scattering in LiMnPO4 journal, March 2015

Structure of lithium nickel phosphate journal, May 1993

Magnetic susceptibility and phase transitions in LiNiPO 4 journal, June 2019

Tweaking the spin-wave dispersion and suppressing the incommensurate phase in LiNiPO 4 by iron substitution journal, May 2009

High-field magnetic phase transitions and spin excitations in magnetoelectric LiNiPO 4 journal, August 2011

Magnetic anisotropy in Li-phosphates and origin of magnetoelectricity in LiNiPO 4 journal, January 2010

Inelastic light scattering from correlated electrons journal, January 2007

Scattering of Light by One- and Two-Magnon Excitations journal, February 1968

Field-induced magnetic phases and electric polarization in LiNiPO 4 journal, March 2009

Antiferromagnetism in LiFePO4 journal, March 1967

Phospho-olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries journal, April 1997

Anomalous spin waves and the commensurate-incommensurate magnetic phase transition in LiNiPO 4 journal, March 2009

Weak ferromagnetism and an intermediate incommensurate antiferromagnetic phase in LiNiPO4 journal, July 2003

The possible observation of electronic Raman transitions in crystals journal, January 1963

Theory of Two-Magnon Raman Scattering in Iron Pnictides and Chalcogenides journal, February 2011

Field-induced magnetic phases and electric polarization in LiNiPO4 text, January 2009

Anomalous spin-waves and the commensurate-incommensurate magnetic phase transition in LiNiPO4 text, January 2009

Inelastic Light Scattering From Correlated Electrons text, January 2006

Title: Raman scattering from one and two magnons in magnetoelectric ${LiNiPO}_{4}$

Antiferromagnetism in the magnetoelectric effect single crystal ${LiMnPO}_{4}$
journal, April 2009

Phonon calculation on olivine-like LiMPO4 (M = Ni, Co, Fe) and Raman scattering of the iron-containing compound
journal, January 2005

Spin excitations of magnetoelectric $LiNiPO_{4}$ in multiple magnetic phases
journal, July 2019

Raman scattering in a LiNiPO4 single crystal
journal, March 2002

Magnetic properties of LiCoPO4 and LiNiPO4
journal, June 1966

Field-induced reentrant magnetoelectric phase in ${LiNiPO}_{4}$
journal, February 2017

Two-magnon Raman scattering in LiMnPO4
journal, March 2015

Structure of lithium nickel phosphate
journal, May 1993

Magnetic susceptibility and phase transitions in ${LiNiPO}_{4}$
journal, June 2019

Tweaking the spin-wave dispersion and suppressing the incommensurate phase in ${LiNiPO}_{4}$ by iron substitution
journal, May 2009

High-field magnetic phase transitions and spin excitations in magnetoelectric LiNiPO $_{4}$
journal, August 2011

Magnetic anisotropy in Li-phosphates and origin of magnetoelectricity in ${LiNiPO}_{4}$
journal, January 2010

Inelastic light scattering from correlated electrons
journal, January 2007

Scattering of Light by One- and Two-Magnon Excitations
journal, February 1968

Field-induced magnetic phases and electric polarization in ${LiNiPO}_{4}$
journal, March 2009

Antiferromagnetism in LiFePO4
journal, March 1967

Phospho-olivines as Positive-Electrode Materials for Rechargeable Lithium Batteries
journal, April 1997

Anomalous spin waves and the commensurate-incommensurate magnetic phase transition in ${LiNiPO}_{4}$
journal, March 2009

Weak ferromagnetism and an intermediate incommensurate antiferromagnetic phase in LiNiPO4
journal, July 2003

The possible observation of electronic Raman transitions in crystals
journal, January 1963

Theory of Two-Magnon Raman Scattering in Iron Pnictides and Chalcogenides
journal, February 2011

Field-induced magnetic phases and electric polarization in LiNiPO4
text, January 2009

Anomalous spin-waves and the commensurate-incommensurate magnetic phase transition in LiNiPO4
text, January 2009

Inelastic Light Scattering From Correlated Electrons
text, January 2006