Ring-exchange interaction effects on magnons in the Dirac magnet CoTiO3

被引：3

作者：

Li, Yufei

Mai, Thuc T. ^{[1
]}

Karaki, M. ^{[1
]}

Jasper, E., V

Garrity, K. F. ^{[2
]}

Lyon, C. ^{[1
]}

Shaw, D. ^{[3
]}

Delazzer, T. ^{[4
]}

Biacchi, A. J. ^{[4
,5
]}

Dally, R. L. ^{[6
]}

Heligman, D. M.

Gdanski, J. ^{[1
]}

Adel, T. ^{[1
]}

Munoz, M. F. ^{[1
]}

Giovannone, A.

Pawbake, A. ^{[6
,7
]}

Faugeras, C. ^{[7
]}

Simpson, J. R. ^{[2
,8
]}

Ross, K. ^{[4
]}

Trivedi, N. ^{[1
]}

Lu, Y. M. ^{[1
]}

Walker, A. R. Hight ^{[2
]}

Aguilar, R. Valdes ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[2] Quantum Measurement Div, Phys Measurement Lab, NIST, Gaithersburg, MD 20899 USA

[3] NIST, Mat Measurement Sci Div, Mat Measurement Lab, Gaithersburg, MD 20899 USA

[4] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA

[5] NIST, Nanoscale Device Characterizat Div, Phys Measurement Lab, Gaithersburg, MD 20899 USA

[6] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[7] Lab Natl Champs Magnet Intenses, LNCMI EMFL, Grenoble, France

[8] Towson Univ, Dept Phys Astron & Geosci, Towson, MD 21252 USA

来源：

PHYSICAL REVIEW B | 2024年 / 109卷 / 18期

关键词：

HEMATITE ALPHA-FE2O3 SYSTEM; CRYSTAL-CHEMISTRY; ILMENITE METIO3; RESONANCE; PROPERTY;

D O I：

10.1103/PhysRevB.109.184436

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic interactions that determine magnetic order and magnon energies typically involve only two spins. While rare, multispin interactions can also appear in quantum magnets and be the driving force in the ground -state selection and in the nature of its excitations. By performing time -domain terahertz and magnetoRaman spectroscopy measurements combined with theoretical modeling, we determine the origin of the magnon excitation gap in Dirac antiferromagnet CoTiO 3 . By adding a ring -exchange interaction in a hexagonal plaquette of the honeycomb lattice to both an XXZ spin model and to a low -energy spin -orbital flavor wave model, a gap is generated in the magnon spectrum at the Brillouin zone center. With this addition, the flavor wave model reproduces a large swath of experimental results including terahertz, Raman, inelastic neutron scattering, and magnetization experiments.

引用

页数：8

共 46 条

[41] 3RD ORDER CORRECTIONS AND FINITE CONDUCTION-BAND EFFECTS ON THE INDIRECT EXCHANGE INTERACTION IN THE BLOEMBERGEN-ROWLAND APPROXIMATION
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[42] NUCLEON-NUCLEON INTERACTION AND MESON EXCHANGE CURRENT EFFECTS IN HE-3 2-BODY BREAKUP BY POLARIZED PHOTONS
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[44] Effects of finite-range exchange terms and deformation on the α-decay half-lives using the B3Y NN interaction
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[45] CONSTANTS OF C-13-C-13 SPIN-SPIN INTERACTION IN STRUCTURAL STUDIES .3. ADDITIVITY OF SUBSTITUTION EFFECTS ON VALUES OF DIRECT HYDROGEN-HYDROGEN CONSTANTS IN THE BENZOIC RING OF AROMATIC ESTERS AND SULFIDES
KRIVDIN, LB
SHCHERBAKOV, VV
ALIEV, IA
KALABIN, GA
ZHURNAL ORGANICHESKOI KHIMII, 1987, 23 (03): : 569 - 576
[46] Comparative study on effects of bridging and terminal ligands on magnetic exchange interaction in [(NH3)5Cr((μ-X)Cr(NH3)4L]n+ (X=O, OH; L=OH, OH2, NH3; n=4, 5):: density functional theory study
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