Lattice dynamics in the itinerant helical magnet MnSi

被引：12

作者：

Alekseev, P. A. ^{[1
]}

Clementyev, E. S. ^{[1
,2
]}

Heid, R. ^{[3
]}

Ivanov, A. S. ^{[4
]}

Lamago, D. ^{[3
,5
]}

Mignot, J. -M. ^{[5
]}

Petrova, A. E. ^{[6
]}

Stishov, S. M. ^{[6
]}

机构：

[1] Kurchatov Inst, Russian Res Ctr, ISSSPh, Moscow 123182, Russia

[2] RAS, LNS, Inst Nucl Res, Troitsk 142190, Moscow Region, Russia

[3] KIT, Inst Festkorperphys, D-76021 Karlsruhe, Germany

[4] Inst Laue Langevin, F-38042 Grenoble 9, France

[5] CEA Saclay, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France

[6] RAS, Inst High Pressure Phys, Troitsk 142190, Moscow Region, Russia

来源：

INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2010) | 2011年 / 273卷

关键词：

SPIN FLUCTUATIONS; FERROMAGNET MNSI; PHASE; HEAT;

D O I：

10.1088/1742-6596/273/1/012129

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The phonon dispersion relations in MnSi were measured using inelastic neutron scattering. At the same time, calculations of the phonon spectra of MnSi were carried out in the framework of density functional theory in the local density and the generalized gradient approximations. The calculations match most of the phonon modes in the frequency range up to 40 meV. The phonon density of states obtained on the basis of the phonon dispersion was used to estimate the lattice contribution to the specific heat of MnSi.

引用

页数：5

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