Chirality of magnetic excitations in ferromagnetic SrRuO3

被引：2
|
作者：
Jenni, K. [1 ]
Kunkemoeller, S. [1 ]
Schmidt, W. [2 ]
Steffens, P. [3 ]
Nugroho, A. A. [4 ]
Braden, M. [1 ]
机构：
[1] Univ Cologne, Phys Inst 2, Zulpicher Str 77, D-50937 Cologne, Germany
[2] Julich Ctr Neutron Sci ILL, Forschungszentrum Julich GmbH, F-38042 Grenoble, France
[3] Inst Laue Langevin, 71 Ave Martyrs, F-38000 Grenoble, France
[4] Inst Teknol Bandung, Fac Math & Nat Sci, Jalan Ganesha 10, Bandung 40132, Indonesia
来源：
PHYSICAL REVIEW B | 2022年 / 105卷 / 18期
关键词：
TRANSPORT-PROPERTIES; POLARIZATION;
D O I：
10.1103/PhysRevB.105.L180408
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ferromagnetic SrRuO3 was proposed as a candidate material to exhibit an inverted magnon chirality due to a strong impact of spin-orbit coupling and Weyl fermions. By polarized inelastic neutron scattering under magnetic fields we determine the chirality of the ferromagnetic zone-center excitation as a function of temperature. Well in the ferromagnetic phase the excitation is perfectly chiral with the usual (right-handed) sign and only when the spontaneous magnetization is almost completely suppressed the chirality of the zone center magnetic excitations is reduced but does not change sign.
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页数：6
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