Neutron Spectroscopy Evidence on the Dual Nature of Magnetic Excitations in a van der Waals Metallic Ferromagnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>Fe</mml:mi></mml:mrow><mml:mrow><mml:mn>2.72</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>GeTe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:mrow></mml:math>
Song Bao, Wei Wang, Yanyan Shangguan, Zhengwei Cai, Zhao-Yang Dong, Zhentao Huang, W. Si, Zhen Ma, Ryoichi Kajimoto, Kazuhiko Ikeuchi, Shin-ichiro Yano, Shun-Li Yu, Xiangang Wan, Jian‐Xin Li, Jinsheng Wen
Abstract
Neutron-scattering experiments reveal two types of spin excitations and an unusual temperature effect in a transition-metal ferromagnet---direct evidence for the coexistence of and interplay between localized and itinerant electrons.
Topics & Concepts
Condensed matter physicsFerromagnetismElectronPhysicsvan der Waals forceCurie temperatureAntiferromagnetismInelastic neutron scatteringSpin (aerodynamics)SpinsNeutronAtomic physicsNeutron scatteringQuantum mechanicsThermodynamicsMoleculeRare-earth and actinide compoundsIron-based superconductors researchTopological Materials and Phenomena