2024-03-29T06:24:32Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00019873
2022-12-14T04:38:20Z
1169:1170
Calculation of magnetic properties of metals by means of the magnetic-field-containing relativistic tight-binding approximation method
Higuchi, Masahiko
Hamal, Dipendra Bahadur
Higuchi, Katsuhiko
©2017 American Physical Society
Magnetic properties of metals are investigated through electronic structure calculations based on the recently proposed magnetic-field-containing relativistic tight-binding approximation (MFRTB) method [Phys. Rev. B 91, 075122 (2015)]. It is found that electronic energy bands for a metal immersed in a uniform magnetic field have a cluster structure in which multiple energy bands lie within a small energy width. Each cluster corresponds to an energy level that is derived on the basis of the semiclassical approximation. While the cluster is responsible for the de Haas-van Alphen (dHvA) oscillations, constituent energy bands of the cluster cause additional oscillation peaks of the magnetization that are not explained by the conventional Lifshitz-Kosevich formula. Also, the energy width of the cluster leads to the reduction of the amplitude of the dHvA oscillations, which can be observed as the pseudo Dingle temperature and/or the overestimation of the curvature of the Fermi surface.
Article
PHYSICAL REVIEW B. 95(19):195153 (2017)
AMER PHYSICAL SOC
2017-05-24
eng
journal article
VoR
http://hdl.handle.net/10091/00020634
https://soar-ir.repo.nii.ac.jp/records/19873
https://doi.org/10.1103/PhysRevB.95.195153
10.1103/PhysRevB.95.195153
2469-9950
AA11187113
PHYSICAL REVIEW B
95
19
195153
https://soar-ir.repo.nii.ac.jp/record/19873/files/PhysRevB.95.195153.pdf
application/pdf
1.2 MB
2018-05-24