Calculations of Magnetic properties of metals through the magnetic-field-containing relativistic tight-binding approximation method
| Autor: | Katsuhiko Higuchi, Dipendra Bahadur Hamal, Masahiko Higuchi |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Condensed Matter - Materials Science Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Oscillation Semiclassical physics Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Fermi surface Electronic structure 01 natural sciences 010305 fluids & plasmas Magnetic field Magnetization Condensed Matter - Strongly Correlated Electrons Tight binding 0103 physical sciences Cluster (physics) Atomic physics 010306 general physics |
| DOI: | 10.48550/arxiv.1609.07194 |
| Popis: | 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) |
| Databáze: | OpenAIRE |
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