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Energy quantization at the three-quarter Dirac point in a magnetic field
http://hdl.handle.net/2298/41528
http://hdl.handle.net/2298/41528b15247b2-e940-4bab-b4c1-c7f58df5a66d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
PhysRevB.99.045409.pdf (4.4 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-01-31 | |||||
| タイトル | ||||||
| タイトル | Energy quantization at the three-quarter Dirac point in a magnetic field | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
長谷川, 泰正
× 長谷川, 泰正× Kishigi, Keita |
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| 別言語の著者 |
長谷川, 泰正
× 長谷川, 泰正× 岸木, 敬太 |
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| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The quantization of the energy in a magnetic field (Landau quantization) at a three-quarter Dirac point is studied theoretically. The three-quarter Dirac point is realized in the system of massless Dirac fermions with the critically tilted Dirac cone in one direction, where a linear term disappears and a quadratic term α2q2x with a constant α2 plays an important role. The energy is obtained as En∝α352(nB)45, where n=1,2,3,⋯, by means of numerically solving the differential equation. The same result is obtained analytically by adopting an approximation. The result is consistent with the semiclassical quantization rule studied previously. The existence of the n=0 state is studied by introducing the energy gap due to the inversion-symmetry-breaking term, and it is obtained that the n=0 state exists in one of a pair of three-quarter Dirac points, depending on the direction of the magnetic field when the energy gap is finite. | |||||
| 書誌情報 |
Physical Review B 巻 99, 号 4, p. 045409-1-045409-10, 発行年 2019-01-08 |
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| ISSN | ||||||
| 収録物識別子 | 24699950 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 関連識別子 | 10.1103/PhysRevB.99.045409 | |||||
| 権利 | ||||||
| 権利情報 | ©2019 American Physical Society | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 形態 | ||||||
| 値 | 4390161 bytes | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 428 | |||||
| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| 資源タイプ | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 論文(Article) | |||||
| 資源タイプ・ローカル | ||||||
| 値 | 雑誌掲載論文 | |||||
| 資源タイプ・NII | ||||||
| 値 | Journal Article | |||||
| 資源タイプ・DCMI | ||||||
| 値 | text | |||||
| 資源タイプ・ローカル表示コード | ||||||
| 値 | 01 | |||||
| URL | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.045409 | |||||
