| Item type |
デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2015-04-17 |
| タイトル |
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|
タイトル |
EuX_2(X=Rh, Ir)の電子構造とフェルミ面 |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Electoronic structure and Fermi surface of EuX_2(X=Rh, Ir) |
|
言語 |
en |
| 作成者 |
渡部, 紘幸
立津, 慶幸
眞榮平, 孝裕
Watanabe, Hiroyuki
Tatetsu, Yasutomi
Maehira, Takahiro
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
We investigated the electronic structures of EuX_2 (X=Rh and Ir) by using the relativistic linear augmented-plane-wave (RLAPW) method with the exchange-correration potential in the local density approximation. All 4f electrons in Eu were assumed to be itinerant, which means that these 4f electrons are treated as valence electrons, and the calculation was performed in the paramagnetic phase. Note here that relativity should be taken into account, because of the large atomic numbers of the constituent atoms. We found that the energy bands near the Fermi level are mainly because of the hybridization between the Eu 4f and X d electrons. These compounds are compensated metals because of having two chemical units in the unit cell. The Fermi surface of EuRh_2 is found to consists of two hole sheets and two electron sheets. The Fermi surface produces many de Haas-van Alphen frequencies in the wide frequency range between 1 MOe and 300 MOe. In addition, we calculated LaRh_2 and LaIr_2 that have the same number of valence electrons of EuRh_2 and EuIr_2. |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
紀要論文 |
| 出版者 |
|
|
出版者 |
琉球大学理学部 |
|
言語 |
ja |
| 出版者 |
|
|
出版者 |
Faculty of Science University of the Ryukyus |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| 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 |
departmental bulletin paper |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 識別子 |
|
|
識別子 |
http://hdl.handle.net/20.500.12000/30736 |
|
識別子タイプ |
HDL |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0286-9640 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN00250774 |
| 収録物名 |
|
|
収録物名 |
琉球大学理学部紀要 |
|
言語 |
ja |
| 収録物名 |
|
|
収録物名 |
BULLETIN OF THE FACULTY OF SCIENCE UNIVERSITY OF THE RYUKYUS |
|
言語 |
en |
| 書誌情報 |
号 99,
p. 1-13,
発行日 2015-03-31
|
No99p001.pdf
