| アイテムタイプ |
学術雑誌論文 / Journal Article.(1) |
| 公開日 |
2025-11-19 |
| 書誌情報 |
en : Physical Review B
巻 112,
号 3,
発行日 2025-07-14
|
| タイトル |
|
|
タイトル |
Composition-dependent ultrafast luminescence in Cu-Ni alloys: Combined experimental and abinitio study |
|
言語 |
en |
| 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 |
| 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 |
| 著者 |
Suemoto, Tohru
Morino, Haruki
小野, 頌太
Okuno, Tsuyoshi
Suzuki, Takeshi
Okazaki, Kozo
Tani, Shuntaro
Kobayashi, Yohei
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Properties of Cu-Ni solid solutions have long been studied in physical and materials sciences. Yet, their many-body properties have not been well understood. Here, we investigate ultrafast luminescence in near infrared region for Cu1−xNix alloys. The luminescence intensity was the highest in Cu and decreased dramatically by adding Ni, approaching close to the value for pure Ni at x = 0.45. This composition dependence was well reproduced by calculations assuming two body scattering of the energetic electrons. The luminescent decay rate was not straightforward, i.e., it decreased first by adding Ni up to x = 0.17 and then started to increase approaching twice the initial value at x = 0.45. This behavior was in good agreement with ab initio calculations of electron-phonon (e-ph) coupling strength. This work provides a new perspective on the electron relaxation dynamics in solid solutions systems. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
American Physical Society |
|
言語 |
en |
| DOI |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1103/xn1s-28z3 |
| ISSN |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
2469-9969 |
| 権利 |
|
|
権利情報 |
©2025 American Physical Society |
|
言語 |
en |
| 著者版フラグ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
xn1s-28z3.pdf (949 KB)
