Temperature-Dependent High-Resolution Photoemission Study of the Kondo Insulator YbB12
Physical Review Letters Volume 82 Issue 5
Page 992-995
published_at 1999-02-01
アクセス数 : 1037 件
ダウンロード数 : 174 件
今月のアクセス数 : 5 件
今月のダウンロード数 : 3 件
この文献の参照には次のURLをご利用ください : https://ir.lib.hiroshima-u.ac.jp/00018725
| File | |
| Title ( eng ) |
Temperature-Dependent High-Resolution Photoemission Study of the Kondo Insulator YbB12
|
| Creator |
Susaki Tomofumi
Takeda Yukiharu
Arita Masashi
Mamiya Kazutoshi
Fujimori Atsushi
Shimizu Naoki
Iga Fumitoshi
|
| Source Title |
Physical Review Letters
|
| Volume | 82 |
| Issue | 5 |
| Start Page | 992 |
| End Page | 995 |
| Abstract |
We have performed a detailed temperature-dependent photoemission study of the conduction-band states in the Kondo insulator YbB12 using single crystalline samples. Measurements with improved energy resolution have revealed (pseudo)gaps of two energy scales. The size of the narrower gap ~10 meV and its disappearance at high temperatures are consistent with the temperature dependence of the electrical resistivity and the magnetic susceptibility. The larger pseudogap of ~100 meV depends on temperature even at room temperature. We discuss how the characteristics of the Kondo insulator are reflected in the conduction-band photoemission spectra.
|
| Language |
eng
|
| Resource Type | journal article |
| Publisher |
American Physical Society
|
| Date of Issued | 1999-02-01 |
| Rights |
Copyright (c) 1999 American Physical Society.
|
| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.82.992
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.82.992
|
