Unusual Layer-Dependent Charge Distribution, Collective Mode Coupling, and Superconductivity in Multilayer Cuprate Ba2Ca3Cu4O8F2
Physical Review Letters Volume 103 Issue 3
published_at 2009-07-17
アクセス数 : 896 件
ダウンロード数 : 193 件
今月のアクセス数 : 0 件
今月のダウンロード数 : 0 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/00028891
| File | |
| Title ( eng ) |
Unusual Layer-Dependent Charge Distribution, Collective Mode Coupling, and Superconductivity in Multilayer Cuprate Ba2Ca3Cu4O8F2
|
| Creator |
Chen Yulin
Iyo Akira
Yang Wanli
Arita Masashi
Johnston Steve
Eisaki Hiroshi
Devereaux Thomas P
Hussain Zahid
Shen Z -X
|
| Source Title |
Physical Review Letters
|
| Volume | 103 |
| Issue | 3 |
| Abstract |
Low energy ultrahigh momentum resolution angle resolved photoemission spectroscopy study on four-layer self-doped high T-c superconductor Ba2Ca3Cu4O8F2 (F0234) revealed fine structure in the band dispersion, identifying the unconventional association of hole and electron doping with the inner and outer CuO2 layers, respectively. For the states originating from two inequivalent CuO2 layers, different energy scales are observed in dispersion kinks associated with the collective mode coupling, with the larger energy scale found in the electron (n-) doped state which also has stronger coupling strength. Given the earlier finding that the superconducting gap is substantially larger along the n-type Fermi surface, our observations connect the mode coupling energy and strength with magnitude of the pairing gap.
|
| NDC |
Physics [ 420 ]
|
| Language |
eng
|
| Resource Type | journal article |
| Publisher |
Amer Physical Soc
|
| Date of Issued | 2009-07-17 |
| Rights |
Copyright (c) 2009 American Physical Society.
|
| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.103.036403
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.103.036403
|
