Electronic structure of heavily electron-doped BaFe1.7Co0.3As2 studied by angle-resolved photoemission
Electronic structure of heavily electron-doped BaFe1.7Co0.3As2 studied by angle-resolved photoemission
复制标题
角分辨光电研究重掺杂BaFe1.7Co0.3As2的电子结构
DOI:
10.1088/1367-2630/11/2/025020
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发表时间:
2008-12
影响因子:
3.3
通讯作者:
Nakayama, K.
中科院分区:
文献类型:
--
作者:
Li, L. J.;Bowen, J. H.;Cao, G. H.;Richard, P.;Terashima, K.;Xu, Z-A;Ding, H.;Xu, Y-M;Sekiba, Y.;Takahashi, T.;Sato, T.;Nakayama, K.
We have performed high-resolution angle-resolved photoemission spectroscopy on heavily electron-doped non-superconducting (SC) BaFe1.7Co0.3As2. We find that the two hole Fermi surface pockets at the Brillouin zone center observed in the hole-doped superconducting Ba0.6K0.4Fe2As2 are absent or very small in this compound, while the two electron pockets at the zone corner significantly expand due to electron doping by the Co substitution. Comparison of the Fermi surface between non-SC and SC samples indicates that the coexistence of hole and electron pockets connected via the antiferromagnetic wave vector is essential in realizing the mechanism of superconductivity in the iron-based superconductors.
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影响因子:
8.6
作者:
K. Kuroki;S. Onari;R. Arita;H. Usui;Yukio Tanaka;H. Kontani;H. Aoki
通讯作者:
K. Kuroki;S. Onari;R. Arita;H. Usui;Yukio Tanaka;H. Kontani;H. Aoki
影响因子:
3.7
作者:
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通讯作者:
L. Wray;D. Qian;D. Hsieh;Y. Xia;L. Li;J. Checkelsky;A. Pasupathy;K. Gomes;C. Parker;A. Fedorov;G. Chen;J. Luo;A. Yazdani;N. Ong;N. L. Wang;M Zahid Hasan
影响因子:
3.5
作者:
Ren Zhi-An;Lu Wei;Zhao Zhong-Xian
通讯作者:
Zhao Zhong-Xian
影响因子:
8.6
作者:
Sefat, Athena S.;Jin, Rongying;Mandrus, David
通讯作者:
Mandrus, David
影响因子:
8.6
作者:
Fa Wang;H. Zhai;Ying Ran;A. Vishwanath;Dung-Hai Lee
通讯作者:
Fa Wang;H. Zhai;Ying Ran;A. Vishwanath;Dung-Hai Lee