Metallic phase in stoichiometric CeOBiS(2) revealed by space-resolved ARPES.
Metallic phase in stoichiometric CeOBiS(2) revealed by space-resolved ARPES.
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DOI:
10.1038/s41598-018-20351-y
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发表时间:
2018-01-31
影响因子:
4.6
通讯作者:
Saini NL
中科院分区:
文献类型:
--
作者:
Sugimoto T;Paris E;Wakita T;Terashima K;Yokoya T;Barinov A;Kajitani J;Higashinaka R;Matsuda TD;Aoki Y;Mizokawa T;Saini NL
Recently CeOBiS2 system without any fluorine doping is found to show superconductivity posing question on its origin. Using space resolved ARPES we have found a metallic phase embedded in the morphological defects and at the sample edges of stoichiometric CeOBiS2. While bulk of the sample is semiconducting, the embedded metallic phase is characterized by the usual electron pocket at X point, similar to the Fermi surface of doped BiS2-based superconductors. Typical size of the observed metallic domain is larger than the superconducting correlation length of the system suggesting that the observed superconductivity in undoped CeOBiS2 might be due to this embedded metallic phase at the defects. The results also suggest a possible way to develop new systems by manipulation of the defects in these chalcogenides with structural instability.
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影响因子:
4.6
作者:
Bendele M;Barinov A;Joseph B;Innocenti D;Iadecola A;Bianconi A;Takeya H;Mizuguchi Y;Takano Y;Noji T;Hatakeda T;Koike Y;Horio M;Fujimori A;Ootsuki D;Mizokawa T;Saini NL
通讯作者:
Saini NL
影响因子:
1.7
作者:
Mizokawa, Takashi;Bendele, Markus;Saini, Naurang L.
通讯作者:
Saini, Naurang L.
影响因子:
3.7
作者:
Terashima, Kensei;Sonoyama, Junki;Yokoya, Takayoshi
通讯作者:
Yokoya, Takayoshi
影响因子:
3.7
作者:
Usui, Hidetomo;Suzuki, Katsuhiro;Kuroki, Kazuhiko
通讯作者:
Kuroki, Kazuhiko
影响因子:
3.7
作者:
DEUTSCHER, G;ENTINWOHLMAN, O;SHAPIRA, Y
通讯作者:
SHAPIRA, Y