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arXiv 1807.04582cond-mat.supr-con
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层状氧硫属化物La2O2Bi3AgS6的超导电性

Superconductivity in layered Oxychalcogenide La2O2Bi3AgS6

Rajveer Jha, Yosuke Goto, Ryuji Higashinaka, Tatsuma D. Matsuda, Yuji Aoki, Yoshikazu Mizuguchi

摘要:

本文报道了层状氧硫属化合物La_2O_2Bi_3AgS_6的超导电性。La_2O_2Bi_3AgS_6化合物是本课题组最近报道的一种新型化合物,具有四元结构,空间群为P_4/nmm。La_2O_2Bi_3AgS_6的晶体结构可以看作是LaOBiS_2型层和岩盐型(Bi,Ag)S层的交替叠层。我们测量了低温电阻率,并在0.5K下观察到超导性。在La 2 O2 Bi 3AgS 6中观察到的超导电性为我们提供了一个成功的策略,通过将岩盐型硫属化物层插入到基于BiS 2的层状化合物如LaOBiS 2的范德华能隙中来开发新的超导相。

英文摘要:

We report the superconductivity in layered oxychalcogenide La2O2Bi3AgS6 compound. The La2O2Bi3AgS6 compound has been reported recently by our group, which has a tetragonal structure with the space group P4/nmm. The crystal structure of La2O2Bi3AgS6 can be regarded as alternate stacks of LaOBiS2-type layer and rock-salt-type (Bi,Ag)S layer. We measured low-temperature electrical resistivity and observed superconductivity at 0.5 K. The observation of superconductivity in the La2O2Bi3AgS6 should provide us with the successful strategy for developing new superconducting phases by the insertion of a rock-salt-type chalcogenide layer into the van der Waals gap of BiS2-based layered compound like LaOBiS2.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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