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Structure Re‐determination and Superconductivity Observation of Bulk 1T MoS2
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-01-02 , DOI: 10.1002/anie.201710512 Yuqiang Fang 1, 2, 3 , Jie Pan 1 , Jianqiao He 1, 2, 3 , Ruichun Luo 4 , Dong Wang 1 , Xiangli Che 1 , Kejun Bu 1, 2, 3 , Wei Zhao 1 , Pan Liu 4 , Gang Mu 5 , Hui Zhang 5 , Tianquan Lin 1 , Fuqiang Huang 1, 3
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-01-02 , DOI: 10.1002/anie.201710512 Yuqiang Fang 1, 2, 3 , Jie Pan 1 , Jianqiao He 1, 2, 3 , Ruichun Luo 4 , Dong Wang 1 , Xiangli Che 1 , Kejun Bu 1, 2, 3 , Wei Zhao 1 , Pan Liu 4 , Gang Mu 5 , Hui Zhang 5 , Tianquan Lin 1 , Fuqiang Huang 1, 3
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2H MoS2 has been intensively studied because of its layer‐dependent electronic structures and novel physical properties. Though the metastable 1T MoS2 with a [MoS6] octahedron was observed over the microscopic area, the true crystal structure of 1T phase has not been strictly determined. Moreover, the true physical properties have not been demonstrated from experiments owing to the challenge for the preparation of pure 1T MoS2 crystals. 1T MoS2 single crystals were successfully synthesized and the crystal structure of 1T MoS2 re‐determined from single‐crystal X‐ray diffraction. 1T MoS2 crystallizes in the space group P
m1 with a cell of a=b=3.190(3) Å and c=5.945(6) Å. The individual MoS2 layer consists of MoS6 octahedra sharing edges with each other. More surprisingly, the bulk 1T MoS2 crystals undergo a superconducting transition of Tc=4 K, which is the first observation of superconductivity in pure 1T MoS2 phase.
中文翻译：
1T MoS2的结构重新确定和超导观测
2H MoS 2由于其层依赖的电子结构和新颖的物理性质而受到了广泛的研究。尽管在微观区域观察到具有[MoS 6 ]八面体的亚稳1T MoS 2，但尚未严格确定1T相的真实晶体结构。而且，由于制备纯1T MoS 2晶体的挑战，没有从实验中证明真正的物理性质。成功地合成了1T MoS 2单晶，并通过单晶X射线衍射重新确定了1T MoS 2的晶体结构。1T MoS 2在空间群P中结晶
m1的像元为a = b = 3.190（3）Å和c = 5.945（6）Å。单独的MoS 2层由彼此共享边的MoS 6八面体组成。更令人惊讶的是，块状1T MoS 2晶体经历了超导跃迁T c = 4 K，这是纯1T MoS 2相中超导性的首次观察。
更新日期：2018-01-02
m1 with a cell of a=b=3.190(3) Å and c=5.945(6) Å. The individual MoS2 layer consists of MoS6 octahedra sharing edges with each other. More surprisingly, the bulk 1T MoS2 crystals undergo a superconducting transition of Tc=4 K, which is the first observation of superconductivity in pure 1T MoS2 phase.
中文翻译：
1T MoS2的结构重新确定和超导观测
2H MoS 2由于其层依赖的电子结构和新颖的物理性质而受到了广泛的研究。尽管在微观区域观察到具有[MoS 6 ]八面体的亚稳1T MoS 2，但尚未严格确定1T相的真实晶体结构。而且，由于制备纯1T MoS 2晶体的挑战，没有从实验中证明真正的物理性质。成功地合成了1T MoS 2单晶，并通过单晶X射线衍射重新确定了1T MoS 2的晶体结构。1T MoS 2在空间群P中结晶
m1的像元为a = b = 3.190（3）Å和c = 5.945（6）Å。单独的MoS 2层由彼此共享边的MoS 6八面体组成。更令人惊讶的是，块状1T MoS 2晶体经历了超导跃迁T c = 4 K，这是纯1T MoS 2相中超导性的首次观察。
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