论文标题
观察奇怪的金属在孔掺杂的山谷旋转绝缘子中
Observation of strange metal in hole-doped valley-spin insulator
论文作者
论文摘要
奇怪金属中低温下的温度线性电阻是强相关系统的外来特征，如在高-TC超导酸奶油中观察到的，重型费米斯，Fermions，基于Fe的基于Fe的超导体，绘画剂和扭曲的双层石墨烯。在这里，我们介绍了一个孔掺杂的山谷旋转绝缘子V-Doped WSE2，价带有孔口袋。在VXW1-XSE2中观察到奇怪的金属特性，临界载体浓度为9.5 x 10^20 cm-3，从150 K到1.8 k。不饱和的磁倍率几乎与磁场成比例。使用ansatz r（h，t）-r（0,0） （伽玛/alpha = 2）。我们的观察结果开辟了可能引起与二维材料具有强旋转轨道耦合的二维材料中强相关性和超导性的可能路线。
Temperature-linear resistance at low temperatures in strange metals is an exotic characteristic of strong correlation systems, as observed in high-TC superconducting cuprates, heavy fermions, Fe-based superconductors, ruthenates, and twisted bilayer graphene. Here, we introduce a hole-doped valley-spin insulator, V-doped WSe2, with hole pockets in the valence band. The strange metal characteristic was observed in VxW1-xSe2 at a critical carrier concentration of 9.5 x 10^20 cm-3 from 150 K to 1.8 K. The unsaturated magnetoresistance is almost linearly proportional to the magnetic field. Using the ansatz R(H,T) - R(0,0) ~ [(alpha.k.T)^2+(gamma.mu.B)^2]^1/2, the gamma/alpha ratio is estimated approximately to 4, distinct from that for the quasiparticles of LSCO, BaFe2(As1-xPx)2 (gamma/alpha=1) and bosons of YBCO (gamma/alpha=2). Our observation opens up the possible routes that induce strong correlation and superconductivity in two-dimensional materials with strong spin-orbit coupling.
