Diffusive charge transport with strongly renormalized carrier mass in hole-doped Mott insulators (Y_<1-x>Cd_x)_2Mo_2O_7 with frustrated pyrochlore lattice
Diffusive charge transport with strongly renormalized carrier mass in hole-doped Mott insulators (Y_<1-x>Cd_x)_2Mo_2O_7 with frustrated pyrochlore lattice
复制标题
受挫烧绿石晶格的空穴掺杂莫特绝缘体 (Y_<1-x>Cd_x)_2Mo_2O_7 中具有强重整化载流子质量的扩散电荷传输
DOI：
10.1103/physrevb.84.174416
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Y.Tokura
中科院分区：
文献类型：
--
作者：
S.Iguchi;Y.Kumano;K.Ueda;S.Kumakura;Y.Tokura
为了探索具有阻挫晶格的强关联电子系统中新的自旋-电荷耦合现象，研究了烧绿石结构的空穴掺杂自旋玻璃（Mott）绝缘体（YCd）MoO的电荷输运和动力学.在空穴掺杂导致自旋玻璃态消失的同时，出现了强重整化电子质量的扩散金属输运，这种输运由于强反铁磁自旋涨落而没有长程自旋有序.
To explore novel spin-charge coupled phenomena in the strongly correlated electron system with frustrated lattice, charge transport and dynamics have been investigated for the hole-doped spin-glass (Mott) insulator (YCd)MoOwith pyrochlore structure. Coincident with the disappearance of spin-glass state by hole doping, a diffusive metallic transport with strongly renormalized electron mass shows up with no long range spin order, which is caused by strong antiferromagnetic spin fluctuation.