Insulator-metal transition in deep Sr-vacant spin-orbit Mott insulator S2IrO4
Insulator-metal transition in deep Sr-vacant spin-orbit Mott insulator S2IrO4
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深 Sr 空位自旋轨道莫特绝缘体 S2IrO4 中的绝缘体-金属转变
DOI:
10.1016/j.jallcom.2016.06.110
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发表时间:
2016-12
影响因子:
6.2
通讯作者:
Wang Z. H.
中科院分区:
文献类型:
--
作者:
Sun Xuanyong;Liu S. L.;Wang Haiyun;Li Bin;Cheng Jie;Wang Z. H.
Abstract S r 2 I r O 4 exhibits a novel insulating state assisted by spin-orbit interactions. A series of polycrystalline samples of S r 2− x I r O 4 have been synthesized. It is found that deep Sr-vacancies of S r 2− x I r O 4 greatly reduce the rotation of I r O 6 octahedral, and more importantly, a significant structural change occurs around x= 0.48 in both the lattice constants and the I r− O 2 bond length. An insulator-metal transition (IMT) appears and a non-Fermi-liquid metallic electronic state has been proved at x> 0.48 in S r 2− x I r O 4. Furthermore, a sudden drop emerges of the localization temperature T 0 and the antiferromagnetic (AFM) transition temperature T N in S r 1.5 I r O 4, together with the Curie-Weiss temperature reversing its sign. These abrupt changes are closely related with the reduction of the rotation crystal structure.
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影响因子:
4.6
作者:
Liu Y;Yu L;Jia X;Zhao J;Weng H;Peng Y;Chen C;Xie Z;Mou D;He J;Liu X;Feng Y;Yi H;Zhao L;Liu G;He S;Dong X;Zhang J;Xu Z;Chen C;Cao G;Dai X;Fang Z;Zhou XJ
通讯作者:
Zhou XJ
影响因子:
12.5
作者:
Yan Y. J.;Ren M. Q.;Xu H. C.;Xie B. P.;Tao R.;Choi H. Y.;Lee N.;Choi Y. J.;Zhang T.;Feng D. L.
通讯作者:
Feng D. L.
影响因子:
3.7
作者:
Jinchen Wang;Jinchen Wang;Jinchen Wang;S. Aswartham;F. Ye;F. Ye;J. Terzic;Hao Zheng;D. Haskel-D.-Has
通讯作者:
Jinchen Wang;Jinchen Wang;Jinchen Wang;S. Aswartham;F. Ye;F. Ye;J. Terzic;Hao Zheng;D. Haskel-D.-Has
影响因子:
3.7
作者:
T. Qi;O. Korneta;L. Li;K. Butrouna;V. S. Cao;X. Wan;P. Schlottmann;R. Kaul;G. Cao
通讯作者:
T. Qi;O. Korneta;L. Li;K. Butrouna;V. S. Cao;X. Wan;P. Schlottmann;R. Kaul;G. Cao
影响因子:
2.7
作者:
Bhatti, Imtiaz Noor;Rawat, R.;Pramanik, A. K.
通讯作者:
Pramanik, A. K.