Spin ordering and electronic texture in the bilayer iridate Sr3Ir2O7

被引:45
作者
Dhital, Chetan [1 ]
Khadka, Sovit [1 ]
Yamani, Z. [2 ]
de la Cruz, Clarina [3 ]
Hogan, T. C. [1 ]
Disseler, S. M. [1 ]
Pokharel, Mani [1 ]
Lukas, K. C. [1 ]
Tian, Wei [3 ]
Opeil, C. P. [1 ]
Wang, Ziqiang [1 ]
Wilson, Stephen D. [1 ]
机构
[1] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA
[2] CNR, Canadian Neutron Beam Ctr, Chalk River Labs, Chalk River, ON K0J 1P0, Canada
[3] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN 37831 USA
基金
美国国家科学基金会;
关键词
CRYSTAL-STRUCTURE;
D O I
10.1103/PhysRevB.86.100401
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Through a neutron scattering, charge transport, and magnetization study, the correlated ground state in the bilayer iridium oxide Sr3Ir2O7 is explored. Our combined results resolve scattering consistent with a high temperature magnetic phase that persists above 600 K, reorients at the previously defined T-AF = 280 K, and coexists with an electronic ground state whose phase behavior suggests the formation of a fluctuating charge or orbital phase that freezes below T* approximate to 70 K. Our study provides a window into the emergence of multiple electronic order parameters near the boundary of the metal to insulator phase transition of the 5d J(eff) = 1/2 Mott phase.
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页数:4
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