Magnetically Driven Metal-Insulator Transition in NaOsO3

被引:123
作者
Calder, S. [1 ]
Garlea, V. O. [1 ]
McMorrow, D. F. [2 ]
Lumsden, M. D. [1 ]
Stone, M. B. [1 ]
Lang, J. C. [3 ]
Kim, J. -W. [3 ]
Schlueter, J. A. [4 ]
Shi, Y. G. [5 ,6 ]
Yamaura, K. [6 ]
Sun, Y. S. [7 ]
Tsujimoto, Y. [7 ]
Christianson, A. D. [1 ]
机构
[1] Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA
[2] UCL, London Ctr Nanotechnol, London WC1H 0AH, England
[3] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[4] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[5] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
[6] Natl Inst Mat Sci, Superconducting Properties Unit, Tsukuba, Ibaraki 3050044, Japan
[7] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki 3050044, Japan
基金
英国工程与自然科学研究理事会;
关键词
CD2OS2O7;
D O I
10.1103/PhysRevLett.108.257209
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The metal-insulator transition (MIT) is one of the most dramatic manifestations of electron correlations in materials. Various mechanisms producing MITs have been extensively considered, including the Mott (electron localization via Coulomb repulsion), Anderson (localization via disorder), and Peierls (localization via distortion of a periodic one-dimensional lattice) mechanisms. One additional route to a MIT proposed by Slater, in which long-range magnetic order in a three dimensional system drives the MIT, has received relatively little attention. Using neutron and x-ray scattering we show that the MIT in NaOsO3 is coincident with the onset of long-range commensurate three dimensional magnetic order. While candidate materials have been suggested, our experimental methodology allows the first definitive demonstration of the long predicted Slater MIT.
引用
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页数:5
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