Unexpected periodicity in the quasi-two-dimensional Mott insulator 1T-TaS2 revealed by angle-resolved photoemission -: art. no. 153101

被引：87

作者：

Perfetti, L ^{[1
]}

Gloor, TA

Mila, F

Berger, H

Grioni, M

机构：

[1] Ecole Polytech Fed Lausanne, Inst Phys Nanostruct, CH-1015 Lausanne, Switzerland

[2] Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland

[3] Ecole Polytech Fed Lausanne, Inst Phys Mat Complexe, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.71.153101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-resolution angle-resolved photoemission data from the insulating phase of the charge-density-wave (CDW) material 1T-TaS2 reveal the backfolding of the electronic bands associated with the CDW superlattice, but also an additional, unexpected periodicity. This periodicity is consistent with the dispersion predicted at zero temperature if three-sublattice magnetic order is present, suggesting that it is the signature of fluctuations associated with magnetic ordering of a Mott insulator on a triangular lattice.

引用

页数：4

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