Field-induced Kitaev multipolar liquid in spin-orbit coupled d2 honeycomb Mott insulators

被引：10
|
作者：
Rayyan, Ahmed [1 ]
Churchill, Derek [1 ]
Kee, Hae-Young [1 ,2 ]
机构：
[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
[2] Canadian Inst Adv Res, CIFAR Program Quantum Mat, Toronto, ON M5G 1M1, Canada
来源：
PHYSICAL REVIEW B | 2023年 / 107卷 / 02期
基金：
加拿大自然科学与工程研究理事会; 加拿大创新基金会;
关键词：
QUANTUM; OPTIMIZATION;
D O I：
10.1103/PhysRevB.107.L020408
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Kitaev model, characterized by bond-dependent Ising spin interactions among spin-orbit entangled dipole moments in Mott insulators, offered a new approach to quantum spin liquids. Motivated by another type of bond-dependent interaction among quadrupole moments in 5d2 Mott insulators, we provide a microscopic route to uncover the Kitaev multipolar liquid, featuring fractionalized excitations out of non-Kramers doublets carrying multipole moments. The key ingredient is the magnetic field that allows for bond-anisotropic quadrupole-octupole interactions via mixing with the excited triplet states. The conditions to realize signatures of this phase in real materials are also discussed.
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收藏
页数：5
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