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：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

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.

引用

页数：5