Magnetoelectricity of single molecular toroics: The Dy4 ring cluster

被引：10

作者：

Popov, A. I. ^{[1
,2
]}

Plokhov, D. I. ^{[3
]}

Zvezdin, A. K. ^{[1
,3
]}

机构：

[1] Moscow Inst Phys & Technol, 9 Inst Sky Pereulok, Dolgoprudnyi 141700, Moscow Region, Russia

[2] Natl Res Univ Elect Technol, Bldg 1,Shokin Sq, Moscow 124498, Russia

[3] Russian Acad Sci, AM Prokhorov Gen Phys Inst, 38 Vavilov St, Moscow 119991, Russia

来源：

PHYSICAL REVIEW B | 2016年 / 94卷 / 18期

基金：

俄罗斯基础研究基金会;

关键词：

MAGNETIC-MOMENT; GROUND-STATE; QUANTUM COMPUTERS; QUBITS;

D O I：

10.1103/PhysRevB.94.184408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spin-electric interactions and magnetic and magnetoelectric properties of the Dy-4 ring molecular nanocluster are investigated. The effective spin-electric Hamiltonian is derived on a base of developed quantum mechanical model of the cluster spin structure. It is shown that the toroidal moment is a source of the quantum magnetoelectric effect. The dynamics of the toroidal moment (macroscopic quantum tunneling) is also discussed.

引用

页数：9

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