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
收藏
页数：9
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