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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
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.
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页数:9
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