Magnetic field control of ferroelectric polarization and magnetization of LiCu2O2 compound

doi:10.1088/1674-1056/23/8/087502

›› 2014, Vol. 23 ›› Issue (8): 87502-087502.doi: 10.1088/1674-1056/23/8/087502

• SPECIAL TOPI—International Conference on Nanoscience & Technology, China 2013 • 上一篇下一篇

Magnetic field control of ferroelectric polarization and magnetization of LiCu₂O₂ compound

齐岩, 杜安

College of Sciences, Northeastern University, Shenyang 110819, China

收稿日期:2013-09-04 修回日期:2013-12-02 出版日期:2014-08-15 发布日期:2014-08-15
基金资助:
Project supported by the Academic Scholarship for Doctoral Candidates of China (Grant No. 10145201103), the Fundamental Research Funds for the Central Universities of China (Grant No. N110605002), and the Shenyang Applied Basic Research Foundation, China (Grant No. F12-277-1-78).

Magnetic field control of ferroelectric polarization and magnetization of LiCu₂O₂ compound

Qi Yan (齐岩), Du An (杜安)

College of Sciences, Northeastern University, Shenyang 110819, China

Received:2013-09-04 Revised:2013-12-02 Online:2014-08-15 Published:2014-08-15
Contact: Du An E-mail:duanneu@163.com
Supported by:
Project supported by the Academic Scholarship for Doctoral Candidates of China (Grant No. 10145201103), the Fundamental Research Funds for the Central Universities of China (Grant No. N110605002), and the Shenyang Applied Basic Research Foundation, China (Grant No. F12-277-1-78).

摘要/Abstract

摘要： A spin model of LiCu₂O₂ compound with ground state of ellipsoidal helical structure is adopted. Taking into account the interchain coupling and exchange anisotropy, we investigate the magnetoelectric properties in a rotating magnetic field and perform the Monte Carlo simulation on a two-dimensional lattice. A prominent anisotropic response is observed in both the magnetization curve and the polarization curve, qualitatively coinciding with the behaviors that are detected in the experiment. In addition, the influences of the magnetic field with various magnitudes on polarization are also explored and analyzed in detail. As the magnetic field increases, a much smoother polarization of angle dependence is exhibited, indicating the strong correlation between the magnetic and ferroelectric orders.

关键词: multiferrocity, magnetoelectricity, spiral order, Monte Carlo simulation

Abstract: A spin model of LiCu₂O₂ compound with ground state of ellipsoidal helical structure is adopted. Taking into account the interchain coupling and exchange anisotropy, we investigate the magnetoelectric properties in a rotating magnetic field and perform the Monte Carlo simulation on a two-dimensional lattice. A prominent anisotropic response is observed in both the magnetization curve and the polarization curve, qualitatively coinciding with the behaviors that are detected in the experiment. In addition, the influences of the magnetic field with various magnitudes on polarization are also explored and analyzed in detail. As the magnetic field increases, a much smoother polarization of angle dependence is exhibited, indicating the strong correlation between the magnetic and ferroelectric orders.

Key words: multiferrocity, magnetoelectricity, spiral order, Monte Carlo simulation

中图分类号: (Studies of specific magnetic materials)

75.50.-y

75.10.-b (General theory and models of magnetic ordering) 75.10.Hk (Classical spin models) 75.40.Cx (Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.))

齐岩, 杜安. Magnetic field control of ferroelectric polarization and magnetization of LiCu₂O₂ compound[J]. , 2014, 23(8): 87502-087502.

Qi Yan (齐岩), Du An (杜安). Magnetic field control of ferroelectric polarization and magnetization of LiCu₂O₂ compound[J]. Chin. Phys. B, 2014, 23(8): 87502-087502.

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Magnetic field control of ferroelectric polarization and magnetization of LiCu₂O₂ compound

Magnetic field control of ferroelectric polarization and magnetization of LiCu₂O₂ compound

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