Spin-1/2 XY chain magnetoelectric: Effect of zigzag geometry

被引：12

作者：

Baran, Ostap ^{[1
]}

Ohanyan, Vadim ^{[2
,3
]}

Verkholyak, Taras ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Condensed Matter Phys, Svientsitskii St 1, UA-79011 Lvov, Ukraine

[2] Yerevan State Univ, Dept Theoret Phys, Alex Manoogian 1, Yerevan 0025, Armenia

[3] ICTP Affiliated Ctr Armenia, Joint Lab Theoret Phys, 2A Alikhanian Bros St, Yerevan 0036, Armenia

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 06期

关键词：

MULTIFERROICS;

D O I：

10.1103/PhysRevB.98.064415

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A spin-1/2 XY chain model of magnetoelectrics on a zigzag chain is considered rigorously. The magnetoelectric coupling is described within the Katsura-Nagaosa-Balatsky mechanism. In the zigzag geometry it leads to the staggered Dzyaloshinskii-Moriya interaction. Using nonuniform spin rotations, the model is reduced to a dimerized XY chain and solved exactly using the Jordan-Wigner transformation. We analyze the ground-state phase diagram of the model and the zero- and finite-temperature magnetoelectric effects and obtain the magnetization and polarization curves versus magnetic and electric fields, as well as the parameters of anisotropic dielectric and magnetoelectric response. It is also shown that the electric field may enhance the magnetocaloric effect in the model.

引用

页数：13

共 53 条

[1] Field-induced gap in Cu benzoate and other S=1/2 antiferromagnetic chains [J].

Affleck, I ;

Oshikawa, M .

PHYSICAL REVIEW B, 1999, 60 (02) :1038-1056

[2] Pulse and quench induced dynamical phase transition in a chiral multiferroic spin chain [J].

Azimi, M. ;

Sekania, M. ;

Mishra, S. K. ;

Chotorlishvili, L. ;

Toklikishvili, Z. ;

Berakdar, J. .

PHYSICAL REVIEW B, 2016, 94 (06)

[3] Quantum Otto heat engine based on a multiferroic chain working substance [J].

Azimi, M. ;

Chotorlishvili, L. ;

Mishra, S. K. ;

Vekua, T. ;

Huebner, W. ;

Berakdar, J. .

NEW JOURNAL OF PHYSICS, 2014, 16

[4] Helical multiferroics for electric field controlled quantum information processing [J].

Azimi, M. ;

Chotorlishvili, L. ;

Mishra, S. K. ;

Greschner, S. ;

Vekua, T. ;

Berakdar, J. .

PHYSICAL REVIEW B, 2014, 89 (02)

[5] Finite-temperature dynamical magnetic susceptibility of quasi-one-dimensional frustrated spin-1/2 Heisenberg antiferromagnets [J].

Bocquet, M ;

Essler, FHL ;

Tsvelik, AM ;

Gogolin, AO .

PHYSICAL REVIEW B, 2001, 64 (09)

[6] Exact description of magnetoelectric effect in the spin-1/2 XXZ chain with Dzyaloshinskii-Moriya interaction [J].

Brockmann, Michael ;

Kluemper, Andreas ;

Ohanyan, Vadim .

PHYSICAL REVIEW B, 2013, 87 (05)

[7] Magnetic phase diagram of the frustrated S=1/2 chain magnet LiCu2O2 [J].

Bush, A. A. ;

Glazkov, V. N. ;

Hagiwara, M. ;

Kashiwagi, T. ;

Kimura, S. ;

Omura, K. ;

Prozorova, L. A. ;

Svistov, L. E. ;

Vasiliev, A. M. ;

Zheludev, A. .

PHYSICAL REVIEW B, 2012, 85 (05)

[8] Multiferroics: a magnetic twist for ferroelectricity [J].

Cheong, Sang-Wook ;

Mostovoy, Maxim .

NATURE MATERIALS, 2007, 6 (01) :13-20

[9] Spin-Peierls instability in a quantum spin chain with Dzyaloshinskii-Moriya interaction [J].

Derzhko, O ;

Richter, J ;

Zaburannyi, O .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (40) :8661-8668

[10] Dynamic structure factors of the spin-1/2 XX chain with Dzyaloshinskii-Moriya interaction [J].

Derzhko, Oleg ;

Verkholyak, Taras .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (10)

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