Domain-Wall Excitations in an Ising-Like Antiferromagnetic Chain under a Transverse Magnetic Field

Mori, Shigeyoshi; Mannari, Isao; Harada, Issei

doi:10.1143/jpsj.63.3474

Cited by 12 publications

(10 citation statements)

References 11 publications

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“…In this model, there is only one possible transition in the transverse field, that is, from the AF state to the paramagnetic state. [23][24][25][26] Note that the earlier high-field magnetization data were actually also difficult to understand. 11 On the one hand, the high-field magnetization at 1.3 K showed saturation at about 40 T, which is in good agreement with the theoretical results.…”

Section: Methodsmentioning

confidence: 99%

Heat transport of the quasi-one-dimensional Ising-like antiferromagnet BaCo2V2O8in longitudinal and transv

Zhao

Liu

et al. 2012

Phys. Rev. B

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The very-low-temperature thermal conductivity (κ) is studied for BaCo2V2O8, a quasi-onedimensional Ising-like antiferromagnet exhibiting an unusual magnetic-field-induced order-todisorder transition. The nearly isotropic transport in the longitudinal field indicates that the magnetic excitations scatter phonons rather than conduct heat. The field dependence of κ shows a sudden drop at ∼ 4 T, where the system undergoes the transition from the Néel order to the incommensurate state. Another dip at lower field of ∼ 3 T indicates an unknown magnetic transition, which is likely due to the spin-flop transition. Moreover, the κ(H) in the transverse field shows a very deep valley-like feature, which moves slightly to higher field and becomes sharper upon lowering the temperature. This indicates a magnetic transition induced by the transverse field, which however is not predicted by the present theories for this low-dimensional spin system.

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Section: Methodsmentioning

confidence: 99%

Heat transport of the quasi-one-dimensional Ising-like antiferromagnet BaCo2V2O8in longitudinal and transv

Zhao

Liu

et al. 2012

Phys. Rev. B

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“…[14][15][16][17][18] . Particularly, it should be remarked that there is a special value of the transverse field called a disorder point, where the ground state is written down analytically.…”

Section: 211-13mentioning

confidence: 99%

“…(1) is affected by the transverse field. 17,18 However, the full magnetization process for general parameters of eq. (1) has not been calculated quantitatively, except for the exactly solved cases J = 0 (the Ising model in a transverse field) and J = 1 (the Heisenberg model).…”

Section: 211-13mentioning

confidence: 99%

Anisotropic antiferromagnetic spin chains in a transverse field: Reentrant behavior of the staggered magnetization

2001

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We investigate one-dimensional S = 1/2 and S = 1 antiferromagnetic quantum spin chains with easy-axis anisotropies in a transverse field. We calculate both the uniform magnetization and the staggered magnetization, using a variant of the density matrix renormalization group method. We find that the staggered magnetizations exhibit reentrant behavior as functions of the transverse field, where the competition between the classical Néel order and the quantum fluctuations plays an important role. We also discuss the critical behavior associated with the staggered magnetizations. 75.10.Jm, 75.30.Gw, 75.40.Cx

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“…6) On the other hand, it has been theoretically demonstrated that a symmetry-breaking transverse field causes the significant quantum fluctuation in the XXZ chain. 7), 8) Considerable differences from the classical system are expected. The theories showed that the magnetization non-linearly increases with respect to the external field, and the disappearance of the Néel order at the critical field is accompanied by the divergence of the field derivative of the magnetization.…”

Section: §1 Introductionmentioning

confidence: 99%

“…According to the theory, the magnetization of the XXZ-chain in transverse field does not saturate at H c and the saturation is achieved only in the limit of infinite field, because the total spin S x along the field direction does not commute with the Isinglike Hamiltonian. 8) Other reason for the increase of the magnetization above H c , is a contribution from the Van-Vleck paramagnetism. Substantially large Van-Vleck paramagnetism was reported in CsCoCl 3 for H c. 9) Our result that the magnetization M = 2.2 µ B larger than the full moment of Co 2+ spin M = 2.175 µ B , calculated with g = 4.35, is observed at 64 T, suggests the Van-Vleck paramagnetic contribution for H⊥c.…”

Section: §1 Introductionmentioning

confidence: 99%

High Field Magnetization and High Frequency ESR of the Quasi One-Dimensional Ising-Like Antiferromagnet CsCoCl₃in Transverse Field

Kimura

Narumi

Kindo

et al. 2005

Prog. Theor. Phys. Suppl.

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High field magnetization measurement on the S = 1/2 quasi one-dimensional Isinglike antiferromagnet CsCoCl3 for H⊥c has been performed under the pulsed magnetic field up to 65 T. We have succeeded in observing the non-linear increase of the magnetization characteristic of the S = 1/2 1D Ising-like antiferromagnet in the transverse field, and the transition from the Néel to the ferromagnetic phase at Hc = 60.3 T. We also have performed high frequency ESR measurements to observe the paramagnetic resonance. The experimental results are discussed in connection with the recent theory.

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Domain-Wall Excitations in an Ising-Like Antiferromagnetic Chain under a Transverse Magnetic Field

Cited by 12 publications

References 11 publications

Heat transport of the quasi-one-dimensional Ising-like antiferromagnet BaCo2V2O8in longitudinal and transv

Heat transport of the quasi-one-dimensional Ising-like antiferromagnet BaCo2V2O8in longitudinal and transv

Anisotropic antiferromagnetic spin chains in a transverse field: Reentrant behavior of the staggered magnetization

High Field Magnetization and High Frequency ESR of the Quasi One-Dimensional Ising-Like Antiferromagnet CsCoCl₃in Transverse Field

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Domain-Wall Excitations in an Ising-Like Antiferromagnetic Chain under a Transverse Magnetic Field

Cited by 12 publications

References 11 publications

Heat transport of the quasi-one-dimensional Ising-like antiferromagnet BaCo2V2O8in longitudinal and transv

Heat transport of the quasi-one-dimensional Ising-like antiferromagnet BaCo2V2O8in longitudinal and transv

Anisotropic antiferromagnetic spin chains in a transverse field: Reentrant behavior of the staggered magnetization

High Field Magnetization and High Frequency ESR of the Quasi One-Dimensional Ising-Like Antiferromagnet CsCoCl3in Transverse Field

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High Field Magnetization and High Frequency ESR of the Quasi One-Dimensional Ising-Like Antiferromagnet CsCoCl₃in Transverse Field