Spin-vacancy-induced long-range order in a new haldane-gap antiferromagnet

Y. Uchiyama; Y. Sasago; I. Tsukada; K. Uchinokura; A. Zheludev; T. Hayashi; N. Miura; P. Böni

doi:10.1103/PhysRevLett.83.632

Spin-vacancy-induced long-range order in a new haldane-gap antiferromagnet

Y. Uchiyama, Y. Sasago, I. Tsukada, K. Uchinokura, A. Zheludev, T. Hayashi, N. Miura, P. Böni

Research output: Contribution to journal › Article › peer-review

209 Scopus citations

Abstract

Magnetic susceptibility, high-field magnetization, and inelastic neutron scattering experiments are used to study the magnetic properties of a new S = 1 quasi-one-dimensional antiferromagnet PbNi₂V₂O₈. Interchain interactions are shown to be almost, but not quite, strong enough to destroy the nonmagnetic singlet ground state and the energy gap in the magnetic excitation spectrum. Substituting nonmagnetic Mg²⁺ (S = 0) ions for Ni²⁺ (S = 1) induces a magnetically ordered state at low temperatures. To our knowledge this is the first observation of doping-induced long-range order in a Haldane-gap system.

Original language	English
Pages (from-to)	632-635
Number of pages	4
Journal	Physical Review Letters
Volume	83
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.83.632
State	Published - 1 Jan 1999
Externally published	Yes

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abstract = "Magnetic susceptibility, high-field magnetization, and inelastic neutron scattering experiments are used to study the magnetic properties of a new S = 1 quasi-one-dimensional antiferromagnet PbNi2V2O8. Interchain interactions are shown to be almost, but not quite, strong enough to destroy the nonmagnetic singlet ground state and the energy gap in the magnetic excitation spectrum. Substituting nonmagnetic Mg2+ (S = 0) ions for Ni2+ (S = 1) induces a magnetically ordered state at low temperatures. To our knowledge this is the first observation of doping-induced long-range order in a Haldane-gap system.",

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AU - Uchiyama, Y.

AU - Sasago, Y.

AU - Tsukada, I.

AU - Uchinokura, K.

AU - Zheludev, A.

AU - Hayashi, T.

AU - Miura, N.

AU - Böni, P.

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N2 - Magnetic susceptibility, high-field magnetization, and inelastic neutron scattering experiments are used to study the magnetic properties of a new S = 1 quasi-one-dimensional antiferromagnet PbNi2V2O8. Interchain interactions are shown to be almost, but not quite, strong enough to destroy the nonmagnetic singlet ground state and the energy gap in the magnetic excitation spectrum. Substituting nonmagnetic Mg2+ (S = 0) ions for Ni2+ (S = 1) induces a magnetically ordered state at low temperatures. To our knowledge this is the first observation of doping-induced long-range order in a Haldane-gap system.

AB - Magnetic susceptibility, high-field magnetization, and inelastic neutron scattering experiments are used to study the magnetic properties of a new S = 1 quasi-one-dimensional antiferromagnet PbNi2V2O8. Interchain interactions are shown to be almost, but not quite, strong enough to destroy the nonmagnetic singlet ground state and the energy gap in the magnetic excitation spectrum. Substituting nonmagnetic Mg2+ (S = 0) ions for Ni2+ (S = 1) induces a magnetically ordered state at low temperatures. To our knowledge this is the first observation of doping-induced long-range order in a Haldane-gap system.

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Spin-vacancy-induced long-range order in a new haldane-gap antiferromagnet

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