Quasi-Spin Correlations in a Frustrated Quantum Spin Ladder

Takanori Sugimoto; Michiyasu Mori; Takami Tohyama; Sadamichi Maekawa

doi:10.1016/j.phpro.2015.12.111

Quasi-Spin Correlations in a Frustrated Quantum Spin Ladder

Takanori Sugimoto, Michiyasu Mori, Takami Tohyama, Sadamichi Maekawa

Research output: Contribution to journal › Conference article › peer-review

Abstract

The quasi-spin correlations in a frustrated quantum spin ladder with one-half magnetization are theoretically studied by using the density-matrix renormalization-group method and the quasi-spin transformation. In this model, the frustration induces a gapless-to-gapful phase transition with a strong rung coupling. The gapful state is observed as the one-half magnetization plateau in the magnetization curve. In the magnetization-plateau state, we find that the quasi-spin dimer has a large expectation value with long-ranged correlations. This result does not only comes in useful to clarify the magnetization-plateau state, but gives a crucial information to understand the magnetization curve of the real compound BiCu₂PO₆, whose effective spin model corresponds to ours.

Original language	English
Pages (from-to)	861-867
Number of pages	7
Journal	Physics Procedia
Volume	75
DOIs	https://doi.org/10.1016/j.phpro.2015.12.111
Publication status	Published - 2015
Event	20th International Conference on Magnetism, ICM 2015 - Barcelona, Spain Duration: 5 Jul 2015 → 10 Jul 2015

Keywords

Frustration Quantum spin ladder Magnetization plateau BiCu PO

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10.1016/j.phpro.2015.12.111

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title = "Quasi-Spin Correlations in a Frustrated Quantum Spin Ladder",

abstract = "The quasi-spin correlations in a frustrated quantum spin ladder with one-half magnetization are theoretically studied by using the density-matrix renormalization-group method and the quasi-spin transformation. In this model, the frustration induces a gapless-to-gapful phase transition with a strong rung coupling. The gapful state is observed as the one-half magnetization plateau in the magnetization curve. In the magnetization-plateau state, we find that the quasi-spin dimer has a large expectation value with long-ranged correlations. This result does not only comes in useful to clarify the magnetization-plateau state, but gives a crucial information to understand the magnetization curve of the real compound BiCu2PO6, whose effective spin model corresponds to ours.",

keywords = "Frustration Quantum spin ladder Magnetization plateau BiCu PO",

author = "Takanori Sugimoto and Michiyasu Mori and Takami Tohyama and Sadamichi Maekawa",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors. Published by Elsevier B.V.; 20th International Conference on Magnetism, ICM 2015 ; Conference date: 05-07-2015 Through 10-07-2015",

year = "2015",

doi = "10.1016/j.phpro.2015.12.111",

language = "English",

volume = "75",

pages = "861--867",

journal = "Physics Procedia",

issn = "1875-3884",

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TY - JOUR

T1 - Quasi-Spin Correlations in a Frustrated Quantum Spin Ladder

AU - Sugimoto, Takanori

AU - Mori, Michiyasu

AU - Tohyama, Takami

AU - Maekawa, Sadamichi

PY - 2015

Y1 - 2015

N2 - The quasi-spin correlations in a frustrated quantum spin ladder with one-half magnetization are theoretically studied by using the density-matrix renormalization-group method and the quasi-spin transformation. In this model, the frustration induces a gapless-to-gapful phase transition with a strong rung coupling. The gapful state is observed as the one-half magnetization plateau in the magnetization curve. In the magnetization-plateau state, we find that the quasi-spin dimer has a large expectation value with long-ranged correlations. This result does not only comes in useful to clarify the magnetization-plateau state, but gives a crucial information to understand the magnetization curve of the real compound BiCu2PO6, whose effective spin model corresponds to ours.

AB - The quasi-spin correlations in a frustrated quantum spin ladder with one-half magnetization are theoretically studied by using the density-matrix renormalization-group method and the quasi-spin transformation. In this model, the frustration induces a gapless-to-gapful phase transition with a strong rung coupling. The gapful state is observed as the one-half magnetization plateau in the magnetization curve. In the magnetization-plateau state, we find that the quasi-spin dimer has a large expectation value with long-ranged correlations. This result does not only comes in useful to clarify the magnetization-plateau state, but gives a crucial information to understand the magnetization curve of the real compound BiCu2PO6, whose effective spin model corresponds to ours.

KW - Frustration Quantum spin ladder Magnetization plateau BiCu PO

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U2 - 10.1016/j.phpro.2015.12.111

DO - 10.1016/j.phpro.2015.12.111

M3 - Conference article

AN - SCOPUS:84974725118

SN - 1875-3884

VL - 75

SP - 861

EP - 867

JO - Physics Procedia

JF - Physics Procedia

T2 - 20th International Conference on Magnetism, ICM 2015

Y2 - 5 July 2015 through 10 July 2015

ER -

Quasi-Spin Correlations in a Frustrated Quantum Spin Ladder

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