Hole-induced novel spin state within haldane gap in Nd2-xCa xBaNiO5

Tomoyuki Sasaki; Tetsuya Yokoo; Susumu Katano; Jun Akimitsu

doi:10.1143/JPSJ.74.267

Hole-induced novel spin state within haldane gap in Nd_2-xCa _xBaNiO₅

Tomoyuki Sasaki, Tetsuya Yokoo, Susumu Katano, Jun Akimitsu

研究成果 › 査読

2 被引用数 (Scopus)

抄録

Static and dynamical spin properties in a hole-doped one-dimensional Haldane chain system have been investigated by magnetization and neutron scattering measurements on antiferromagnetic Nd_2-xCa _xBaNiO₅. Spin-glass-like weak ferromagnetic behavior and an incommensurate dynamical structure were observed, which are similar to those reported in the Haldane system Y_2-xCa_xBaNiO₅. A novel excitation, moreover, has been revealed at 10 meV because of complete the shift in the Haldane gap due to three-dimensional antiferromagnetic ordering, which possibly provides a total picture of a hole-induced quantum Haldane chain.

本文言語	English
ページ（範囲）	267-270
ページ数	4
ジャーナル	journal of the physical society of japan
巻	74
号	1
DOI	https://doi.org/10.1143/JPSJ.74.267
出版ステータス	Published - 1月 2005
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1143/JPSJ.74.267

他のファイルとリンク

引用スタイル

@article{dce4fefdd4e84c9dbb4de5f35076ee61,

title = "Hole-induced novel spin state within haldane gap in Nd2-xCa xBaNiO5",

abstract = "Static and dynamical spin properties in a hole-doped one-dimensional Haldane chain system have been investigated by magnetization and neutron scattering measurements on antiferromagnetic Nd2-xCa xBaNiO5. Spin-glass-like weak ferromagnetic behavior and an incommensurate dynamical structure were observed, which are similar to those reported in the Haldane system Y2-xCaxBaNiO5. A novel excitation, moreover, has been revealed at 10 meV because of complete the shift in the Haldane gap due to three-dimensional antiferromagnetic ordering, which possibly provides a total picture of a hole-induced quantum Haldane chain.",

keywords = "Haldane gap, Heisenberg chain, Inelastic neutron scattering, Magnetic excitation",

author = "Tomoyuki Sasaki and Tetsuya Yokoo and Susumu Katano and Jun Akimitsu",

year = "2005",

month = jan,

doi = "10.1143/JPSJ.74.267",

language = "English",

volume = "74",

pages = "267--270",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "1",

}

TY - JOUR

T1 - Hole-induced novel spin state within haldane gap in Nd2-xCa xBaNiO5

AU - Sasaki, Tomoyuki

AU - Yokoo, Tetsuya

AU - Katano, Susumu

AU - Akimitsu, Jun

PY - 2005/1

Y1 - 2005/1

N2 - Static and dynamical spin properties in a hole-doped one-dimensional Haldane chain system have been investigated by magnetization and neutron scattering measurements on antiferromagnetic Nd2-xCa xBaNiO5. Spin-glass-like weak ferromagnetic behavior and an incommensurate dynamical structure were observed, which are similar to those reported in the Haldane system Y2-xCaxBaNiO5. A novel excitation, moreover, has been revealed at 10 meV because of complete the shift in the Haldane gap due to three-dimensional antiferromagnetic ordering, which possibly provides a total picture of a hole-induced quantum Haldane chain.

AB - Static and dynamical spin properties in a hole-doped one-dimensional Haldane chain system have been investigated by magnetization and neutron scattering measurements on antiferromagnetic Nd2-xCa xBaNiO5. Spin-glass-like weak ferromagnetic behavior and an incommensurate dynamical structure were observed, which are similar to those reported in the Haldane system Y2-xCaxBaNiO5. A novel excitation, moreover, has been revealed at 10 meV because of complete the shift in the Haldane gap due to three-dimensional antiferromagnetic ordering, which possibly provides a total picture of a hole-induced quantum Haldane chain.

KW - Haldane gap

KW - Heisenberg chain

KW - Inelastic neutron scattering

KW - Magnetic excitation

UR - http://www.scopus.com/inward/record.url?scp=24644498231&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24644498231&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.74.267

DO - 10.1143/JPSJ.74.267

M3 - Article

AN - SCOPUS:24644498231

SN - 0031-9015

VL - 74

SP - 267

EP - 270

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 1

ER -