Cu NMR/NQR studies on magnetism in impurity/hole-doped spin-ladder compounds

Shigeki Ohsugi; Yoshio Kitaoka; Masaki Azuma; Yoshie Fujishiro; Mikio Takano; Takashi Nagata; Hirokazu Fujino; Jun Akimitsu

doi:10.1023/A:1012200305404

Cu NMR/NQR studies on magnetism in impurity/hole-doped spin-ladder compounds

Shigeki Ohsugi, Yoshio Kitaoka, Masaki Azuma, Yoshie Fujishiro, Mikio Takano, Takashi Nagata, Hirokazu Fujino, Jun Akimitsu

研究成果 › 査読

抄録

Cu nuclear magnetic resonance (NMR) spectra of impurities (Zn, Ni, and La)-doped spin-1/2 Heisenberg ladder compounds SrCu₂O3 (Sr123) are broadened with Curie-like temperature (T) dependence. The spectra have been successfully fit by using a quasi-one-dimensional (Q1D) staggered polarization (SP) model. Such a SP has also revealed in Cu NMR measurements of Sr_{14 - x}Ca_xCu₂₄O₄₁ (Cax) with hole-doped ladders. The origin of possible 3D antiferromagnetic (AF) long-range ordering in (Zn and Ni)-doped Sr123 and Cax around x = 12 at low T is considered to be similar. Once unpaired spins S₀'s are induced and 3D interlayer interaction occurs, the localized spins couple in the whole system.

本文言語	English
ページ（範囲）	157-162
ページ数	6
ジャーナル	Hyperfine Interactions
巻	133
号	1-4
DOI	https://doi.org/10.1023/A:1012200305404
出版ステータス	Published - 2001
外部発表	はい

ASJC Scopus subject areas

原子分子物理学および光学
核物理学および高エネルギー物理学
凝縮系物理学
物理化学および理論化学

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10.1023/A:1012200305404

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title = "Cu NMR/NQR studies on magnetism in impurity/hole-doped spin-ladder compounds",

abstract = "Cu nuclear magnetic resonance (NMR) spectra of impurities (Zn, Ni, and La)-doped spin-1/2 Heisenberg ladder compounds SrCu2O3 (Sr123) are broadened with Curie-like temperature (T) dependence. The spectra have been successfully fit by using a quasi-one-dimensional (Q1D) staggered polarization (SP) model. Such a SP has also revealed in Cu NMR measurements of Sr14 - xCaxCu24O41 (Cax) with hole-doped ladders. The origin of possible 3D antiferromagnetic (AF) long-range ordering in (Zn and Ni)-doped Sr123 and Cax around x = 12 at low T is considered to be similar. Once unpaired spins S0's are induced and 3D interlayer interaction occurs, the localized spins couple in the whole system.",

keywords = "Cu NMR/NQR, Magnetic ordering, Spin ladder",

author = "Shigeki Ohsugi and Yoshio Kitaoka and Masaki Azuma and Yoshie Fujishiro and Mikio Takano and Takashi Nagata and Hirokazu Fujino and Jun Akimitsu",

note = "Funding Information: This work was supported by Core Research for Evolutional Science and Technology (CREST) of the Japan Science and Technology Corporation (JST) and also partly by a Grant-in-Aid for Scientific Research (No. 09440138) from the Ministry of Education, Sports, Science, and Culture of Japan.",

year = "2001",

doi = "10.1023/A:1012200305404",

language = "English",

volume = "133",

pages = "157--162",

journal = "Hyperfine Interaction",

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T1 - Cu NMR/NQR studies on magnetism in impurity/hole-doped spin-ladder compounds

AU - Ohsugi, Shigeki

AU - Kitaoka, Yoshio

AU - Azuma, Masaki

AU - Fujishiro, Yoshie

AU - Takano, Mikio

AU - Nagata, Takashi

AU - Fujino, Hirokazu

AU - Akimitsu, Jun

N1 - Funding Information: This work was supported by Core Research for Evolutional Science and Technology (CREST) of the Japan Science and Technology Corporation (JST) and also partly by a Grant-in-Aid for Scientific Research (No. 09440138) from the Ministry of Education, Sports, Science, and Culture of Japan.

PY - 2001

Y1 - 2001

N2 - Cu nuclear magnetic resonance (NMR) spectra of impurities (Zn, Ni, and La)-doped spin-1/2 Heisenberg ladder compounds SrCu2O3 (Sr123) are broadened with Curie-like temperature (T) dependence. The spectra have been successfully fit by using a quasi-one-dimensional (Q1D) staggered polarization (SP) model. Such a SP has also revealed in Cu NMR measurements of Sr14 - xCaxCu24O41 (Cax) with hole-doped ladders. The origin of possible 3D antiferromagnetic (AF) long-range ordering in (Zn and Ni)-doped Sr123 and Cax around x = 12 at low T is considered to be similar. Once unpaired spins S0's are induced and 3D interlayer interaction occurs, the localized spins couple in the whole system.

AB - Cu nuclear magnetic resonance (NMR) spectra of impurities (Zn, Ni, and La)-doped spin-1/2 Heisenberg ladder compounds SrCu2O3 (Sr123) are broadened with Curie-like temperature (T) dependence. The spectra have been successfully fit by using a quasi-one-dimensional (Q1D) staggered polarization (SP) model. Such a SP has also revealed in Cu NMR measurements of Sr14 - xCaxCu24O41 (Cax) with hole-doped ladders. The origin of possible 3D antiferromagnetic (AF) long-range ordering in (Zn and Ni)-doped Sr123 and Cax around x = 12 at low T is considered to be similar. Once unpaired spins S0's are induced and 3D interlayer interaction occurs, the localized spins couple in the whole system.

KW - Cu NMR/NQR

KW - Magnetic ordering

KW - Spin ladder

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Cu NMR/NQR studies on magnetism in impurity/hole-doped spin-ladder compounds

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