Structural Change at Metal-Insulator Transition of Tb2Ba2Co4O11

Hiroyuki Kusuya; Akihiko Machida; Yutaka Moritomo; Kenichi Kato; Eiji Nishibori; Masaki Takata; Makoto Sakata; Arao Nakamura

doi:10.1143/JPSJ.70.3577

Structural Change at Metal-Insulator Transition of Tb2Ba2Co4O11

Hiroyuki Kusuya, Akihiko Machida, Yutaka Moritomo, Kenichi Kato, Eiji Nishibori, Masaki Takata, Makoto Sakata, Arao Nakamura

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

64 Citations (Scopus)

Abstract

Temperature variation of the crystal structure has been investigated for Tb₂Ba₂CO₄O₁₁, which shows a metal-insulator (MI) transition at T_MI = 340 K. The compound has a layered-type double-perovskite structure along the c-axis, with alternating the CoO₆ octahedron and the CoO₅ pyramids along the a-axis. With decrease of temperature below T_MI, the distortion of the octahedral and pyramidal sites is fairly released, suggesting that spin state transition of the Co³⁺ ions is the origin for the MI transition.

Original language	English
Pages (from-to)	3577-3580
Number of pages	4
Journal	Journal of the Physical Society of Japan
Volume	70
Issue number	12
DOIs	https://doi.org/10.1143/JPSJ.70.3577
Publication status	Published - 2001 Dec
Externally published	Yes

Keywords

Double-perovskite structure
Metal-insulator transition

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.70.3577

Fingerprint Dive into the research topics of 'Structural Change at Metal-Insulator Transition of Tb2Ba2Co4O11'. Together they form a unique fingerprint.

Cite this

@article{6ebe42b432144ac2bb2102f85641d62e,

title = "Structural Change at Metal-Insulator Transition of Tb2Ba2Co4O11 ",

abstract = "Temperature variation of the crystal structure has been investigated for Tb2Ba2CO4O11, which shows a metal-insulator (MI) transition at TMI = 340 K. The compound has a layered-type double-perovskite structure along the c-axis, with alternating the CoO6 octahedron and the CoO5 pyramids along the a-axis. With decrease of temperature below TMI, the distortion of the octahedral and pyramidal sites is fairly released, suggesting that spin state transition of the Co3+ ions is the origin for the MI transition.",

keywords = "Double-perovskite structure, Metal-insulator transition",

author = "Hiroyuki Kusuya and Akihiko Machida and Yutaka Moritomo and Kenichi Kato and Eiji Nishibori and Masaki Takata and Makoto Sakata and Arao Nakamura",

year = "2001",

month = dec,

doi = "10.1143/JPSJ.70.3577",

language = "English",

volume = "70",

pages = "3577--3580",

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

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "12",

}

TY - JOUR

T1 - Structural Change at Metal-Insulator Transition of Tb2Ba2Co4O11

AU - Kusuya, Hiroyuki

AU - Machida, Akihiko

AU - Moritomo, Yutaka

AU - Kato, Kenichi

AU - Nishibori, Eiji

AU - Takata, Masaki

AU - Sakata, Makoto

AU - Nakamura, Arao

PY - 2001/12

Y1 - 2001/12

N2 - Temperature variation of the crystal structure has been investigated for Tb2Ba2CO4O11, which shows a metal-insulator (MI) transition at TMI = 340 K. The compound has a layered-type double-perovskite structure along the c-axis, with alternating the CoO6 octahedron and the CoO5 pyramids along the a-axis. With decrease of temperature below TMI, the distortion of the octahedral and pyramidal sites is fairly released, suggesting that spin state transition of the Co3+ ions is the origin for the MI transition.

AB - Temperature variation of the crystal structure has been investigated for Tb2Ba2CO4O11, which shows a metal-insulator (MI) transition at TMI = 340 K. The compound has a layered-type double-perovskite structure along the c-axis, with alternating the CoO6 octahedron and the CoO5 pyramids along the a-axis. With decrease of temperature below TMI, the distortion of the octahedral and pyramidal sites is fairly released, suggesting that spin state transition of the Co3+ ions is the origin for the MI transition.

KW - Double-perovskite structure

KW - Metal-insulator transition

UR - http://www.scopus.com/inward/record.url?scp=0035562905&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035562905&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.70.3577

DO - 10.1143/JPSJ.70.3577

M3 - Article

AN - SCOPUS:0035562905

VL - 70

SP - 3577

EP - 3580

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 12

ER -