Suppression of the metal-insulator transition by magnetic field in (Pr_(1-y)Y_y)_(0.7)Ca_(0.3)CoO_3 (y = 0.0625)

Tomoyuki Naito; Hiroyuki Fujishiro; Terukazu NishizakiNorio KobayashiJiri HejtmanekKarel KnizekZdenek Jirak

首页> 外文期刊>Journal of Applied Physics >Suppression of the metal-insulator transition by magnetic field in (Pr_(1-y)Y_y)_(0.7)Ca_(0.3)CoO_3 (y = 0.0625)

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Suppression of the metal-insulator transition by magnetic field in (Pr_(1-y)Y_y)_(0.7)Ca_(0.3)CoO_3 (y = 0.0625)

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摘要

The (Pr_(1-y)Y_y)_(0.7)Ca_(0.3)CoO_3 compound (y = 0.0625, T_(MI-SS) = 40 K), at the lower limit for occurrence of the first-order metal-insulator (MI) and simultaneous spin-state (SS) transitions, has been studied using electrical resistivity and magnetization measurements in magnetic fields up to 17 T. The isothermal experiments demonstrate that the low-temperature insulating phase can be destabilized by an applied field and the metallic phase returns well below the transition temperature T_(MI-SS). The reverse process with decreasing field occurs with a significant hysteresis. The temperature scans taken at fixed magnetic fields reveal a parabolic-like decrease in T_(MI-SS) with increasing field strength and a complete suppression of the MI-SS transition in fields above 9 T.

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来源
《Journal of Applied Physics》 |2014年第23期|233914-1-233914-5|共5页
作者
Tomoyuki Naito; Hiroyuki Fujishiro; Terukazu NishizakiNorio KobayashiJiri HejtmanekKarel KnizekZdenek Jirak;
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作者单位

Institute of Physics, ASCR, Cukrovarnicka 10, 162 00 Prague 6, Czech Republic;

Faculty of Engineering, Iwate University, Morioka 020-8551, Japan;

Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类应用物理学;
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Suppression of the metal-insulator transition by magnetic field in (Pr_(1-y)Y_y)_(0.7)Ca_(0.3)CoO_3 (y = 0.0625)

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