Phase separation in the vicinity of the surface of κ-(BEDT-TTF) 2Cu[N(CN)2]Br by fast cooling

N. Yoneyama, T. Sasaki, N. Kobayashi, Y. Ikemoto, H. Kimura

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Partial suppression of superconductivity by fast cooling has been observed in the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br by two means: a marked sample size effect on the magnetic susceptibility and direct imaging of insulating regions by scanning microregion infrared reflectance spectroscopy. Macroscopic insulating regions are proposed in the vicinity of the crystalline surface after fast cooling, with diameters of 50-100μm and depths of a few μm. The very large in-plane penetration depth reported to date (∼24-100μm) can be explained by the existence of the insulating regions.

本文言語English
論文番号214519
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
72
21
DOI
出版ステータスPublished - 2005 12月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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