Magnetic torque of κ-(BEDT-TTF)2Cu(NCS)2 single crystals

S. Kawamata, K. Okuda, T. Sasaki, N. Toyota

研究成果: Article査読

1 被引用数 (Scopus)


The magnetic torque of κ-(BEDT-TFF)2Cu(NCS)2 was measured as a function of field direction θ with respect to the a*-axis under constant magnetic fields, H, up to 8 kOe in the temperature range from 1.3 to 8 K. A sharp cusp, C1, in the irreversible region was found at θc1 near the H∥bc-plane between 1.3 and 7 K. In addition, extra cusps, C2 and C3, were observed at θc2 and θc3, respectively, between 2.5 and 6 K. At each temperature, the perpendicular component of H giving each cusp is kept constant as {Mathematical expression} i.e., cusps C1, C2, and C3 are ruled by the characteristic field perpendicular to the bc-plane Hcp1, Hcp2, and Hcp3, respectively. These behaviors are almost the same as those we found in the oxide superconductor Bi2Sr2CaCu2O8. These results suggest that the cusps are intrinsic for irreversible vortex states of these layered superconductors.

ジャーナルJournal of Superconductivity
出版ステータスPublished - 1994 6月

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
  • 物理学および天文学(その他)


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