Effects of inhomogeneity on the interlayer magnetoresistance in the organic superconductor <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>κ</mi><mo>−</mo><mrow><msub><mrow><mn></mn><mo>(</mo><mi mathvariant="normal">B</mi><mi mathvariant="normal">E</mi><mi mathvariant="normal">D</mi><mi mathvariant="normal">T</mi><mo>−</mo><mi mathvariant="normal">T</mi><mi mathvariant="normal">T</mi><mi mathvariant="normal">F</mi><mo>)</mo><mn></mn></mrow><mrow><mn>2</mn></mrow></msub></mrow><mrow><msub><mrow><mi mathvariant="normal">Cu</mi><mo>[</mo><mi mathvariant="normal">N</mi><mo>(</mo><mi mathvariant="normal">CN</mi><mo>)</mo><mn></mn></mrow><mrow><mn>2</mn></mrow></msub></mrow><mo>]</mo><mi mathvariant="normal">Br</mi></math></span>

F. Zuo; X. Su; P. Zhang; J. A. Schlueter; M. E. Kelly; Jack M. Williams

doi:10.1103/PhysRevB.57.R5610

Rapid Communication

Effects of inhomogeneity on the interlayer magnetoresistance in the organic superconductor $κ - {(B E D T - T T F)}_{2} {Cu [N (CN)}_{2}] Br$

F. Zuo, X. Su, P. Zhang, J. A. Schlueter, M. E. Kelly, and Jack M. Williams

Phys. Rev. B 57, R5610(R) – Published 1 March 1998

Abstract

In this paper, we compare the interlayer transport in the organic superconductor $κ - {(B E D T - T T F)}_{2} {Cu [N (CN)}_{2}] Br$ on samples of different inhomogeneities in terms of resistive transition width $Δ T .$ For field parallel to the current, $H ‖ I,$ in the direction perpendicular to the layers, the isothermal magnetoresistance $R (H)$ displays a peak effect as a function of field for high quality samples. The peak effect decreases gradually with increasing $Δ T$ and it disappears completely for the sample with $Δ T > 2$ K. The results demonstrate clearly that the peak in $R (H)$ in the interlayer direction is intrinsic to the layered structure in this compound.

Received 12 September 1997

DOI:https://doi.org/10.1103/PhysRevB.57.R5610

Authors & Affiliations

F. Zuo, X. Su, and P. Zhang

Department of Physics, University of Miami, Coral Gables, Florida 33124

J. A. Schlueter, M. E. Kelly, and Jack M. Williams

Chemistry and Materials Science Divisions, Argonne National Laboratory, Argonne, Illinois 60439

References (Subscription Required)

Click to Expand

Issue

Vol. 57, Iss. 10 — 1 March 1998

Reuse & Permissions

Access Options

Author publication services for translation and copyediting assistance advertisement

Physical Review B

covering condensed matter and materials physics