Interlayer magnetoresistance in the organic superconductorκ−(BEDT−TTF)2Cu[N(CN)2]Brnear the superconducting transition

Autor:	Jack M. Williams, John A. Schlueter, F. Zuo
Rok vydání:	1999
Předmět:	Superconductivity Josephson effect Tunnel effect Materials science Mean field theory Condensed matter physics Magnetoresistance Transition temperature Organic superconductor Type-II superconductor
Zdroj:	Physical Review B. 60:574-580
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.60.574
Popis:	In this paper, we report transport measurements of interlayer magnetoresistance with field parallel and perpendicular to the current direction in the organic superconductor {kappa}-(BEDT-TTF){sub 2}Cu[N(CN){sub 2}]Br. For H{parallel}J, the isothermal magnetoresistance R(H) displays a peak effect as a function of field. While the magnetoresistance at small field can be fitted to stacked Josephson junction model, the negative magnetoresistance is not consistent with quasiparticle tunneling model with a simple mean field gap. The origin for the peak effect remains unresolved. For H{perpendicular}J, R(H) increases monotonically with increasing field. Large magnetoresistance for H{perpendicular}J is consistent with the layered structure of the organic compounds. {copyright} {ital 1999} {ital The American Physical Society}
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7b631b9cdb9d3516b154ae14e4ef0a09 https://doi.org/10.1103/physrevb.60.574 Zobrazit plný text záznamu