Anisotropic magnetoresistance in the organic superconductor beta ''-(BEDT-TTF)(2)SF5CH2CF2SO3

Article

关键词: BEDT-TTF;    AMBIENT-PRESSURE;    MAGNETIC-FIELD;    MIXED-STATE;    TRANSPORT;    BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE;    KAPPA-(BEDT-TTF)(2)CUBR;    RESISTIVITY;    TRANSITION;    DEPENDENCE;   

DOI  :  10.1103/PhysRevB.59.4376

来源: SCIE

【 摘 要 】

In this paper, we report transport measurements of interlayer magnetoresistance with field parallel and perpendicular to the current direction in an all organic superconductor beta -(BEDT-TTF)(2)SF5CH2CF2SO3. For H parallel to I, the isothermal magnetoresistance R(H) at low temperatures (T less than or equal to T-c) displays a peak effect as a function of field. For H perpendicular to I, R(H) increases monotonically with increasing field. The results are very analogous to the interlayer magnetoresistance in kappa-(BEDT-TTF)(2)X compounds. The observation of the peak effect or negative magnetoresistance in different systems for H parallel to I perpendicular to plane suggests that it is intrinsic to the layered organic superconductors. For H perpendicular to I, the large positive magnetoresistance is in a general agreement with a two band model for charge transport. [S0163-1829(99)07405-6].

【 授权许可】

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