Breakdown of the field-induced superconductivity by dynamical spin reversal

Article

关键词: MAGNETIC-FIELD;    ORGANIC CONDUCTORS;    BIS(ETHYLENEDITHIO)TETRASELENAFULVALENE;    RESONANCE;    INTERPLAY;    ANIONS;    MOMENT;    STATE;    BETS;   

DOI  :  10.1103/PhysRevB.86.024525

来源: SCIE

【 摘 要 】

The quasi-two-dimensional molecular conductor lambda-(BETS)(2)FeCl4, where BETS is bis(ethylenedithio) tetraselenafulvalene, shows a superconductivity in the high magnetic field environment. This is due to the compensation effect between the external field and the internal field created by the Fe3+ magnetic moment. Here, we report the simultaneous transport and electron spin resonance (ESR) measurements in the field-induced superconducting state down to 1.65 K. We find that the field-induced superconductivity is partially destroyed by ESR transitions, namely, by dynamical spin reversals of Fe3+. Moreover, it is found from our ESR results that the field-induced superconducting state is inhomogeneous, coexisting with the residual paramagnetic metal state.

【 授权许可】

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