Interlayer magnetoresistance as a function of field and temperature with fields parallel and perpendicular to the current direction in the organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br has been measured. For H ∥ I, the isothermal magnetoresistance R(H) displays a peak effect as a function of field. For H ⊥ I, R(H) increases monotonically with increasing field. Comparison of the peak field with the Hc2(T) data suggests that the peak in R(H) occurs in the mixed state. We analyze the data in terms of the resistively shunted Josephson junction model and the density of states fluctuation model.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering