Anisotropic transport property anomaly in K0.8Fe1.65Se2 crystal.

Autor: Teng, M. L., Yin, Y. W., Dong, S. N., Su, T. S., Zhang, M. J., Huang, W. C., Li, X. G.
Předmět:
Zdroj: Journal of Applied Physics; 2014, Vol. 115 Issue 14, p143905-1-143905-5, 5p, 5 Graphs
Abstrakt: The anisotropic transport properties of K0.8Fe1.65Se2 crystal have been investigated with the angle θ (between the magnetic field H and c-axis) varied from 0° to 180°. It is found that the angle dependencies of the mixed state resistivities near Tc0 show a small anomalous peak on the resistive valley for H//ab, probably due to the kinked vortex structure with a lower pinning energy in the phase-separated crystal. In the normal state, the resistivities increase with increasing angles and take a maximum at H//ab, which may be related to the larger resistivity when carriers move along the c-axis driven by Lorentz force. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index