1. Coherent vs incoherent interlayer transport in layered metals
- Author
-
Wosnitza, J., Hagel, J., Qualls, J. S., Brooks, J. S., Balthes, E., Schweitzer, D., Schlueter, J. A., Geiser, U., Mohtasham, J., Winter, R. W., and Gard, G. L.
- Subjects
Condensed Matter - Strongly Correlated Electrons ,Condensed Matter - Superconductivity - Abstract
The magnetic-field, temperature, and angular dependence of the interlayer magnetoresistance of two different quasi-two-dimensional (2D) organic superconductors is reported. For $\kappa$-(BEDT-TTF)$_2$I$_3$ we find a well-resolved peak in the angle-dependent magnetoresistance at $\Theta = 90^\circ$ (field parallel to the layers). This clear-cut proof for the coherent nature of the interlayer transport is absent for $\beta$''-(BEDT-TTF)$_2$SF$_5$CH$_2$CF$_2$SO$_3$. This and the non-metallic behavior of the magnetoresistance suggest an incoherent quasiparticle motion for the latter 2D metal., Comment: 4 pages, 4 figures. Phys. Rev. B, in press
- Published
- 2002
- Full Text
- View/download PDF