ANISOTROPIC LOW-TEMPERATURE MAGNETORESISTIVITY IN THE NORMAL-STATE OFL(2-X)CE(X)CUO(4) SINGLE-CRYSTALS

Authors
CRUSELLAS MA FONTCUBERTA J PINOL S
Citation
Ma. Crusellas et al., ANISOTROPIC LOW-TEMPERATURE MAGNETORESISTIVITY IN THE NORMAL-STATE OFL(2-X)CE(X)CUO(4) SINGLE-CRYSTALS, Physica. C, Superconductivity, 235, 1994, pp. 1401-1402
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
2
Pages
1401 - 1402
Database
ISI
SICI code
0921-4534(1994)235:<1401:ALMITN>2.0.ZU;2-Y
Abstract
We report in-plane and c-axis electrical magnetoresistivity measuremen ts on L(2-x)Ce(x)CuO(4) (L=Pr, Sm, Nd) superconducting single crystals . In the normal state, both resistivities display a minimum (T-min) wh ich separates regions of metallic (T>T-min) from semiconducting-like b ehavior (T<T-min). At T<T-min, it is found that rho(ab)(T) has a logar ithmic temperature dependence and it is argued that it reflects 2D loc alization effects; in contrast, rho(c)(T) can be described in terms of a hopping conductivity.