@article{5c91d6aee4ec4a05929cc49ce04e3351,
title = "Low-temperature electrical transport in bilayer manganite (formula presented)",
abstract = "The temperature T and magnetic-field H dependences of anisotropic in-plane (formula presented)(formula presented and out-of-plane (formula presented) resistivities are investigated in single crystals of the bilayer manganite (formula presented) Below the Curie transition temperature (formula presented)=125 K, (formula presented) and (formula presented) display almost the same temperature dependence with an up-turn around 50 K. In the metallic regime (50 K (formula presented) 110 K), both (formula presented) and (formula presented) follow a (formula presented) dependence, consistent with the two-magnon scattering. We found that the value of the proportionality coefficient (formula presented) and the ratio of the exchange interaction (formula presented) obtained by fitting the data, are in excellent agreement with the calculated (formula presented) based on the two-magnon model and (formula presented) deduced from neutron scattering, respectively. This provides further support for this scattering mechanism. At even lower T, in the nonmetallic regime (formula presented) both the in-plane (formula presented) and out-of-plane (formula presented)(formula presented)(formula presented)(formula presented) conductivities obey a (formula presented) dependence, consistent with weak-localization effects. Hence this demonstrates the three-dimensional metallic nature of the bilayer manganite (formula presented) at (formula presented).",
author = "Zhang, {C. L.} and Chen, {X. J.} and Almasan, {C. C.} and Gardner, {J. S.} and Sarrao, {J. L.}",
year = "2002",
doi = "10.1103/PhysRevB.65.134439",
language = "English",
volume = "65",
pages = "1--6",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "13",
}