Intrinsic Inhomogeneities in Manganite Thin Films Investigated with Scanning Tunneling Spectroscopy

Preprint

6 December 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0212144

Abstract

Thin films of La0.7Sr0.3MnO3 on MgO show a metal insulator transition and colossal magnetoresistance. The shape of this transition can be explained by intrinsic spatial inhomogeneities, which give rise to a domain structure of conducting and insulating domains at the submicrometer scale. These domains then undergo a percolation transition. The tunneling conductance and tunneling gap measured by scanning tunneling spectroscopy were used to distinguish and visualize these domains.

Keywords

SCANNING TUNNELING SPECTROSCOPY
METAL INSULATOR TRANSITION
INTRINSIC INHOMOGENEITIES
TUNNELING SPECTROSCOPY
DOMAIN STRUCTURE
MANGANITE THIN
THIN FILMS

All Related Versions

Version 1, 2002-12-06, ArXiv
Published version: Physical Review Letters, 89 (23), 237203.

This publication has 0 references indexed in Scilit: