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Title: Unusual giant anisotropic magnetoresistance in manganite strips

Manganites have been known to exhibit giant anisotropic magnetoresistance (GAMR) near metal-insulator transition temperatures. Interestingly, we observed a second GAMR peak at lower temperatures in manganite strips fabricated from epitaxial thin films. The second low-temperature GAMR peak is highly sensitive to magnetic field and vanishes quickly upon increasing of magnetic field. We attribute the emergent GAMR behavior to spatial confinement effect on electronic phase separation in manganite strips.
Authors:
; ; ; ; ; ;  [1] ;  [1] ;  [2]
  1. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22299899
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 24; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; CONFINEMENT; EPITAXY; MAGNETIC FIELDS; MAGNETORESISTANCE; MANGANATES; METALS; THIN FILMS; TRANSITION TEMPERATURE