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Author Khazeni, K. ♦ Jia, Y. X. ♦ Lu, L. ♦ Crespi, V. H. ♦ Cohen, M. L. ♦ Zettl, A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ LEAD COMPOUNDS ♦ MAGNETORESISTANCE ♦ MANGANESE OXIDES ♦ NEODYMIUM COMPOUNDS ♦ STRONTIUM COMPOUNDS ♦ PRESSURE DEPENDENCE ♦ MONOCRYSTALS ♦ TEMPERATURE DEPENDENCE
Abstract To investigate the observed huge variations in magnetoresistance between different samples of manganite perovskites we have performed the first high-pressure measurement of magnetoresistance in single crystal Nd{sub 0.5}Sr{sub 0.36}Pb{sub 0.14}MnO{sub 3{minus}{delta}}. Both resistivity and magnetoresistance are strongly suppressed upon application of pressure. The decrease in magnetoresistance with increasing pressure rules out substrate-induced compressive strain as a source of enhanced magnetoresistance. Instead, the magnetoresistance differences between samples are ascribed primarily to the more abrupt nature of the semiconductorlike to metallic phase transition at lower temperatures. {copyright} {ital 1996 The American Physical Society.}
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-01-01
Publisher Department Lawrence Berkeley National Laboratory
Publisher Place United States
Journal Physical Review Letters
Volume Number 76
Issue Number 2
Organization Lawrence Berkeley National Laboratory


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