Room temperature ultrahigh magnetoresistance in La0.67Sr0.33MnO3 thin films with ordered nanometer structure

Autor:	Bai-ru Zhao, Lee Chow, X.G. Qiu, Richard Vanfleet, Feng Zhang, Chuanbing Cai, Weiwei Gong, Bing Xu
Rok vydání:	2004
Předmět:	Tunnel effect Colossal magnetoresistance Materials science Ferromagnetism Condensed matter physics Magnetoresistance Scattering Materials Chemistry Grain boundary General Chemistry Atmospheric temperature range Thin film Condensed Matter Physics
Zdroj:	Solid State Communications. 131:271-274
ISSN:	0038-1098
DOI:	10.1016/j.ssc.2004.03.057
Popis:	We report the preparation and investigation of ferromagnetic La0.67Sr0.33MnO3 (LSMO) thin films with orthogonally (along (110) and (1 (1) over bar0)) distributed nanometer-scale cracks. When the density of cracks reaches similar to10(4) cm(-1), the magnetoresistance MR = (R-H - R-0)/R-0 > - 30% was observed in the magnetic fields less than or equal to200 Oe and temperature range from 5 to > 300 K. The discussion about such unique feature will be done based on the spin-polarized electron tunneling and spin scattering, (C) 2004 Elsevier Ltd. All rights reserved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::53268ae5bfe3e639f74a0b3ae6515e96 https://doi.org/10.1016/j.ssc.2004.03.057 Zobrazit plný text záznamu Full Text from ScienceDirect