FABRICATION AND PHYSICAL-PROPERTIES OF C-AXIS ORIENTED THIN-FILMS OF LAYERED PEROVSKITE LA2-2XSR1+2XMN2O7

Authors
KONISHI Y KIMURA T IZUMI M KAWASAKI M TOKURA Y
Citation
Y. Konishi et al., FABRICATION AND PHYSICAL-PROPERTIES OF C-AXIS ORIENTED THIN-FILMS OF LAYERED PEROVSKITE LA2-2XSR1+2XMN2O7, Applied physics letters, 73(20), 1998, pp. 3004-3006
Citations number
12
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
73
Issue
20
Year of publication
1998
Pages
3004 - 3006
Database
ISI
SICI code
0003-6951(1998)73:20<3004:FAPOCO>2.0.ZU;2-I
Abstract
We have grown c-axis oriented films of a layered perovskite La2-2xSr12xMn2O7 (x = 0.4) by pulsed laser deposition under the limited growth condition; above 900 degrees C and below 100 mTorr for substrate tempe rature and oxygen pressure (P-O2), respectively. Otherwise, epitaxial but composition-unidentified films were deposited. The films show a re sistive transition around 100 K in coincidence with the magnetic trans ition. The value of resistivity at low temperature is larger than that of a single crystal by about two orders of magnitude, perhaps due to the canted spin ordering. The films show gigantic magnetoresistance ac companied with hysteresis. (C) 1998 American Institute of Physics. [S0 003-6951(98)04246-6].