Observation of the structural phase transition in manganite films by magneto-optical imaging

Authors
Vlasko-Vlasov, VK Lin, Y Welp, U Crabtree, GW Miller, DJ Nikitenko, VI
Citation
Vk. Vlasko-vlasov et al., Observation of the structural phase transition in manganite films by magneto-optical imaging, J APPL PHYS, 87(9), 2000, pp. 5828-5830
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
87
Issue
9
Year of publication
2000
Part
2
Pages
5828 - 5830
Database
ISI
SICI code
0021-8979(20000501)87:9<5828:OOTSPT>2.0.ZU;2-5
Abstract
A high-resolution magneto-optical imaging technique is used to reveal the f ormation of twins occurring during a martensitic phase transition at simila r to 105 K in La2/3Ca1/3MnO3 (LCMO) films grown on SrTiO3 (STO) substrates. The magnetic contrast arises due to the magneto-elastic tilts of the Mn- m agnetic moments in the twins. Different magnetic structures are found in LC MO films grown on MgO, NGO, and LAO substrates showing the importance of th e substrate material for the manganite film properties. (C) 2000 American I nstitute of Physics. [S0021-8979(00)42708-8].