Phase separation effects in charge-ordered Pr0.5Ca0.5MnO3 thin film

被引：4

作者：

de Brion, S

Storch, G

Chouteau, G

Janossy, A

Prellier, W

Buzin, ER

机构：

[1] CNRS, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France

[2] MPI FKF, F-38042 Grenoble 9, France

[3] ISMRA Univ Caen, CRISMAT, F-14050 Caen, France

[4] Univ Caen, CNRS UMR 6508, F-14050 Caen, France

[5] Budapest Univ Technol & Econ, Inst Phys, H-1521 Budapest, Hungary

来源：

EUROPEAN PHYSICAL JOURNAL B | 2003年 / 33卷 / 04期

关键词：

D O I：

10.1140/epjb/e2003-00182-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Compressed Pr0.5Ca0.5MnO3 films (250 nm) deposited on LaAlO3 have been studied by Electron Spin Resonance technique under high frequency and high magnetic field. We show evidences for the presence of a ferromagnetic phase (FM) embedded in the charge-order phase (CO), in form of thin layers which size depends oil the strength and orientation of the magnetic field (parallel or perpendicular to the substrate plane). This FM phase presents art easy plane magnetic anisotropy with an anisotropy constant 100 times bigger than typical bulk values. When the magnetic field is applied perpendicular to the substrate plane, the FM phase is strongly coupled to the CO phase whereas for the parallel orientation it keeps an independent ferromagnetic resonance even when the CO phase becomes anti ferromagnetic.

引用

页码：413 / 418

页数：6

共 22 条

[1] Collapse of the charge ordering gap of Nd0.5Sr0.5MnO3 in an applied magnetic field [J].