Light-induced antiferromagnetic-ferromagnetic phase transition in Pr0.6La0.1Ca0.3MnO3 thin films

被引:35
作者
Baran, M
Gnatchenko, SL
Gorbenko, OY
Kaul, AR
Szymczak, R
Szymczak, H
机构
[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
[2] Natl Acad Sci Ukraine, Inst Low Temp Phys & Engn, UA-310164 Kharkov, Ukraine
[3] Moscow MV Lomonosov State Univ, Moscow 119899, Russia
[4] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
来源
PHYSICAL REVIEW B | 1999年 / 60卷 / 13期
关键词
D O I
10.1103/PhysRevB.60.9244
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of light of He-Ne (lambda = 633 nm) and Ar (lambda = 488 nm) lasers on the magnetization of epitaxial films of manganite Pr0.6La0.1Ca0.3MnO3 was studied. It has been found that the illumination stimulates the antiferromagnetic-ferromagnetic phase transition observed in this manganite in a magnetic field at low temperature. In a magnetic field, the light induces the magnetization increase that apparently is related to a partial transformation of an antiferromagnetic phase into a ferromagnetic one and a formation of ferromagnetic clusters within the antiferromagnetic phase. It was observed that a linearly polarized light effects stronger on the magnetic state of Pr0.6La0.1Ca0.3MnO3 films than an unpolarized light. A relaxation of the light-induced state was not defected. The photoexcited state is stable or a long-lived metastable one. [S0163-1829(99)01637-9].
引用
收藏
页码:9244 / 9247
页数:4
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