Devitrification and recrystallization of magnetic glass La0.5Ca0.5MnO3

被引：100

作者：

Chaddah, P. ^{[1
]}

Kumar, Kranti ^{[1
]}

Banerjee, A. ^{[1
]}

机构：

[1] CSR, UGC DAE, Indore 452017, India

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.77.100402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report studies on a magnetic glass formed by the arrest of the ferromagnetic-metallic to antiferromagnetic-insulating transition in a manganite around half doping, La0.5Ca0.5MnO3. The observed glass-to-crystal conversion rate varies drastically and nonmonotonically with temperature; this variation is qualitatively consistent with what we predict by phenomenology. We also show that both homogeneous and heterogeneous nucleation can be obtained in the same sample under different annealing conditions. This gives rise to a gigantic change in resistivity without application of any magnetic field.

引用

页数：4

共 21 条

[1] Ferromagnetic ground state of the robust charge-ordered manganite Pr0.5Ca0.5MnO3 obtained by minimal Al substitution [J].