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

Article

关键词: DOPED MANGANITES;    PHASE-SEPARATION;    MAGNETIC-FIELD;    CR;    COEXISTENCE;    TRANSITION;   

DOI  :  10.1103/PhysRevB.74.224445

来源: SCIE

【 摘 要 】

We show that minimal disturbance to the robust charge-ordered Pr0.5Ca0.5MnO3 by 2.5% Al substitution on the Mn site drives the system toward a ferromagnetic ground state. The history-dependent coexisting phases observed are explained as the outcome of a hindered first-order transition with glasslike arrest of kinetics resulting in irreversibility. Consistent with a simple phase diagram having a ferromagnetic ground state, it is experimentally shown that these coexisting phases are far from equilibrium.

【 授权许可】

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