First order magnetic transition in CeFe$_2$ alloys: Phase-coexistence and metastability

Details First order magnetic transition in CeFe$_2$ alloys: Phase-coexistence and metastability First order magnetic transition in CeFe$_2$ alloys: Phase-coexistence and metastability

2003-12-15

arxiv.org/abs/cond-mat/0312352v1

Physics

Condensed Matter

Materials Science

11 pages of text and 3 figures

Scientific paper

10.1103/PhysRevLett.92.147203

First order ferromagnetic (FM) to antiferromagnetic (AFM) phase transition in doped-CeFe$_2$ alloys is studied with micro-Hall probe technique. Clear visual evidence of magnetic phase-coexistence on micrometer scales and the evolution of this phase-coexistence as a function of temperature, magnetic field and time across the first order FM-AFM transition is presented. Such phase-coexistence and metastability arise as natural consequence of an intrinsic disorder-influenced first order transition. Generality of this phenomena involving other classes of materials is discussed.

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