First order transition from ferro - to antiferromagnetism in CeFe 2 based pseudobinary alloys
نویسندگان
چکیده
We present results of ac susceptibility measurements highlighting the presence of thermal hysteresis and phase coexistence across the ferro-to antiferromag-netic transition in various CeFe 2 based pseudobinary systems. These results indicate that the ferro-to antiferromagnetic transition in these systems is first order in nature.
منابع مشابه
A first order phase transition induced by magnetic field and temperature
Taking the pseudobinary C15-Laves phase compound Ce(Fe 0.96 Al 0.04) 2 as a paradigm for studying a ferromagnetic(FM) to antiferromagnetic(AFM) phase transition, we present interesting thermomagnetic history effects in magnetotransport measurements across this FM-AFM transition. We argue that these distinctive hysteretic features can be used to identify the exact nature first order or second or...
متن کاملFirst order metamagnetic transition in CeFe2 based pseudobinary alloys
We present results of dc magnetisation study showing that the low temperature antiferromagnetic state in various CeFe2-based pseudobinary alloys can be transformed into ferromagnetic state through a magnetic field induced phase transition. We highlight the presence of hysteresis and phase coexistence across this metamagnetic transition and argue that the observed phase transition is of first or...
متن کاملFirst order transition from antiferromagnetism to ferromagnetism in Ce(Fe0.96Al0.04)2
Taking the pseudobinary C15 Laves phase compound Ce(Fe0.96Al0.04)2 as a paradigm for studying a ferromagnetic to antiferromagnetic phase transition, we present interesting thermomagnetic history effects in magnetotransport as well as magnetisation measurements across this phase transition. A comparison is made with history effects observed across the ferromagnetic to antiferromagnetic transitio...
متن کاملMagnetic order of FeMn alloy on the W(001) surface
We investigate theoretically the ground state of the FeMn binary alloy monolayer on the W(001) surface, the stability of different magnetic configurations (ferro/antiferromagnetic, disordered local moments, etc.) and estimate concentrations at which a transition occurs between different magnetic orders. The tight-binding linear muffin-tin orbital method combined with the coherent potential appr...
متن کاملMicroscopic origin of ferro-antiferromagnetic transition upon non-magnetic substitution in Ru2(Mn1-xVx)Ge full Heusler alloys
On the basis of first-principle simulations of interatomic magnetic exchange interactions, we show that the transition from antiferromagnetic order in Ru2MnGe to ferromagnetic order in vanadium substituted Ru2Mn1 xVxGe is due to a progressive increase of the first-nearest neighbor (NN) ferromagnetic coupling between Mn atoms. The revealed mechanism is quite unusual since commonly one would expe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2008