Low-temperature study of field-induced antiferromagnetic-ferromagnetic transition in Pd-doped Fe-Rh

被引：54

作者：

Kushwaha, Pallavi ^{[1
]}

Lakhani, Archana ^{[1
]}

Rawat, R. ^{[1
]}

Chaddah, P. ^{[1
]}

机构：

[1] UGC DAE Consortium Sci Res, Indore 452001, Madhya Pradesh, India

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 17期

关键词：

antiferromagnetic materials; ferromagnetic materials; ferromagnetic-antiferromagnetic transitions; iron alloys; magnetic cooling; palladium alloys; rhodium alloys; vitreous state; MAGNETIC PHASE-TRANSITIONS; ORDERED ALLOY FERH; MAGNETOSTRICTION; PRESSURE; MOMENTS; SYSTEM;

D O I：

10.1103/PhysRevB.80.174413

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The first-order antiferromagnetic (AFM) to ferromagnetic (FM) transition in the functional material Fe(49)(Rh(0.93)Pd(0.07))(51) has been studied at low temperatures and high magnetic fields. We have addressed the nonmonotonic variation in lower critical field required for FM to AFM transition. It is shown that critically slow dynamics of the transition dominates below 50 K. At low temperature and high magnetic field, state of the system depends on the measurement history resulting in tunable coexistence of AFM and FM phases. By following cooling and heating in unequal magnetic field protocol it is shown that equilibrium state at 6 T magnetic field is AFM state. Glasslike FM state at 6 T (obtained after cooling in 8 T) shows reentrant transition with increasing temperature; viz., devitrification to AFM state followed by melting to FM state.

引用

页数：7

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