Effects of R-site compositions on the meta-magnetic behavior of Tb1-xPrx(Fe0.4Co0.6)1.88C0.05 (x= 0, 0.8, and 1)

doi:10.1088/1674-1056/24/10/107504

Abstract

We investigate the low-temperature magnetic properties of intermetallic compounds Tb_1-xPr_x(Fe_0.4Co_0.6)_1.88C_0.05 (x= 0, 0.8, and 1) by detailed magnetization measurements. Obvious temperature- and field-induced irreversibilities suggest the coexistence of multiple magnetic phases. Sharp magnetization jumps across the antiferromagnetic to ferromagnetic transition are observed only in the Pr-containing samples, indicating that the behavior of the avalanche-like growth of ferromagnetic clusters is mainly related to the light lanthanide Pr ions. In addition, the time relaxation, field sweep rate, and cooling field dependence of magnetization jumps in the sample with x= 1 are consistent with those in the martensitic scenario.

Keywords: magnetization jumps martensite-like transition intermetallics

Received: 13 March 2015
Revised: 27 April 2015
Accepted manuscript online:

PACS:	75.60.Ej	(Magnetization curves, hysteresis, Barkhausen and related effects)
	75.25.Dk	(Orbital, charge, and other orders, including coupling of these orders)
	75.30.Cr	(Saturation moments and magnetic susceptibilities)
	75.50.Cc	(Other ferromagnetic metals and alloys)

Fund:

Project supported by the National Natural Science Foundation of China (Grant No. 11104091) and the Funds from Provincial Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guangxi Zhuang Autonomous Region, China (Grant No. 1210908-05-K).

Corresponding Authors: Xia Zheng-Cai
E-mail: xia9020@hust.edu.cn

Cite this article:

Huang Jun-Wei (黄俊伟), Xia Zheng-Cai (夏正才), Cheng Gang (成钢), Shi Li-Ran (时丽然), Jin Zhao (金昭), Shang Cui (尚翠), Wei Meng (魏蒙) Effects of R-site compositions on the meta-magnetic behavior of Tb_1-xPr_x(Fe_0.4Co_0.6)_1.88C_0.05 (x= 0, 0.8, and 1) 2015 Chin. Phys. B 24 107504

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Effects of R-site compositions on the meta-magnetic behavior of Tb1-xPrx(Fe0.4Co0.6)1.88C0.05 (x= 0, 0.8, and 1)

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Effects of R-site compositions on the meta-magnetic behavior of Tb_1-xPr_x(Fe_0.4Co_0.6)_1.88C_0.05 (x= 0, 0.8, and 1)