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Title: Morphotropic phase boundary and magnetoelastic behaviour in ferromagnetic Tb 1-xGd xFe 2 system

Abstract

Morphotropic phase boundary (MPB), separating two ferroic phases of different crystal symmetries, has been studied extensively for its extraordinary enhancement of piezoelectricity in ferroelectrics. Based on the same mechanism, we have designed a magnetic MPB in the pseudobinary ferromagnetic system of Tb 1-xGd xFe 2 and the corresponding crystal structure, magnetic properties, and magnetostriction are explored. With the synchrotron x-ray diffractometry, the structure symmetry of TbFe 2-rich compositions is detected to be rhombohedral (R) and that of GdFe 2-rich compositions is tetragonal (T) below T c. With the change of concentration, the value of magnetostriction of the samples changes monotonously, while the MPB composition Tb 0.1Gd 0.9Fe 2, which corresponds to the coexistence of R and T phases, exhibits the maximum magnetization among all available compositions and superposition of magnetostriction behaviour of R and T phases. Furthermore, our result of MPB phenomena in ferromagnets may provide an effective route to design functional magnetic materials with exotic properties.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2]
  1. Xi'an Jiaotong Univ., Xi'an (China)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Basic Research Program of China; National Natural Science Foundation of China (NNSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1248372
Alternate Identifier(s):
OSTI ID: 1226730
Grant/Contract Number:  
AC02-06CH11357; 2012CB619401; 51222104; 51371134; 51471125; 51431007
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 13; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Adil, Murtaza, Yang, Sen, Mi, Meng, Zhou, Chao, Wang, Jieqiong, Zhang, Rui, Liao, Xiaoqi, Wang, Yu, Ren, Xiaobing, Song, Xiaoping, and Ren, Yang. Morphotropic phase boundary and magnetoelastic behaviour in ferromagnetic Tb1-xGdxFe2 system. United States: N. p., 2015. Web. doi:10.1063/1.4916652.
Adil, Murtaza, Yang, Sen, Mi, Meng, Zhou, Chao, Wang, Jieqiong, Zhang, Rui, Liao, Xiaoqi, Wang, Yu, Ren, Xiaobing, Song, Xiaoping, & Ren, Yang. Morphotropic phase boundary and magnetoelastic behaviour in ferromagnetic Tb1-xGdxFe2 system. United States. https://doi.org/10.1063/1.4916652
Adil, Murtaza, Yang, Sen, Mi, Meng, Zhou, Chao, Wang, Jieqiong, Zhang, Rui, Liao, Xiaoqi, Wang, Yu, Ren, Xiaobing, Song, Xiaoping, and Ren, Yang. Tue . "Morphotropic phase boundary and magnetoelastic behaviour in ferromagnetic Tb1-xGdxFe2 system". United States. https://doi.org/10.1063/1.4916652. https://www.osti.gov/servlets/purl/1248372.
@article{osti_1248372,
title = {Morphotropic phase boundary and magnetoelastic behaviour in ferromagnetic Tb1-xGdxFe2 system},
author = {Adil, Murtaza and Yang, Sen and Mi, Meng and Zhou, Chao and Wang, Jieqiong and Zhang, Rui and Liao, Xiaoqi and Wang, Yu and Ren, Xiaobing and Song, Xiaoping and Ren, Yang},
abstractNote = {Morphotropic phase boundary (MPB), separating two ferroic phases of different crystal symmetries, has been studied extensively for its extraordinary enhancement of piezoelectricity in ferroelectrics. Based on the same mechanism, we have designed a magnetic MPB in the pseudobinary ferromagnetic system of Tb1-xGdxFe2 and the corresponding crystal structure, magnetic properties, and magnetostriction are explored. With the synchrotron x-ray diffractometry, the structure symmetry of TbFe2-rich compositions is detected to be rhombohedral (R) and that of GdFe2-rich compositions is tetragonal (T) below Tc. With the change of concentration, the value of magnetostriction of the samples changes monotonously, while the MPB composition Tb0.1Gd0.9Fe2, which corresponds to the coexistence of R and T phases, exhibits the maximum magnetization among all available compositions and superposition of magnetostriction behaviour of R and T phases. Furthermore, our result of MPB phenomena in ferromagnets may provide an effective route to design functional magnetic materials with exotic properties.},
doi = {10.1063/1.4916652},
url = {https://www.osti.gov/biblio/1248372}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 13,
volume = 106,
place = {United States},
year = {2015},
month = {3}
}

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