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Title: Structural and magnetic properties of morphotropic phase boundary involved Tb 1−x Gd x Fe 2 compounds

Authors:
ORCiD logo; ; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1359234
Grant/Contract Number:
AC02-06CH11357
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 680; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-03 21:41:50; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Murtaza, Adil, Yang, Sen, Zhou, Chao, Khan, Muhammad Tahir, Ghani, Awais, Tian, Fanghua, Wang, Jieqiong, Song, Xiaoping, Suchomel, Matthrew, and Ren, Yang. Structural and magnetic properties of morphotropic phase boundary involved Tb 1−x Gd x Fe 2 compounds. Netherlands: N. p., 2016. Web. doi:10.1016/j.jallcom.2016.04.091.
Murtaza, Adil, Yang, Sen, Zhou, Chao, Khan, Muhammad Tahir, Ghani, Awais, Tian, Fanghua, Wang, Jieqiong, Song, Xiaoping, Suchomel, Matthrew, & Ren, Yang. Structural and magnetic properties of morphotropic phase boundary involved Tb 1−x Gd x Fe 2 compounds. Netherlands. doi:10.1016/j.jallcom.2016.04.091.
Murtaza, Adil, Yang, Sen, Zhou, Chao, Khan, Muhammad Tahir, Ghani, Awais, Tian, Fanghua, Wang, Jieqiong, Song, Xiaoping, Suchomel, Matthrew, and Ren, Yang. 2016. "Structural and magnetic properties of morphotropic phase boundary involved Tb 1−x Gd x Fe 2 compounds". Netherlands. doi:10.1016/j.jallcom.2016.04.091.
@article{osti_1359234,
title = {Structural and magnetic properties of morphotropic phase boundary involved Tb 1−x Gd x Fe 2 compounds},
author = {Murtaza, Adil and Yang, Sen and Zhou, Chao and Khan, Muhammad Tahir and Ghani, Awais and Tian, Fanghua and Wang, Jieqiong and Song, Xiaoping and Suchomel, Matthrew and Ren, Yang},
abstractNote = {},
doi = {10.1016/j.jallcom.2016.04.091},
journal = {Journal of Alloys and Compounds},
number = C,
volume = 680,
place = {Netherlands},
year = 2016,
month = 9
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.jallcom.2016.04.091

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

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  • In the present paper, structural, magnetic and magnetostrictive properties of Tb 1-xGd xFe 2 (0 <= x <= 1.0) were studied. Synchrotron x-ray diffraction (XRD) results show the non-cubic symmetry of Tb 1-xGd xFe 2 at room temperature and composition-induced crystallographic phase transition from rhombohedral phase to tetragonal phase. The Gd concentration dependent lattice parameters, lattice distortion and change of easy magnetic direction were detected by synchrotron XRD. With the Gd concentration increases, Curie temperature Tc increases while room temperature magnetization and magnetostriction coefficient lambda(111) and the anisotropy of TbFe 2 decrease. The decrease in spontaneous magnetostriction coefficient lambda(111) withmore » increasing Gd substitution can be understood on the basis of the single-ion model; the corresponding decrease of magnetostriction for Tb 1-xGd xFe 2, and the large magnetostriction value occurs on the Tb-rich side, are ascribed to decrease of lambda(111)« less
  • The crystal structure and magnetic and piezoelectric properties of the Bi{sub 1-x}Ca{sub x}FeO{sub 3-x/2} system (x {<=} 0.2) are studied. The crystal-structure transformations occur in the following sequence: rhombohedral (R3c) polar phase (x {<=} 0.06) {yields} modulated polar phase (0.07 {<=} x {<=} 0.1) {yields} modulated antipolar phase (0.11 {<=} x {<=} 0.14). The modulated polar and antipolar phases are weakly ferromagnetic with a spontaneous magnetization of 0.25 G cm{sup 3}/g (x = 0.09). In the polar weak ferromagnet with x = 0.09, a uniform piezoelec- tric response 2.5 times stronger than in the initial BiFeO{sub 3} compound is detectedmore » by the piezoelectric force microscopy.« less
  • Revelation of unequivocal structural information at the atomic level for complex systems is uniquely important for deeper and generic understanding of the structure property connections and a key challenge in materials science. Here in this paper we report an experimental study of the local structure by applying total elastic scattering and Raman scattering analyses to an important non-relaxor ferroelectric solid solution exhibiting the so-called composition-induced morphotropic phase boundary (MPB), where concomitant enhancement of physical properties have been detected. The powerful combination of static and dynamic structural probes enabled us to derive direct correspondence between the atomic-level structural correlations and reportedmore » properties. The atomic pair distribution functions obtained from the neutron total scattering experiments were analysed through big-box atom-modelling implementing reverse Monte Carlo method, from which distributions of magnitudes and directions of off-centred cationic displacements were extracted. We found that an enhanced randomness of the displacement-directions for all ferroelectrically active cations combined with a strong dynamical coupling between the A- and B-site cations of the perovskite structure, can explain the abrupt amplification of piezoelectric response of the system near MPB. Finally, altogether this provides a more fundamental basis in inferring structure-property connections in similar systems including important implications in designing novel and bespoke materials.« less
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