Structural investigations of Fe-Ga alloys by high-energy x-ray diffraction

Zhihua Nie; Zilong Wang; Yanbin Liang; Daoyong Cong; Gaoqiang Li; Cheng Zhu; Chengwen Tan; Xiaodong Yu; Yang Ren; Yandong Wang

doi:10.1016/j.jallcom.2018.05.327

Structural investigations of Fe-Ga alloys by high-energy x-ray diffraction

Zhihua Nie^*, Zilong Wang, Yanbin Liang, Daoyong Cong, Gaoqiang Li, Cheng Zhu, Chengwen Tan, Xiaodong Yu, Yang Ren, Yandong Wang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

17 Citations (Scopus)

Abstract

The magnetostriction of Fe-Ga alloys is significantly affected by the Ga content, which displays two positive peaks with increasing Ga concentration. This work presents a systematic structural investigation of rapidly-cooled Fe-Ga alloys by the synchrotron-based high-energy x-ray diffraction. Ga-rich clusters are evidenced for the alloys beyond the first magnetostriction peak, which is identified by the anomalous peak broadening for the (200) fundamental reflection and a shrink of lattice parameter. The generation of Ga-rich clusters in A2 matrix results in the sudden decrease of magnetostriction after the first magnetostriction peak. These findings are important for designing high-performance Fe-Ga magnetostrictive alloys by structural tuning.

Original language	English
Pages (from-to)	223-227
Journal	Journal of Alloys and Compounds
Volume	763
DOIs	https://doi.org/10.1016/j.jallcom.2018.05.327
Publication status	Published - 30 Sept 2018
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Crystal structure
Fe-Ga
High-energy x-ray diffraction
Magnetostriction
Superlattice

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title = "Structural investigations of Fe-Ga alloys by high-energy x-ray diffraction",

abstract = "The magnetostriction of Fe-Ga alloys is significantly affected by the Ga content, which displays two positive peaks with increasing Ga concentration. This work presents a systematic structural investigation of rapidly-cooled Fe-Ga alloys by the synchrotron-based high-energy x-ray diffraction. Ga-rich clusters are evidenced for the alloys beyond the first magnetostriction peak, which is identified by the anomalous peak broadening for the (200) fundamental reflection and a shrink of lattice parameter. The generation of Ga-rich clusters in A2 matrix results in the sudden decrease of magnetostriction after the first magnetostriction peak. These findings are important for designing high-performance Fe-Ga magnetostrictive alloys by structural tuning.",

keywords = "Crystal structure, Fe-Ga, High-energy x-ray diffraction, Magnetostriction, Superlattice",

author = "Zhihua Nie and Zilong Wang and Yanbin Liang and Daoyong Cong and Gaoqiang Li and Cheng Zhu and Chengwen Tan and Xiaodong Yu and Yang Ren and Yandong Wang",

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TY - JOUR

T1 - Structural investigations of Fe-Ga alloys by high-energy x-ray diffraction

AU - Nie, Zhihua

AU - Wang, Zilong

AU - Liang, Yanbin

AU - Cong, Daoyong

AU - Li, Gaoqiang

AU - Zhu, Cheng

AU - Tan, Chengwen

AU - Yu, Xiaodong

AU - Ren, Yang

AU - Wang, Yandong

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2018/9/30

Y1 - 2018/9/30

N2 - The magnetostriction of Fe-Ga alloys is significantly affected by the Ga content, which displays two positive peaks with increasing Ga concentration. This work presents a systematic structural investigation of rapidly-cooled Fe-Ga alloys by the synchrotron-based high-energy x-ray diffraction. Ga-rich clusters are evidenced for the alloys beyond the first magnetostriction peak, which is identified by the anomalous peak broadening for the (200) fundamental reflection and a shrink of lattice parameter. The generation of Ga-rich clusters in A2 matrix results in the sudden decrease of magnetostriction after the first magnetostriction peak. These findings are important for designing high-performance Fe-Ga magnetostrictive alloys by structural tuning.

AB - The magnetostriction of Fe-Ga alloys is significantly affected by the Ga content, which displays two positive peaks with increasing Ga concentration. This work presents a systematic structural investigation of rapidly-cooled Fe-Ga alloys by the synchrotron-based high-energy x-ray diffraction. Ga-rich clusters are evidenced for the alloys beyond the first magnetostriction peak, which is identified by the anomalous peak broadening for the (200) fundamental reflection and a shrink of lattice parameter. The generation of Ga-rich clusters in A2 matrix results in the sudden decrease of magnetostriction after the first magnetostriction peak. These findings are important for designing high-performance Fe-Ga magnetostrictive alloys by structural tuning.

KW - Crystal structure

KW - Fe-Ga

KW - High-energy x-ray diffraction

KW - Magnetostriction

KW - Superlattice

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U2 - 10.1016/j.jallcom.2018.05.327

DO - 10.1016/j.jallcom.2018.05.327

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 763

SP - 223

EP - 227

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Structural investigations of Fe-Ga alloys by high-energy x-ray diffraction

Abstract

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Research Keywords

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