Abstract
We have investigated the thermal expansion properties, crystal structures, and magnetism of Fe1-XGaX alloys with 27.519). The transformation from the FCC to the D019 phase is accompanied by a decrease in volume per atom of the alloys, in spite of an increase in the temperature. The Curie temperature of FCC Fe-Ga alloys is higher than that of BCC Fe-Ga alloys, and D019 show the non-magnetic in present work. Considering from the above-mentioned results, the anomalous volume behavior accompanying the crystal structure transformation can be related to the contribution of magnetism in FCC Fe-Ga alloys. In a previous report, an FCC structure was obtained by carrying out long-time annealing at 550 °C. However, in this study, the FCC structure is obtained from the BCC structure as the temperature increases smoothly at a rate of 5 °C/min. Moreover, the Fe62.5Ga37.5 alloy undergoes a structural transformation from the BCC to an unknown high-temperature phase.
| Original language | English |
|---|---|
| Pages (from-to) | 1154-1157 |
| Number of pages | 4 |
| Journal | Physica B: Condensed Matter |
| Volume | 405 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Feb 15 2010 |
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Keywords
- Alloys
- Crystal structure
- Magnetic properties
- Phase transition
- Thermal expansion
- X-ray diffraction
ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
Cite this
Anomalous structural transformation and magnetism of Fe-Ga alloys. / Matsushita, Masafumi; Matsushima, Yasushi; Ono, Fumihisa.
In: Physica B: Condensed Matter, Vol. 405, No. 4, 15.02.2010, p. 1154-1157.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Anomalous structural transformation and magnetism of Fe-Ga alloys
AU - Matsushita, Masafumi
AU - Matsushima, Yasushi
AU - Ono, Fumihisa
PY - 2010/2/15
Y1 - 2010/2/15
N2 - We have investigated the thermal expansion properties, crystal structures, and magnetism of Fe1-XGaX alloys with 27.519). The transformation from the FCC to the D019 phase is accompanied by a decrease in volume per atom of the alloys, in spite of an increase in the temperature. The Curie temperature of FCC Fe-Ga alloys is higher than that of BCC Fe-Ga alloys, and D019 show the non-magnetic in present work. Considering from the above-mentioned results, the anomalous volume behavior accompanying the crystal structure transformation can be related to the contribution of magnetism in FCC Fe-Ga alloys. In a previous report, an FCC structure was obtained by carrying out long-time annealing at 550 °C. However, in this study, the FCC structure is obtained from the BCC structure as the temperature increases smoothly at a rate of 5 °C/min. Moreover, the Fe62.5Ga37.5 alloy undergoes a structural transformation from the BCC to an unknown high-temperature phase.
AB - We have investigated the thermal expansion properties, crystal structures, and magnetism of Fe1-XGaX alloys with 27.519). The transformation from the FCC to the D019 phase is accompanied by a decrease in volume per atom of the alloys, in spite of an increase in the temperature. The Curie temperature of FCC Fe-Ga alloys is higher than that of BCC Fe-Ga alloys, and D019 show the non-magnetic in present work. Considering from the above-mentioned results, the anomalous volume behavior accompanying the crystal structure transformation can be related to the contribution of magnetism in FCC Fe-Ga alloys. In a previous report, an FCC structure was obtained by carrying out long-time annealing at 550 °C. However, in this study, the FCC structure is obtained from the BCC structure as the temperature increases smoothly at a rate of 5 °C/min. Moreover, the Fe62.5Ga37.5 alloy undergoes a structural transformation from the BCC to an unknown high-temperature phase.
KW - Alloys
KW - Crystal structure
KW - Magnetic properties
KW - Phase transition
KW - Thermal expansion
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=73749085198&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=73749085198&partnerID=8YFLogxK
U2 - 10.1016/j.physb.2009.11.026
DO - 10.1016/j.physb.2009.11.026
M3 - Article
AN - SCOPUS:73749085198
VL - 405
SP - 1154
EP - 1157
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
IS - 4
ER -