کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8155645 | 1524826 | 2015 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Martensitic transformation in Heusler alloys Mn2YIn (Y=Ni, Pd and Pt): Theoretical and experimental investigation
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The martensitic transformation and electronic structure of Heusler alloys Mn2YIn (Y=Ni, Pd, Pt) have been investigated by both first-principles calculation and experimental investigation. Theoretical calculation reveals that, the energy difference ÎE between the tetragonal martensitic phase and cubic austenitic phase increases with Y varying from Ni to Pt in Mn2YIn. Thus a structural transition from cubic to tetragonal is most likely to happen in Heusler alloy Mn2PtIn. A single Heusler phase can be obtained in both Mn2PtIn and Mn2PdIn. A martensitic transformation temperature of 615Â K has been identified in Mn2PtIn. And in Mn2PdIn, the austenitic phase is stable and no martensitic transformation is observed till 5Â K. This indicates there may exist a positive relation between ÎE and martensitic transformation temperature. Calculated results show that Mn2YIn are all ferrimagnets in both austenitic and martensitic phases. The magnetic properties are mainly determined by the antiparallel aligned Mn spin moments. These findings can help to develop new FSMAs with novel properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 395, 1 December 2015, Pages 190-195
Journal: Journal of Magnetism and Magnetic Materials - Volume 395, 1 December 2015, Pages 190-195
نویسندگان
Hongzhi. Luo, Bohua Liu, Yuepeng Xin, Pengzhong Jia, Fanbin Meng, Enke Liu, Wenhong Wang, Guangheng Wu,