کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1602044 1005227 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural and magnetic properties of UFe6Ga6
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Structural and magnetic properties of UFe6Ga6
چکیده انگلیسی
UFe6Ga6 polycrystalline samples were prepared by arc-melting, and single crystals were grown by the Czochralski method. This compound crystallizes in the orthorhombic ScFe6Ga6-type structure (space group Immm, a=5.0560(4), b=8.5484(7) and c=8.6914(7) Å), an ordered variant of the ThMn12-type structure. A ferromagnetic-type transition at TC=530(5) K is seen in the magnetization and A.C.-susceptibility measurements, and no other magnetic anomaly is observed down to 5 K. Single crystal magnetization measurements along the three different crystallographic axes indicated a as the easy direction, with a spontaneous magnetization MS=12.3 μB/f.u. at 5 K. The analysis of the 57Fe Mössbauer spectroscopy data indicated magnetic hyperfine fields, Bhf, significantly lower on 4f sites than on 8k sites, in agreement with the trend already observed on UFexAl12−x, where the average Bhf were found to increase with the iron-iron interatomic distances.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 14, Issue 5, May 2006, Pages 530-536
نویسندگان
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