کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7990306 1516127 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electronic structure and magnetic properties of the magnetically ordered intermediate valent Ce5RuGe2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Electronic structure and magnetic properties of the magnetically ordered intermediate valent Ce5RuGe2
چکیده انگلیسی
We report here a comprehensive investigations of the band structure, magnetic properties, electrical transport, and specific-heat for ternary compound Ce5RuGe2 that crystallize in orthorhombic Y2HfS5-type structure. The results show a complex magnetic structure with the field-induced metamagnetic transitions in coexistence with spin-glass-like phase, displayed in the magnetic H−T phase diagram. Simultaneously, a combined experimental and theoretical study based on x-ray photoelectron spectroscopy (XPS) data together with ab initio band structure calculations indicate a mixed valence of Ce due to strong hybridization between Ce 4f states and conduction band. The obtained magnetic ground state of Ce5RuGe2, resulting from localized f-electron states and accompanying strong hybridization effect leading to valence instability of cerium ions are rarely observed for Ce-based intermetallic compounds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 767, 30 October 2018, Pages 512-521
نویسندگان
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