کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1868800 1530949 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electron Doping Effect on AeCo2As2 (Ae = Ca, Sr and Ba)
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Electron Doping Effect on AeCo2As2 (Ae = Ca, Sr and Ba)
چکیده انگلیسی

We synthesized polycrystalline samples of solid solutions Ae(Co1-xNix)2As2 (Ae = Ca, Sr and Ba) and measured their magnetization. In the case of SrCo2As2, antiferromagnetic ordering was induced by slight substitution of Ni for Co in a range of x with “uncollapsed tetragonal” crystal structure. In the case of BaCo2As2, magnetic ordering was not induced in all the x range although electronic states come to be close to quantum critical point of magnetic ordering at about x = 0.15. Such magnetic enhancement by Ni substitution for Co indicates that the Fermi energy of Co122 is slightly lower than other compounds with CoAs layers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Procedia - Volume 75, 2015, Pages 309-313