کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1590783 1515465 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low-energy spin fluctuations in the non-Fermi-liquid compound YbRh2Si2
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Low-energy spin fluctuations in the non-Fermi-liquid compound YbRh2Si2
چکیده انگلیسی
We report on inelastic neutron scattering experiments on YbRh2Si2 powder to study the low-energy spin dynamics at temperatures between T=0.8 and 22 K. The low-energy magnetic response is quasielastic. However, it exhibits an unusual form not modelled by a simple relaxation rate yielding a Lorentzian lineshape, but can satisfactorily be described by a phenomenological model involving a distribution of relaxation rates. The lower bound of the relaxation rates varies roughly linear with temperature indicating a pronounced slowing down of the critical modes above the antiferromagnetic ordering temperature TN≈70mK.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science and Technology of Advanced Materials - Volume 8, Issue 5, July 2007, Pages 371-375
نویسندگان
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