کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1815384 | 1025663 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crossover from classical to quantum regime in Ce-lattice systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Crossover from classical to quantum regime in Ce-lattice systems Crossover from classical to quantum regime in Ce-lattice systems](/preview/png/1815384.png)
چکیده انگلیسی
Different types of magnetic phase diagrams are analyzed with the scope to detect signs of a crossover between the classical (thermal fluctuations) regime and the critical (quantum fluctuations) one. In systems where TN,C is driven down to the mK range by alloying Ce-ligands (x), clear changes in the magnetic phase are observed once TN,C<2K. On the contrary, when TN vanishes at finite temperature (driven by pressure or x) the phase boundaries do not reach temperatures lower than â3K. In a third type of phase diagrams, characterized by a weak TN(x,p) dependence, signs of phase separation are suspected. Distinctive properties of each mentioned group are recognized and some exemplary cases analyzed in detail. Those properties coincide indicating a crossover temperature slightly above 2Â K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 398, Issue 2, 1 September 2007, Pages 412-415
Journal: Physica B: Condensed Matter - Volume 398, Issue 2, 1 September 2007, Pages 412-415
نویسندگان
J.G. Sereni,