تقرير
On the superconductivity of the Li$_{x}$RhB$_{y}$ compositions
| العنوان: | On the superconductivity of the Li$_{x}$RhB$_{y}$ compositions |
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| المؤلفون: | Takeya, H., ElMassalami, M., Amorim, H. S., Fujii, H., Mochiku, T., Takano, Y. |
| المصدر: | Materials Research Express 1 (2014) 046001 |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | We observed superconductivity ($T_{c}$ $\simeq$2-3 K) in Li$_{x}$RhB$_{y}$ intermetallics wherein $x$ and $y$ vary over a wide compositional range. The crystal structure consists of cubic unit-cell ($a$ $\simeq$ 12.1 \AA ) with centro-symmetric space group $Pn\bar{3}n$. A weak but positive pressure-induced increase of $T_{c}$ was observed. The correlations between the composition and each of the followings were followed over a wide range of $x$ and $y$: the unit-cell dimensions, $T_{c}$ , Sommerfeld coefficient $\gamma$, Debye temperature $\theta_{D}$, and critical fields $H$$_{c1}$ and $H$$_{c2}$. The thermal evolution of the electronic specific heat within the superconducting phase was observed to follow a quadratic-in-$T$ behavior. In addition, a paramagnetic Meissner Effect (PME) is manifested during a low-field-cooled magnetization cycle. This manifestation of quadratic-in-$T$ behavior and PME feature will be discussed. Comment: 6 pages, 8 figures, to appear in Materials Research Express (2014) |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/2053-1591/1/4/046001 |
| URL الوصول: | http://arxiv.org/abs/1410.2948 |
| رقم الأكسشن: | edsarx.1410.2948 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/2053-1591/1/4/046001 |
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