تقرير
Synthesis, crystal structure and physical properties of quasi-one-dimensional ACr$_3$As$_3$ (A = Rb, Cs)
| العنوان: | Synthesis, crystal structure and physical properties of quasi-one-dimensional ACr$_3$As$_3$ (A = Rb, Cs) |
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| المؤلفون: | Tang, Zhang-Tu, Bao, Jin-Ke, Yi, Liu, Bai, Hua, Jiang, Hao, Zhai, Hui-Fei, Feng, Chun-Mu, Xu, Zhu-An, Cao, Guang-Han |
| المصدر: | Science China Materials 58, 543-549 (2015) |
| سنة النشر: | 2015 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science, Condensed Matter - Superconductivity |
| الوصف: | Recently, new Cr-based superconductors, A$_2$Cr$_3$As$_3$ (A = K, Rb, Cs), have gained a strong interest because of their one-dimensional crystal structures and electron correlations. Here we report the crystal structure and physical properties of two related materials ACr$_3$As$_3$ (A = Rb, Cs) which are synthesized via a soft-chemical A+ deintercalation in A$_2$Cr$_3$As$_3$. The new compounds remain one-dimensional (Cr$_3$As$_3$)$_{\infty}$ linear chains, and the interchain distance can be tuned by the incorporation of the alkali-metal cations with different sizes. The physical-property measurements indicate a local-moment behavior at high temperatures, and the moments freeze into a cluster spin-glass state below 5$\sim$6 K. No superconductivity was observed in both materials. We also found that, with increasing the interchain distance, the Cr effective moments increase monotonically, accompanied with the enhancement of semi-conductivity. Our results shed light on the understanding of occurrence of superconductivity in A$_2$Cr$_3$As$_3$. Comment: 9 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s40843-015-0063-0 |
| URL الوصول: | http://arxiv.org/abs/1508.01387 |
| رقم الأكسشن: | edsarx.1508.01387 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s40843-015-0063-0 |
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