تقرير
NMR study of the Mott transitions to superconductivity in the two Cs_3C_60 phases
| العنوان: | NMR study of the Mott transitions to superconductivity in the two Cs_3C_60 phases |
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| المؤلفون: | Ihara, Yoshihiko, Alloul, Henri, Wzietek, Pawel, Pointiroli, Daniel, Mazzani, Marcello, Riccó, Mauro |
| المصدر: | Phys. Rev. Lett. 104 256402 (2010) |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Strongly Correlated Electrons |
| الوصف: | We report an NMR and magnetometry study on the expanded intercalated fulleride Cs_3C_60 in both its A15 and face centered cubic structures. NMR allowed us to evidence that both exhibit a first-order Mott transition to a superconducting (SC) state, occuring at distinct critical pressures p_c and temperatures T_c. Though the ground state magnetism of the Mott phases differs, their high $T$ paramagnetic and SC properties are found similar, and the phase diagrams versus unit volume per C_60 are superimposed. Thus, as expected for a strongly correlated system, the inter-ball distance is the relvevant parameter driving the electronic behavior and quantum transitions of these systems. Comment: 5 pages, 5 figures. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.104.256402 |
| URL الوصول: | http://arxiv.org/abs/1003.2937 |
| رقم الأكسشن: | edsarx.1003.2937 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.104.256402 |
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