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http://hdl.handle.net/10119/4618
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| Title: | Intralayer Carbon Substitution in the MgB_2 Superconductor |
| Authors: | Takenobu, T.
Ito, T.
H. Chi, Dam
Prassides, K.
Iwasa, Y. |
| Issue Date: | 2001-09-11 |
| Publisher: | American Physical Society |
| Magazine name: | Physical Review B |
| Volume: | 64 |
| Number: | 13 |
| Start page: | 134513-1 |
| End page: | 134513-3 |
| DOI: | 10.1103/PhysRevB.64.134513 |
| Abstract: | We report that the ternary MgB_<2-x>C_x compounds adopt an isostructural AlB_2-type hexagonal structure in a relatively small range of nominal carbon concentration, x<0.1. The lattice parameter a decreases almost linearly with increasing carbon content x, while the c parameter remains unchanged, indicating that carbon is exclusively substituted in the boron honeycomb layer without affecting the interlayer interactions. The superconducting transition temperature T_c decreases quasilinearly as a function of the carbon concentration, with a slope steeper than that for the isoelectronic Mg_<1-x>Al_xB_2. |
| Rights: | T. Takenobu, T. Ito, Dam Hieu Chi, K. Prassides and Y. Iwasa., Physical Review B, 64(13), 2001, 134513-1-134513-3. Copyright 2001 by the American Physical Society. http://link.aps.org/abstract/PRB/v64/e134513 |
| URI: | http://hdl.handle.net/10119/4618 |
| Material Type: | publisher |
| Appears in Collections: | a10-1. 雑誌掲載論文 (Journal Articles)
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