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pro vyhledávání: '"Balaselvi, S. Jemima"'
Raman scattering measurements have been carried out in MgB2-xCx for x=0.0 -0.30. The broad Raman band around 600cm-1 range, which corresponds to the E2g mode in MgB2 is seen to narrow and reduce in intensity with increasing carbon content. For x>0.15
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309400
The superconducting transition temperature, T$_{C}$, the residual resistivity $\rho_{0}$ and the slope of resistivity curve at high temperature, d$\rho$/dT, have been measured in a series of MgB$_{2}$ samples that have been chemically substituted to
Externí odkaz:
http://arxiv.org/abs/cond-mat/0303022
The variation of TC in MgB2 has been systematically investigated for monovalent cation substitution in Mg1-xLixB2 and in Mg1-xCuxB2 and simultaneous cation and Carbon substitution in Mg0.80Li0.20B2-xCx and Mg0.95Cu0.05B2-xCx using dc resistivity and
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209200
Autor:
Bharathi, A., Balaselvi, S. Jemima, Premila, M., Sairam, T. N., Reddy, G. L. N., Sundar, C. S., Hariharan, Y.
Following the recent theoretical prediction of superconductivity in hole doped LiBC by Rosner et al [1], we have attempted to synthesise Li deficient LixBC (x = 1, 0.8, 0.6 and 0.4) and look for superconductivity in this system. Our synthesis procedu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207448
Autor:
Bharathi, A., Balaselvi, S. Jemima, Kalavathi, S., Reddy, G. L. N., Sastry, V. Sankara, Hariharan, Y., Radhakrishnan, T. S.
Successful replacement of B by C in the series MgB2-xCx for values of x upto 0.3 are reported. Resistivity and ac susceptibility measurements have been carried out in the samples. Solubility of carbon, inferred from the observed change in the lattice
Externí odkaz:
http://arxiv.org/abs/cond-mat/0202031
Publikováno v:
Superconductor Science & Technology; Dec2004, Vol. 17 Issue 12, p1401-1405, 5p
