Tc as a Function of Electron Doping in Mg10B2 Using Sc for Mg Substitution. Filippi, M., Simonelli, L., Agrestini, S., Fratini, M., Palmisano, V., Campi, G., Sanipoli, C., De Negri, S., Giovannini, M., Saccone, A., & Bianconi, A. Journal of Superconductivity, 18(5):67–70, November, 2005.
Tc as a Function of Electron Doping in Mg10B2 Using Sc for Mg Substitution [link]Paper  doi  abstract   bibtex   
Abstract  We have studied the variation of superconducting critical temperature T c as a function of electron doping in the Mg10B2 system using Sc for Mg substitution. The critical temperature in the10B isotope substituted system Mg1− x Sc x 10B2 increases by increasing the scandium content x in the range 0<x<0.012 up to 41.4 K, while the T c of the natural boron system Mg1− x Sc x B2 is nearly constant. The overall difference of T c in Mg1− x Sc x B2 as function of x between the natural B and 10B isotope system seems to indicate that the isotope effect shows large variations with electron doping as expected for the T c enhancement driven by a shape resonance.
@article{filippi_tc_2005,
	title = {Tc as a {Function} of {Electron} {Doping} in {Mg}10B2 {Using} {Sc} for {Mg} {Substitution}},
	volume = {18},
	url = {http://dx.doi.org/10.1007/s10948-005-0053-7},
	doi = {10.1007/s10948-005-0053-7},
	abstract = {Abstract\&nbsp;\&nbsp;We have studied the variation of superconducting critical temperature T c as a function of electron doping in the Mg10B2 system using Sc for Mg substitution. The critical temperature in the10B isotope substituted system Mg1− x Sc x 10B2 increases by increasing the scandium content x in the range 0\&lt;x\&lt;0.012 up to 41.4\&nbsp;K, while the T c of the natural boron system Mg1− x Sc x B2 is nearly constant. The overall difference of T c in Mg1− x Sc x B2 as function of x between the natural B and 10B isotope system seems to indicate that the isotope effect shows large variations with electron doping as expected for the T c enhancement driven by a shape resonance.},
	number = {5},
	journal = {Journal of Superconductivity},
	author = {Filippi, M. and Simonelli, L. and Agrestini, S. and Fratini, M. and Palmisano, V. and Campi, G. and Sanipoli, C. and De Negri, S. and Giovannini, M. and Saccone, A. and Bianconi, A.},
	month = nov,
	year = {2005},
	keywords = {diboride, doping, isotope, phase-separation, sc, scandium, super, transport},
	pages = {67--70}
}

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