Motivated by the idea of impurity band superconductivity in heavily Boron doped diamond, we investigate the doping of various elements into diamond to address the question, which impurity band can offer a better DOS at the Fermi level. Surprisingly, we find that the vacancy does the best job in producing the largest DOS at the Fermi surface. To investigate the effect of disorder in Anderson localization of the resulting impurity band, we use a simple tight-binding model. Our preliminary study based on the kernel polynomial method shows that the impurity band is already localized at the concentration of 10-3. Around the vacancy concentration of 0.006 the whole spectrum of diamond becomes localized and quantum percolation takes place. Therefore to achieve conducting bands at concentrations on the scale of 5-10 percent, one needs to introduce correlations such as hopping among the vacancies .
Jafari,S. A. , Allaei,M. , Amini,M. , Shahbazi,F. and Akbarzadeh,H. (2019). Conductivity and superconductivity in heavily vacant diamond. Iranian Journal of Physics Research, 9(1), 85-89.
MLA
Jafari,S. A. , , Allaei,M. , , Amini,M. , , Shahbazi,F. , and Akbarzadeh,H. . "Conductivity and superconductivity in heavily vacant diamond", Iranian Journal of Physics Research, 9, 1, 2019, 85-89.
HARVARD
Jafari S. A., Allaei M., Amini M., Shahbazi F., Akbarzadeh H. (2019). 'Conductivity and superconductivity in heavily vacant diamond', Iranian Journal of Physics Research, 9(1), pp. 85-89.
CHICAGO
S. A. Jafari, M. Allaei, M. Amini, F. Shahbazi and H. Akbarzadeh, "Conductivity and superconductivity in heavily vacant diamond," Iranian Journal of Physics Research, 9 1 (2019): 85-89,
VANCOUVER
Jafari S. A., Allaei M., Amini M., Shahbazi F., Akbarzadeh H. Conductivity and superconductivity in heavily vacant diamond. Dear user; Recently we have changed our software to Sinaweb. If you had already registered with the old site, you may use the same USERNAME but you need to change your password. To do so at the first use, please choose, 2019; 9(1): 85-89.
