Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Sherafati M"'
Publikováno v:
Phys. Rev. B 93, 024107-Published 13 January 2016
We show that the pressure-induced metal-insulator transition (MIT) in LaMnO$_3$ is fundamentally different from the Mott-Hubbard transition and is percolative in nature, with the measured resistivity obeying the percolation scaling laws. Using the Gu
Externí odkaz:
http://arxiv.org/abs/1507.06592
Publikováno v:
Phys. Rev. B 87, 165429 (2013)
We study the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between two contact magnetic impurities placed on bilayer graphene (BLG). We compute the interaction mediated by the carriers of the pristine and biased BLG as well as the conduction elect
Externí odkaz:
http://arxiv.org/abs/1302.3649
Publikováno v:
Phys. Rev. B 88, 035114 (2013)
We study the Gutzwiller method for the spinless fermion model in one dimension, which is one of the simplest models that incorporates the intersite Coulomb interaction. The Gutzwiller solution of this model has been studied in the literature but with
Externí odkaz:
http://arxiv.org/abs/1302.2108
Autor:
Sherafati, M., Satpathy, S.
Publikováno v:
AIP Conf. Proc. 1461, 24 (2012)
The two dimensionality plus the linear band structure of graphene leads to new behavior of the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, which is the interaction between two magnetic moments mediated by the electrons of the host crystal. We s
Externí odkaz:
http://arxiv.org/abs/1202.2879
Autor:
Sherafati, M., Satpathy, S.
Publikováno v:
Phys. Rev. B 84, 125416 (2011)
We obtain an analytical expression for the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction $J$ in electron or hole doped graphene for linear Dirac bands. The results agree very well with the numerical calculations for the full tight-binding band str
Externí odkaz:
http://arxiv.org/abs/1106.1947
Publikováno v:
New J. Phys. 14, (2012) 083004
We study the electronic structure of graphene with a single substitutional vacancy using a combination of the density-functional, tight-binding, and impurity Green's function approaches. Density functional studies are performed with the all-electron
Externí odkaz:
http://arxiv.org/abs/1105.1129
Autor:
Sherafati, M., Satpathy, S.
Publikováno v:
Phys. Rev. B 83, 165425 (2011)
We study the exchange interaction $J$ between two magnetic impurities in graphene (the RKKY interaction) by directly computing the lattice Green's function for the tight-binding band structure for the honeycomb lattice. The method allows us to comput
Externí odkaz:
http://arxiv.org/abs/1008.4834
Publikováno v:
In Journal of Molecular Liquids October 2016 222:915-922
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Akademický článek
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