Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Margine, E. R."'
Ising superconductivity, observed experimentally in NbSe$_{2}$ and similar materials, has generated tremendous interest. Recently, attention was called to the possible role that spin fluctuations (SF) play in this phenomenon, in addition to the domin
Externí odkaz:
http://arxiv.org/abs/2210.00745
Autor:
Anikin, A., Schaller, R. D., Wiederrecht, G. P., Margine, E. R., Mazin, I. I., Karapetrov, G.
We investigate carrier and collective mode dynamics in 2H-NbSe$_2$ using time-resolved optical pump-probe spectroscopy and compare the results with first-principle calculations. Broadband ultrafast reflectivity studies of 2H-NbSe$_2$ in a wide temper
Externí odkaz:
http://arxiv.org/abs/2006.10210
Autor:
Hammerschmidt, T., Seiser, B., Ford, M. E., Ladines, A. N., Schreiber, S., Wang, N., Jenke, J., Lysogorskiy, Y., Teijeiro, C., Mrovec, M., Cak, M., Margine, E. R., Pettifor, D. G., Drautz, R.
Bond-order potentials (BOPs) provide a local and physically transparent description of the interatomic interaction. Here we describe the efficient implementation of analytic BOPs in the BOPfox program and library. We discuss the integration of the un
Externí odkaz:
http://arxiv.org/abs/1803.07491
Autor:
Zheng, Jing-Jing, Margine, E. R.
Publikováno v:
Phys. Rev. B 95, 014512 (2017)
We report first-principles calculations of the superconducting properties of $\beta$--Bi$_2$Pd within the fully anisotropic Migdal-Eliashberg formalism. We find a single anisotropic superconducting gap of $s$--wave symmetry which varies in magnitude
Externí odkaz:
http://arxiv.org/abs/1703.03012
Autor:
Zheng, Jing-Jing, Margine, E. R.
Publikováno v:
Phys. Rev. B 94, 064509 (2016)
The ab initio anisotropic Migdal-Eliashberg formalism has been used to examine the pairing mechanism and the nature of the superconducting gap in the recently discovered lithium-decorated monolayer graphene superconductor. Our results provide evidenc
Externí odkaz:
http://arxiv.org/abs/1703.03008
Using the {\it ab initio} anisotropic Eliashberg theory including Coulomb interactions, we investigate the electron-phonon interaction and the pairing mechanism in the recently-reported superconducting Ca-intercalated bilayer graphene. We find that C
Externí odkaz:
http://arxiv.org/abs/1601.06111
Autor:
Margine, E. R., Giustino, Feliciano
Graphene is the only member of the carbon family from zero- to three-dimensional materials for which superconductivity has not been observed yet. At this time, it is not clear whether the quest for superconducting graphene is hindered by technical ch
Externí odkaz:
http://arxiv.org/abs/1407.7005
Autor:
Margine, E. R., Giustino, F.
We combine the fully anisotropic Migdal-Eliashberg theory with electron-phonon interpolation based on maximally-localized Wannier functions, in order to perform reliable and highly accurate calculations of the anisotropic temperature-dependent superc
Externí odkaz:
http://arxiv.org/abs/1211.3345
Publikováno v:
Phys. Rev. Lett. 105, 217003 (2010)
New candidate ground states at 1:4, 1:2, and 1:1 compositions are identified in the well-known Fe-B system via a combination of ab initio high-throughput and evolutionary searches. We show that the proposed oP12-FeB2 stabilizes by a break up of 2D bo
Externí odkaz:
http://arxiv.org/abs/1104.2135
Publikováno v:
Appl. Phys. Lett. 98, 081901 (2011)
We use ab initio calculations to examine thermodynamic factors that could promote the formation of recently proposed unique oP10-FeB4 and oP12-FeB2 compounds. We demonstrate that these compact boron-rich phases are stabilized further under pressure.
Externí odkaz:
http://arxiv.org/abs/1104.2136