搜索结果: 16-30 共查到“物理学 superconductivity”相关记录46条 . 查询时间(0.06 秒)
Type-1.5 superconductivity in two-band systems
Gold landau parameters MathML source separation thermodynamics vortex-induced regime vortex lattice
2014/12/18
In the usual Ginzburg–Landau theory the critical value of Ginzburg–Landau parameter View the MathML source separates regimes of type-I and type-II superconductivity. The latter regime possess thermody...
Superconductivity could form at high temperatures in layered 2-D crystals
Superconductivity could form high temperatures layered 2-D crystals
2014/8/14
An elusive state of matter called superconductivity could be realized in stacks of sheetlike crystals just a few atoms thick, a trio of physicists has determined.
Distinct behaviors of suppression to superconductivity in $LaRu_3Si_2$ induced by Fe and Co dopants
Distinct behaviors suppression superconductivity $LaRu_3Si_2$ Fe Co dopants
2012/2/27
In the superconductor LaRu$_3$Si$_2$ with the Kagome lattice of Ru, we have successfully doped the Ru with Fe and Co atoms. Contrasting behaviors of suppression to superconductivity is discovered betw...
Nodeless superconductivity in Ca3Ir4Sn13: evidence from quasiparticle heat transport
Nodeless superconductivity Ca3Ir4Sn13 evidence quasiparticle heat transport
2012/2/27
We report thermal conductivity measurements down to 50 mK on Ca$_3$Ir$_4$Sn$_{13}$ single crystals, in which superconductivity with $T_c \approx 7$ K was claimed to coexist with ferromagnetic spin-flu...
Anisotropic $H_{c2}$ determined up to 92 T and the signature of multi-band superconductivity in Ca$_{10}$(Pt$_{4}$As$_{8}$)((Fe$_{1-x}$Pt$_{x}$)$_{2}$As$_{2}$)$_{5}$ superconductor
Anisotropic signature multi-band superconductivity superconductor
2012/2/27
The upper critical fields, $H_{c2}$($T$), of single crystals of the superconductor Ca$_{10}$(Pt$_{4-\delta}$As$_{8}$)((Fe$_{0.97}$Pt$_{0.03}$)$_{2}$As$_{2}$)$_{5}$ ($\delta$ $\approx$ 0.246) are deter...
Corrections to the Coulomb pseudopotential in the theory of superconductivity
Coulomb pseudopotential the theory superconductivity
2012/2/27
We calculate corrections to the conventional result for the Coulomb pseudopotential in the theory of superconductivity. We find that retardation effects are still operative for higher order correction...
Superconductivity in the recently proposed ground-state structures of atomic metallic hydrogen is investigated over the pressure range 500 GPa to 3:5 TPa. Near molecular dissociation, the electron{pho...
Equilibrium Distributions and Superconductivity
generalized functions equilibrium distribution superconductivity
2011/7/26
Abstract: In this article two models for charges distributions are discussed. On the basis of our consideration we put different points of view for stationary state. We prove that only finite energy m...
Three Roads to Probe-Brane Superconductivity
Probe-Brane Superconductivity High Energy Physics
2010/12/24
We study a defect system of two parallel D5 probe branes in a large-N_c D3 background. Using the non-abelian DBI action, we study three different fields that can give rise to a superconducting phase t...
Interplay of antiferromagnetism, ferromagnetism and superconductivity in EuFe_2(As_1-xP_x)_2 single crystals
Interplay of antiferromagnetism ferromagnetism superconductivity
2010/11/24
We report a systematic study on the influence of antiferromagnetic and ferromagnetic phases of
Eu2+ moments on the superconducting phase upon doping the As site by isovalent P, which acts as
chemica...
Anisotropic spin fluctuations and superconductivity in "115'' heavy fermion compounds: 59Co NMR study in PuCoGa5
StoAnisotropic spin fluctuations superconductivity NMR study in PuCoGa5
2010/11/24
We report results of 59Co nuclear magnetic resonance measurements on a single crystal of super-
conducting PuCoGa5 in its normal state. The nuclear spin-lattice relaxation rates and the Knight shifts...
Twisted Hubbard Model for Sr2IrO4: Magnetism and Possible High Temperature Superconductivity
Twisted Hubbard Model for Sr2IrO4 Magnetism Possible High Temperature Superconductivity
2010/11/23
Sr2IrO4 has been suggested as a Mott insulator from a single Jeff = 1/2 band, similar to the
cuprates. However this picture is complicated by the measured large magnetic anisotropy and
ferromagnetis...
Personal history of my engagement with cuprate superconductivity, 1986-2010
Personal history cuprate superconductivity
2010/11/22
Six months ago I was asked to write a personal history of my engagement with the high-Tc problem of the cuprate superconductors, in rather informal and autobiographical style. As the work proceeded I ...
Effect of charge ordering on superconductivity in high-temperature superconductors
charge ordering high-temperature superconductors
2010/11/19
It is shown that charge ordering in layered crystalline metals causes an increase in the normal
state energy of the conducting layers. If this increase in the energy exceeds the difference between th...
Search for pressure induced superconductivity in CeFeAsO and CeFePO iron pnictides
pressure induced superconductivity CeFeAsO CeFePO iron pnictides
2010/11/18
The CeFeAsO and CeFePO iron pnictide compounds were studied via electrical transport measurements under high-pressure. In CeFeAsO polycrystals, the magnetic phases involving the Fe
and Ce ions coexis...