Superconducting fluctuations at low temperature Export

@article{citeulike:5695654, abstract = {The effect of fluctuations on the transport and thermodynamic properties of two-dimensional superconductors in a perpendicular magnetic field is studied at low temperature T ≪ T c 0 . The fluctuation conductivity is calculated in the framework of perturbation theory with the help of the usual diagram technique. It is shown that in the dirty case the Aslamazov-Larkin; Maki-Thompson; and density of states contributions are of the same order. At extremely low temperature T / T c 0 ≪[ H - H c 2 (0)]/ H c 2 (0) the total fluctuation correction to the normal conductivity is negative in the dirty limit and depends on the external magnetic field logarithmically δσ∝ln[ H - H c 2 (0)]. In the nonlocal clean limit; the Aslamazov-Larkin contribution to conductivity is evaluated with the aid of Helfand-Werthamer theory. The longitudinal and Hall conductivities are found. The fluctuating magnetization is calculated in the one-loop and two-loop approximations.}, author = {Galitski, V. M. and Larkin, A. I.}, citeulike-article-id = {5695654}, citeulike-linkout-0 = {http://dx.doi.org/10.1103/PhysRevB.63.174506}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRB/v63/i17/e174506}, citeulike-linkout-2 = {http://link.aps.org/pdf/PRB/v63/i17/e174506}, doi = {10.1103/PhysRevB.63.174506}, journal = {Physical Review B}, keywords = {electron, fluctuations, interaction, localization, magnetoresistance, negative, superconductor}, month = {Apr}, number = {17}, pages = {174506+}, posted-at = {2009-09-01 08:40:05}, priority = {2}, publisher = {American Physical Society}, title = {Superconducting fluctuations at low temperature}, url = {http://dx.doi.org/10.1103/PhysRevB.63.174506}, volume = {63}, year = {2001} }

TY - JOUR ID - citeulike:5695654 L3 - citeulike-article-id:5695654 N2 - The effect of fluctuations on the transport and thermodynamic properties of two-dimensional superconductors in a perpendicular magnetic field is studied at low temperature T ≪ T c 0 . The fluctuation conductivity is calculated in the framework of perturbation theory with the help of the usual diagram technique. It is shown that in the dirty case the Aslamazov-Larkin; Maki-Thompson; and density of states contributions are of the same order. At extremely low temperature T / T c 0 ≪[ H - H c 2 (0)]/ H c 2 (0) the total fluctuation correction to the normal conductivity is negative in the dirty limit and depends on the external magnetic field logarithmically δσ∝ln[ H - H c 2 (0)]. In the nonlocal clean limit; the Aslamazov-Larkin contribution to conductivity is evaluated with the aid of Helfand-Werthamer theory. The longitudinal and Hall conductivities are found. The fluctuating magnetization is calculated in the one-loop and two-loop approximations. IS - 17 JF - Physical Review B TI - Superconducting fluctuations at low temperature PB - American Physical Society VL - 63 SP - 174506 KW - electron KW - fluctuations KW - interaction KW - localization KW - magnetoresistance KW - negative KW - superconductor AU - Galitski, VM AU - Larkin, AI PY - 2001/Apr// UR - http://dx.doi.org/10.1103/PhysRevB.63.174506 ER -