Preformed Cooper Pairs in Layered FeSe-Based Superconductors
نویسندگان
چکیده
منابع مشابه
Model of Preformed Hole-Pairs in Cuprate Superconductors
A model of preformed hole-pairs in cuprate superconductors has been proposed based on some experimental results i.e., 1) electron paramagnetic resonance spectra of quenched superconductors which show very frequently the fragment (CuO)4 broken off from the CuO2 layer in the structure, 2) 41 meV peak observed in neutron diffraction and nuclear magnetic resonance spectra of superconductors, 3) Hei...
متن کاملGiant Nernst effect due to fluctuating cooper pairs in superconductors.
A theory of the fluctuation-induced Nernst effect is developed for a two-dimensional superconductor in a perpendicular magnetic field. First, we derive a simple phenomenological formula for the Nernst coefficient, which naturally explains the giant Nernst signal due to fluctuating Cooper pairs. The latter signal is shown to be large even far from the transition and may exceed by orders of magni...
متن کاملCooper pairs in atomic nuclei
G. G. Dussel,1 S. Pittel,2 J. Dukelsky,3 and P. Sarriguren3 1Departamento de Fisica J. J. Giambiagi, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina 2Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716, USA 3Instituto de Estructura de la Materia, CSIC, Serrano 123, E-28006 Madrid, Spain (Received 6 April 2007; published 5 J...
متن کاملComment on "Giant Nernst effect due to fluctuating Cooper pairs in superconductors".
A comment is made on a letter (Phys. Rev. Lett. 102, 067001) and a paper (Phys. Rev. B 83, 020506) regarding the correct expression of the thermal current vertex for Cooper pairs. In the Ginzburg-Landau (GL) theory [1, 2] the electronic current ~ J and the thermal current ~ J carried by fluctuating Cooper pairs (T > Tc) are given as ~ J = 2e ~ J, (1) and ~ J = ω ~ J, (2) in the limit of vanishi...
متن کاملPre-formed Cooper pairs and Bose-Einstein condensation in cuprate superconductors
A two-dimensional (2D) assembly of noninteracting, temperature-dependent, pre-formed Cooper pairs in chemical/thermal equilibrium with unpaired fermions is examined in a binary boson-fermion statistical model as the BoseEinstein condensation (BEC) singularity temperature Tc is approached from above. Compared with BCS theory (which is not a BEC theory) substantially higher Tc’s are obtained with...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2020
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.125.097003