Strange metal state near quantum superconductor-metal transition in thin films

  title={Strange metal state near quantum superconductor-metal transition in thin films},
  author={K. Tikhonov and M. Feigel’man},
  journal={arXiv: Superconductivity},
We develop a theory of quantum $T = 0$ phase transition (q-SMT) between metal and superconducting ground states in a two-dimensional metal with frozen-in spatial fluctuations $\delta\lambda(r)$ of the Cooper attraction constant. When strength of fluctuations $\delta\lambda(r)$ exceeds some critical magnitude, usual mean-field-like scenario of the q-SMT breaks down due to spontaneous formation of local droplets of superconducting phase. The density of these droplets grows exponentially with the… Expand
4 Citations

Figures from this paper

Equivalence of interacting semimetals and low-density many-body systems to single-particle systems with quenched disorder
Describing collective behaviour of a large number of interacting particles is one of the biggest challenges in physics and is key to understanding phase transitions and transport and thermodynamicExpand
Tail states and unusual localization transition in low-dimensional Anderson model with power-law hopping
Abstract We study deterministic power-law quantum hopping model with an amplitude J ( r ) ∝ − r − β and local Gaussian disorder in low dimensions d = 1 , 2 under the condition d β 3 d ∕ 2 . WeExpand
Non-Anderson critical scaling of the Thouless conductance in 1D
We propose and investigate numerically a one-dimensional model which exhibits a non-Anderson disorder-driven transition. Such transitions have recently been attracting a great deal of attention inExpand
Quantum breakdown of superconductivity in low-dimensional materials
In order to understand the emergence of superconductivity it is useful to study the reverse process and identify the various pathways that lead to its destruction. One way is to increase the amountExpand


Europhysics Letters 107
  • 47008
  • 2014
Colloquium : Anomalous metals: Failed superconductors
The observation of metallic ground states in a variety of two-dimensional electronic systems poses a fundamental challenge for the theory of electron fluids. Here, we analyze evidence for theExpand
Physical Review B 99
  • 104203
  • 2019
  • Mod. Phys. 91, 011002
  • 2019
50 %
This Diploma Supplement model was developed by the European Commission, Council of Europe and UNESCO/CEPES. The purpose of the supplement is to provide sufficient independent data to improve theExpand
Duality in Power-Law Localization in Disordered One-Dimensional Systems.
This model is an example of a new universality class of models with power-law hopping, characterized by a duality between systems with long-range hops and short-range hopping, in which the wave function amplitude falls off algebraically with the same power γ from the localization center. Expand
Physical Review Letters 120
  • 110602
  • 2018
Strong disorder RG approach – a short review of recent developments
Abstract The strong disorder RG approach for random systems has been extended in many new directions since our previous review of 2005 [F. Igloi, C. Monthus, Phys. Rep. 412, 277 (2005)]. The aim ofExpand
Physical Review B 91
  • 035133
  • 2015
Physical Review B 92
  • 014506
  • 2015