Dynamical Conductivity across the Disorder-Tuned Superconductor-Insulator Transition

Swanson, Mason; Loh, Yen Lee; Randeria, Mohit; Trivedi, Nandini

doi:10.1103/PhysRevX.4.021007

Title: Dynamical Conductivity across the Disorder-Tuned Superconductor-Insulator Transition

Full Record
Other Related Research

Authors:: Swanson, Mason; Loh, Yen Lee; Randeria, Mohit; Trivedi, Nandini

Publication Date:: Wed Apr 09 00:00:00 EDT 2014

Sponsoring Org.:: USDOE

OSTI Identifier:: 1177833

Grant/Contract Number:: FG02-07ER46423

Resource Type:: Published Article

Journal Name:: Physical Review X

Additional Journal Information:: Journal Volume: 4; Journal Issue: 2; Journal ID: ISSN 2160-3308

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Swanson, Mason, Loh, Yen Lee, Randeria, Mohit, and Trivedi, Nandini. Dynamical Conductivity across the Disorder-Tuned Superconductor-Insulator Transition.  United States: N. p., 2014. 
Web.  doi:10.1103/PhysRevX.4.021007.

Copy to clipboard


                    Swanson, Mason, Loh, Yen Lee, Randeria, Mohit, & Trivedi, Nandini. Dynamical Conductivity across the Disorder-Tuned Superconductor-Insulator Transition.  United States.  https://doi.org/10.1103/PhysRevX.4.021007

Copy to clipboard


                    Swanson, Mason, Loh, Yen Lee, Randeria, Mohit, and Trivedi, Nandini. Wed .  
"Dynamical Conductivity across the Disorder-Tuned Superconductor-Insulator Transition".  United States.  https://doi.org/10.1103/PhysRevX.4.021007.

Copy to clipboard


                    
@article{osti_1177833,

  title        = {Dynamical Conductivity across the Disorder-Tuned Superconductor-Insulator Transition},

  author       = {Swanson, Mason and Loh, Yen Lee and Randeria, Mohit and Trivedi, Nandini},

  abstractNote = {},

  doi          = {10.1103/PhysRevX.4.021007},

  journal      = {Physical Review X},

  number       = 2,

  volume       = 4,

  place        = {United States},

  year         = {Wed Apr 09 00:00:00 EDT 2014},

  month        = {Wed Apr 09 00:00:00 EDT 2014}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Publisher's Version of Record
https://doi.org/10.1103/PhysRevX.4.021007

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 54 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Local spectroscopies across the superconductor-insulator transition

Journal Article Khan, Hasan ; Trivedi, Nandini - Physical Review B

We explore the manifestation of quantum fluctuations across the superconductor-insulator transition (SIT) in three different local measurements: the two-particle density of states P(r,ω), compressibility κ(r), and diamagnetic susceptibility χ(r) revealed through their local maps. The map of χ(r) displays growing fluctuations upon increasing temperature as well as upon tuning the quantum tuning parameter g , as expected, but remarkably, these fluctuations persist well below T_c as the SIT is approached, indicating the quantum nature of these fluctuations. Here, the map of κ(r) paints a similar picture when tuned via g, but in contrast to χ(r), we find a fundamental differencemore »« less
Cited by 1
https://doi.org/10.1103/physrevb.99.144516

Full Text Available
Superconductor-Insulator Transition and Fermi-Bose Crossovers

Journal Article Loh, Yen Lee ; Randeria, Mohit ; Trivedi, Nandini ; ... - Physical Review. X

The direct transition from an insulator to a superconductor (SC) in Fermi systems is a problem of long-standing interest, which necessarily goes beyond the standard BCS paradigm of superconductivity as a Fermi surface instability. We introduce here a simple, translationally invariant lattice fermion model that undergoes a SC-insulator transition (SIT) and elucidate its properties using analytical methods and quantum Monte Carlo simulations. We show that there is a fermionic band insulator to bosonic insulator crossover in the insulating phase and a BCS-to-BEC crossover in the SC. The SIT is always found to be from a bosonic insulator to a BEC-likemore »« less
Cited by 23
https://doi.org/10.1103/PhysRevX.6.021029
Magnetic field tuned superconductor-to-insulator transition at the ${LaAlO}_{3}$ / ${SrTiO}_{3}$ interface

Journal Article Mehta, M. M. ; Dikin, D. A. ; Bark, C. W. ; ... - Physical Review B
Cited by 9
https://doi.org/10.1103/PhysRevB.90.100506
Universal conductivity of two-dimensional films at the superconductor-insulator transition

Journal Article Cha, M ; Fisher, M P.A. ; Girvin, S M ; ... - Physical Review, B: Condensed Matter; (United States)

The zero-temperature universal conductivity of two-dimensional (2D) films at the supeconductor-insulator transition is studied. The existence of a finite conductivity at {ital T}=0 and the universality class for this transition is discussed. Neglecting disorder as a first approximation, so the transition is from a commensurate Mott-Hubbard insulator to a superconductor, we calculate analytically the universal conductivity for the 2D pure boson Hubbard model up to the first order in a large-{ital N} expansion and numerically by Monte Carlo simulation of the (2+1)-D {ital XY} model. From the Monte Carlo results we find the universal conductivity to be {sigma}{sup *}=(0.285{plus minus}0.02){sigma}{submore »« less
https://doi.org/10.1103/PhysRevB.44.6883
Universal conductivity of dirty bosons at the superconductor-insulator transition

Journal Article Sorensen, E S ; Wallin, M ; Girvin, S M ; ... - Physical Review Letters; (United States)

The superconductor-insulator transition at zero temperature in two dimensions is studied by Monte Carlo simulations of interacting bosons (Cooper pairs) moving in a quenched random potential. We calculate the universal conductivity {sigma}{sup *} and the critical exponents at the superconductor-insulator transition. For the short-range repulsive case we find {sigma}{sup *}=(0.14{plus minus}0.03){sigma}{sub {ital Q}}, where {sigma}{sub {ital Q}}{sup {minus}1}=={ital R}{sub {ital Q}} =={ital h}/(2{ital e}){sup 2}{congruent}6.45{ital k}{Omega}, and for long-range Coulomb interactions we find {sigma}{sup *}=(0.55{plus minus}0.1){sigma}{sub {ital Q}}.
https://doi.org/10.1103/PhysRevLett.69.828

Similar Records