Thickness-Magnetic Field Phase Diagram at the Superconductor-Insulator Transition in 2D

Abstract

The superconductor-insulator transition in ultrathin films of amorphous Bi was tuned by changing the film thickness, with and without an applied magnetic field. The first experimentally obtained phase diagram is mapped as a function of thickness and magnetic field in the T=0 limit. A finite size scaling analysis has been carried out to determine the critical exponent product vz, which was found to be 1.2 for the zero field transition, and 1.4 for the finite field transition. Both results are different from the exponents found for the magnetic field tuned transition in the same system, 0.7.

4 pages, 4 figures

References in corpus (11)

• Continuous Quantum Phase Transitions
• Strong-coupling expansions for the pure and disordered bose Hubbard model
• Non-zero temperature transport near quantum critical points
• The superconductor-insulator transition in 2D dirty boson systems
• Transport Through Quantum Melts
• Superconductor-Insulator Transition in a Disordered Electronic System
• Revisiting the Theory of Finite Size Scaling in Disordered Systems: νCan Be Less Than 2/d
• Bose glass and Mott insulator phase in the disordered boson Hubbard model
• Universal conductivity in the boson Hubbard model in a magnetic field
• Evidence of Vortices on the Insulating Side of the Superconductor-Insulator Transition
• Dual superfluid-Bose glass critical point in two dimensions and the universal conductivity

Cited by in corpus (54)

• Superconductivity-Related Insulating Behavior
• Experimental evidence for a collective insulating state in two-dimensional superconductors
• Detection of a superconducting phase in a two-atom layer of hexagonal Ga film grown on semiconducting GaN(0001)
• Two-stage magnetic-field-tuned superconductor-insulator transition in underdoped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Magnetic-Field-Driven Superconductor-Insulator-Type Transition in Graphite
• Magnetic field-induced quantum superconductor-insulator transition in $N{b}_{0.15}S{i}_{0.85}$
• Superinsulator-Superconductor Duality in Two Dimensions
• The Field-Tuned Superconductor-Insulator Transition with and without Current Bias
• Infrared Studies of the Onset of Conductivity in Ultra-Thin Pb Films
• Self Duality and a possible Hall-insulator phase near the superconductor-to-insulator transition in two-dimensional indium-oxide films
• Electrostatic- and Parallel Magnetic Field- Tuned Two Dimensional Superconductor-Insulator Transitions
• Absence of Metal-Insulator-Transition and Coherent Interlayer Transport in oriented graphite in parallel magnetic fields
• Nernst effect as a probe of superconducting fluctuations in disordered thin films
• Composite fermions and the field-tuned superconductor-insulator transition
• Bose-glass to Superfluid transition in the three-dimensional Bose-Hubbard Model
• Disorder-Driven Loss of Phase Coherence in a Quasi-2D Cold Atom System
• Thickness-tuned Superconductor-to-Insulator Transitions under magnetic field in a-NbSi
• Observation of Critical Amplitude Fluctuations near the Two Dimensional Superconductor-Insulator Transition
• Quantum Critical Scaling of Dirty Bosons in Two Dimensions
• Upper critical field and superconductor-metal transition in ultrathin niobium films
• Anisotropic Magnetoconductance in Quench-Condensed Ultrathin Beryllium Films
• Effect of annealing on the superconducting properties of a-Nb(x)Si(1-x) thin films
• The Generic, Incommensurate Transition in the two-dimensional Boson Hubbard Model
• Quantum criticality at the superconductor insulator transition probed by the Nernst effect
• Pair-breaking quantum phase transition in superconducting nanowires
• Quantum Monte Carlo study of a magnetic-field-driven 2D superconductor-insulator transition
• XY* transition and extraordinary boundary criticality from fractional exciton condensation in quantum Hall bilayer
• Superconductor-insulator transitions in three-dimensional indium-oxide at high pressures
• Quantum phase transitions in two-dimensional systems
• Electron Quasiparticles Drive the Superconductor-to-Insulator Transition in Homogeneously Disordered Thin Films
• Electric Field Effect in Ultrathin Films near the Superconductor-Insulator Transition
• Size dependent nature of the magnetic-field driven superconductor-to-insulator quantum-phase transitions
• Theory of coherent phase modes in insulating Josephson junction arrays
• Quantum phase transition in two-dimensional NbN superconducting thin films
• Efect of magnetic Gd impurities on superconductivity in MoGe films with different thickness and morphology
• Disorder Influences the Quantum Critical Transport at a Superconductor to Insulator Transition
• Magnetic-field induced superconductor-metal-insulator transitions in bismuth metal-graphite
• Robust Quantum Griffiths Singularity at above 1.5 Kelvin in Nitride Thin Films
• Sequential superconductor-Bose insulator-Fermi insulator phase transitions in two-dimensional a-WSi
• Tunneling probe of fluctuating superconductivity in disordered thin films
• Destruction of superconductivity in disordered materials : a dimensional crossover
• Insulating Phase in Two-dimensional Josephson-Junction Arrays Investigated by Nonlinear Transport
• Magnetoresistance Anisotropy in Amorphous Superconducting Thin Films: A Site-Bond Percolation Approach
• Disorder and magnetic field induced Bose-metal state in two-dimensional Ta${}_x$(SiO${}_2$)${}_{1-x}$ granular films
• Vortex dynamics and upper critical fields in ultrathin Bi films
• Quantum criticality and multiple crossing points in the magnetoresistance of thin TiN-films
• Structural properties and magnetoresistance of La${}_{1.952}$Sr${}_{0.048}$CuO${}_4$ thin films
• Numerical analysis of the magnetic-field-tuned superconductor-insulator transition in two dimensions
• Localization of non-interacting electrons in thin layered disordered systems
• Mixed (1D-2D) quantum electron transport in percolating gold film
• Vortices and the mixed state of ultrathin Bi films
• FFLO oscillations and magnetic domains in the Hubbard model with off-diagonal Coulomb repulsion
• Observation of Distinct Superconducting Phases in Hyperdoped p-type Germanium
• Multiple Quantum Phase Transitions at the superconducting LaTiO3/SrTiO3 interface