Double reentrant superconductor-insulator transition in thin TiN films
N. Hadacek, M. Sanquer, J.-C. Villégier
DOI 10.1103/PhysRevB.69.024505 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We studied the superconductor-insulator transition in very thin films of TiN (and NbN) at very low temperature (T=35mK) as a function of sheet resistance and magnetic field. The critical temperature dependence versus sheet resistance follows the Finkel’stein theory for homogeneous films. A TiN sample very close to the critical point exhibits a double reentrant behavior below T=150mK as the magnetic field increases. At large magnetic field and very low temperature a negative magnetoresistance is observed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| TiN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.7 | Pressure not reported | unknown |
| NbN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 16 | Pressure not reported | unknown |
Similar papers
Electrodynamic response and local tunneling spectroscopy of strongly disordered superconducting TiN films
similarity 0.95P. C. J. J. Coumou et al.
Source status unknown — claims are unverified
Onset of a superconductor-insulator transition in an ultrathin NbN film under in-plane magnetic field studied by terahertz spectroscopy
similarity 0.95M. Šindler et al.
Source status unknown — claims are unverified
Surface versus bulk superconductivity in NbN thin films under magnetic fields
similarity 0.94Mikhail Belogolovskii et al.
Source status unknown — claims are unverified
Energy-Gap Dynamics of Superconducting NbN Thin Films Studied by Time-Resolved Terahertz Spectroscopy
similarity 0.94M. Beck et al.
Source status unknown — claims are unverified
Nonlinear electrodynamics of superconducting NbN and Nb thin films at microwave frequencies
similarity 0.94C. C. Chin et al.
Source status unknown — claims are unverified
Proximity-induced superconducting gap in the intrinsic magnetic topological insulator MnBi2Te4
similarity 0.94Wen-Zheng Xu et al.
Source status unknown — claims are unverified