Linear temperature dependence of the upper critical field across the dome of the LaAlO3−SrTiO3 interface superconductor
L. Kuerten, E. Fillis-Tsirakis, C. Richter, J. Mannhart, H. Boschker
DOI 10.1103/PhysRevB.98.054509 · 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
Numerous two-dimensional superconductors exhibit a characteristic dome-shaped dependence of the critical temperature Tc on the carrier density. The reduction of the critical temperature with increasing charge carrier density on the overdoped side of this dome is frequently related to scattering arising from conduction in multiple bands. Multiband superconductivity can be resolved by tunneling spectroscopy, but the interpretation of spectroscopic data can be ambiguous. Superconductivity in multiple bands is also expected to affect the temperature dependence of the upper critical field Hc2 of the superconductor. We have therefore measured the temperature dependence of Hc2 across the dome of the LaAlO3−SrTiO3 interface superconductor and found Hc2(T) to be linear across the entire dome. This result places constraints on scenarios of multiband pairing in this interface superconductor.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| LaAlO3-SrTiO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.27 | Pressure not reported | midpoint |
| LaAlO3-SrTiO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.3 | Pressure not reported | unknown |
Similar papers
Electrostatically-tuned superconductor-metal-insulator quantum transition at the LaAlO3/SrTiO3 interface
similarity 0.96T. Schneider et al.
Source status unknown — claims are unverified
Link between the Superconducting Dome and Spin-Orbit Interaction in the (111) LaAlO3/SrTiO3 Interface
similarity 0.95P. K. Rout et al.
Source status unknown — claims are unverified
Magnetic and superconducting phases at the LaAlO3/SrTiO3 interface: The role of interfacial Ti 3d electrons
similarity 0.95N. Pavlenko et al.
Source status unknown — claims are unverified
Correlation between superconductivity, band filling, and electron confinement at the LaAlO3/SrTiO3 interface
similarity 0.94A. E. M. Smink et al.
Source status unknown — claims are unverified
Local electronic structure of the superconducting interface LaAlO3/SrTiO3
similarity 0.94Bin Liu & Xiao Hu
Source status unknown — claims are unverified
Fermionic boundary modes in two-dimensional noncentrosymmetric superconductors
similarity 0.94K. V. Samokhin & S. P. Mukherjee
Source status unknown — claims are unverified