Effects of an electrostatic field on the normal and superconducting states of a Mo-C film
Seongjae Lee, Kyoung Wan Park, Mincheol Shin, El-Hang Lee, Kijoon Kim, Nam Kim, Hu Jong Lee, Soon Cheol Hong
DOI 10.1103/PhysRevB.51.3238 · 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 have observed the effects of a large electrostatic field on a 30-Å-thick Mo-C film, both in the normal and the superconducting states. In the normal state, field-induced negative charging of the surface layer enhanced the electrical conduction with the field effect mobility 2.2 cm2/V s and the conduction-electron density 1.5×1022 cm−3. In the superconducting state, however, it hindered the conduction, thus reducing the superconducting transition temperature. This behavior is interpreted in terms of the BCS theory and the surface band bending, which is supported by the band calculation result of the density of states.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Mo-C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.682 | Pressure not reported | midpoint |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Resistive behavior of high-Tc superconductors: Influence of a distribution of activation energies
similarity 0.96R. Griessen
Source status unknown — claims are unverified
Increase of the critical current by an external electric field in high-temperature superconductors
similarity 0.95L. Burlachkov et al.
Source status unknown — claims are unverified
Combined experimental and theoretical study of field and current conditioning in magnetically shielded superconducting films
similarity 0.95Ch. Jooss et al.
Source status unknown — claims are unverified
Superconductivity of one-unit-cell thick YBa2Cu3O7 thin film
similarity 0.95T. Terashima et al.
Source status unknown — claims are unverified
Superconducting transport properties of grain boundaries in YBa2Cu3O7 bicrystals
similarity 0.95D. Dimos et al.
Source status unknown — claims are unverified
Nonmonotonic resistivity transitions in granular superconducting ceramics
similarity 0.95A. Gerber et al.
Source status unknown — claims are unverified