Femtosecond room-temperature measurement of the electron-phonon coupling constant γ in metallic superconductors
S. D. Brorson, A. Kazeroonian, J. S. Moodera, D. W. Face, T. K. Cheng, E. P. Ippen, M. S. Dresselhaus, G. Dresselhaus
DOI 10.1103/PhysRevLett.64.2172 · Physical Review Letters
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 report the first systematic femtosecond pump-probe measurements of the electron-phonon coupling constant λ in thin films of Cu, Au, Cr, Ti, W, Nb, V, Pb, NbN, and V3Ga. The agreement between our measured λ values and those obtained by other techniques is excellent, thus confirming recent theoretical predictions of Allen. By depositing thin Cu overlayers when necessary, we can extend this technique to nearly any metallic thin film.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Cu Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Au Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Cr Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Ti Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| NbN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| V3Ga Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Confinement effects on electron and phonon degrees of freedom in nanofilm superconductors: A Green function approach
similarity 0.94R. Saniz et al.
Source status unknown — claims are unverified
Magnetic-flux quanta in superconducting thin films observed by electron holography and digital phase analysis
similarity 0.94Shuji Hasegawa et al.
Source status unknown — claims are unverified
Tunneling probe of fluctuating superconductivity in disordered thin films
similarity 0.93David Dentelski et al.
Source status unknown — claims are unverified
Transport properties of semiconductor-superconductor junctions in quantizing magnetic fields
similarity 0.93Y. Takagaki
Source status unknown — claims are unverified
High-Cooperativity Coupling of Rare-Earth Spins to a Planar Superconducting Resonator
similarity 0.93Sihao Wang et al.
Source status unknown — claims are unverified
Effects of scattering on the field-induced Tc enhancement in thin superconducting films in a parallel magnetic field
similarity 0.93V. G. Kogan & R. Prozorov
Source status unknown — claims are unverified