Isotope effect for the penetration depth in superconductors
A. Bill, V. Z. Kresin, S. A. Wolf
DOI 10.1103/PhysRevB.57.10814 · 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 show that various factors can lead to an isotopic dependence of the penetration depth δ. Nonadiabaticity (Jahn-Teller crossing) leads to the isotope effect of the charge-carrier concentration n and, consequently, of δ in doped superconductors such as the cuprates. A general equation relating the isotope coefficients of Tc and of δ is presented for London superconductors. We further show that the presence of magnetic impurities or a proximity contact also lead to an isotopic dependence of δ; the isotope coefficient turns out to be temperature dependent, β(T), in these cases. The existence of the isotope effect for the penetration depth is predicted for conventional as well as for high-temperature superconductors. Various experiments are proposed and/or discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Isotope Effects in Underdoped Cuprate Superconductors: A Quantum Critical Phenomenon
similarity 0.97T. Schneider & H. Keller
Source status unknown — claims are unverified
Intrinsic and structural isotope effects in iron-based superconductors
similarity 0.97R. Khasanov et al.
Source status unknown — claims are unverified
Test of first-principle calculations of charge transfer and electron-hole distribution in oxide superconductors by precise measurements of structure factors
similarity 0.96Lijun Wu et al.
Source status unknown — claims are unverified
Zero-Point Motion and the Isotope Effect in Oxide Superconductors
similarity 0.96Daniel S. Fisher et al.
Source status unknown — claims are unverified
Effect of fluctuations on the transport properties of type-II superconductors in a magnetic field
similarity 0.96Salman Ullah & Alan T. Dorsey
Source status unknown — claims are unverified
Absence of an isotope effect in the magnetic resonance in high-Tc superconductors
similarity 0.96S. Pailhès et al.
Source status unknown — claims are unverified