Phonon structure in tunneling conductance as a possible key to the mechanism of high-Tc superconductivity

A. I. Dyachenko; Vladimir M. Svistunov

doi:10.1117/12.241750

10 June 1996 Phonon structure in tunneling conductance as a possible key to the mechanism of high-T_c superconductivity

A. I. Dyachenko, Vladimir M. Svistunov

Proceedings Volume 2696, Spectroscopic Studies of Superconductors; (1996) https://doi.org/10.1117/12.241750
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

An influence of anisotropy on phonon structure in d²I/dV²(V) curve was examined by direct solving of the Eliashberg equations. The studies include the s- and d-types of pairing symmetry as well as scattering on impurities. As is revealed the phonon structure in the second derivative remains isotropic and should be found at eV equals $HBAR(omega) plus <(Delta) > where (omega) is the phonon frequency and the effective gap <(Delta) > is close to the maximum value of (Delta) (k) in the case of strong anisotropy of energy gap (Delta) (k). The smearing of phonon structure could be taken into account by using a complex gap function (Delta) ((omega) +i(Gamma) ) in the Dynes' formula. The influence of the localized states on the phonon structure in d²I/dV² is discussed.

Citation Download Citation

A. I. Dyachenko and Vladimir M. Svistunov "Phonon structure in tunneling conductance as a possible key to the mechanism of high-T_c superconductivity", Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); https://doi.org/10.1117/12.241750

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available