3 papers
cond-mat.supr-con2004
Point-contact spectroscopy of magnesium diboride with different counter-electrodes
A. I. D'yachenko, V. Yu. Tarenkov, M. A. Belogolovskii +3
We report on tunneling and Andreev-reflection conductance spectra of 39 K superconducting magnesium diboride, obtained with Pb and Au counter-electrodes. Two distinct steps at clos…
cond-mat.supr-con2002
ab-plane tunneling and Andreev spectroscopy of superconducting gap and pseudogap in (Bi,Pb)2Sr2Ca2Cu3O10 and Bi2Sr2CaCu2O8
A. I. D'yachenko, V. Yu. Tarenkov, R. Szymczak +4
We have measured the temperature dependence of gap features revealed by Andreev reflection Delta_s and by tunneling Delta in the ab-plane of optimal and slightly overdoped microcry…
cond-mat.supr-con2002
Evidence of strong electron-phonon interaction in superconducting MgB from electron tunneling
A. I. D'yachenko, V. Yu. Tarenkov, A. V. Abal'oshev +1
We report tunneling measurements of the electron-phonon (e-ph) interaction in superconducting MgB using the MgB-I-Nb junctions, where I stands for insulator. The phonon str…