Point-contact function of the electron-phonon interaction in zirconium

N. L. Bobrov; L. F. Rybaltchenko; V. V. Fisun; A. V. Khotkevich

doi:10.1063/1.4963330

paper

Point-contact function of the electron-phonon interaction in zirconium

arXiv:1612.03396 · doi:10.1063/1.4963330

Abstract

Experimental study of the electron-phonon interaction (EPI) spectra of zirconium was carried out using Yanson's point-contact (PC) spectroscopy. The EPI spectral function and constant were determined. Both homocontacts ( $Z r - Z r$ ) and heterocontacts ( $Z r - C u$ , $Z r - A g$ , and $Z r - A u$ ) were studied. No contribution by copper, silver or gold to the heterocontact spectra was detected. The positions of five phonon features of the EPI function were observed at energies 5-6, 9-11, 13-15, 18-20, and 27-29 $m e V$ . The observed diversity of the PC spectra was attributed to the anisotropy of $Z r$ . pacs{71.38.-k, 73.40.Jn, 74.25.Kc, 74.45.+c}

8 pages, 9 figures