|Table of Contents|

The Superconductivity in MgB2 Film(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2008年01期
Page:
58-61
Research Field:
物理学
Publishing date:

Info

Title:
The Superconductivity in MgB2 Film
Author(s):
Zhu Jingbo; Huang Guiqin
School of Physical Science and Technology, Nanjing Normal University, Nanjing 210097, China
Keywords:
M gB2 film;  electron-phonon interaction;  density- functional pe rturba tion theory
PACS:
O484.4
DOI:
-
Abstract:
U sing pseudopo tential m ethod, the e lec tron ic struc ture ofM gB2 film is stud ied. It is found that the density o f sta tes at the Ferm i level o f the surface B atom has large enhancem ent. U sing the dens ity- functional perturbation theo ry by the linea r responsem ethod, the lattice dynam ics and the electron-phonon interaction o fM gB2 film are studied. The v-i brational frequenc ies at the # po in t o fM gB2 film are ana ly zed. The results show that the phonons in the film becom e soft, and th is softness increases the electron-phonon interaction, resu lting in the enhancem ent of the superconductiv ity o f M gB2 film.

References:

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Last Update: 2013-05-05