title: Tunneling spectroscopy in small grains of superconducting MgB(2).
abstract: We report on tunneling spectroscopy experiments in small grains of the new binary intermetallic superconductor MgB(2). Experiments have been performed at 2.5 K using a low temperature scanning tunneling microscope. Good fit to the BCS model is obtained, with a gap value of 2 meV. In the framework of this model, this value should correspond to a surface critical temperature of 13.2 K. No evidence of gap anisotropy has been found.
authors: Laboratorio de Bajas Temperaturas, Departamento Física de la Materia Condensada C-III, Instituto Universitario de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
authors: G
authors: G
authors: Rubio-Bollinger
authors: H
authors: H
authors: Suderow
authors: S
authors: S
authors: Vieira