Tunneling spectroscopy in small grains of superconducting MgB(2)

• Published in: Physical review letters Vol. 86; no. 24; p. 5582
• Main Authors: Rubio-Bollinger, G, Suderow, H, Vieira, S
• Format: Journal Article
• Language: English
• Published: United States 11.06.2001

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...