Resistivity anomaly in thin Bi wires: Possibility of a one-dimensional quantum size effect

✍ Scribed by Michael Gurvitch

• Publisher: Springer US
• Year: 1980
• Tongue: English
• Weight: 768 KB
• Volume: 38
• Category: Article
• ISSN: 0022-2291
• DOI: 10.1007/bf00115503

✦ Synopsis

Thin Bi single-crystal wires down to -0.2 ~m in diameter were prepared by pressing liquid Bi into fine Pyrex capillaries. Electron microphotographs were taken to determine the diameter of the wires. Anisotropic magnetoresistance together with Shubnikov-de Haas oscillations were observed at helium temperatures. An anomalous drop in resistivity p(T) was found at T < 50 K. Possible explanations are considered, including one based on the quantum size effect.