Magnetotransport in a semconductor superlattice with transverse magnetic field

✍ Scribed by Bagun S. Shchamkhalova; Robert A. Suris

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 136 KB
• Volume: 17
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1006/spmi.1995.1028

✦ Synopsis

Magnetotransport in a semiconductor superlattice (SL) under transverse magnetic field has been investigated. It is shown that in weak magnetic and electric fields there is negative magnetoresistivity along the SL layers and positive magnetoresistivity along the SL axis. The Hall resistivity is much less than the usual semiconductor value. With an increase of electric field, there appears a negative differential conductivity (NDC) along the SL layers, and the Hall voltage depends nonlinearly on current density. In higher electric field, destroying the miniband structure, the magnetoresistivity along the SL axis is negative. The magnetoresistivity along the SL axis in strong magnetic field is positive for any current density. The Hall resistivity in strong magnetic (electric) field equals the classical value.