✦ LIBER ✦
Giant magnetoresistance caused by magnetic-field-sensitive resonant tunnelling in a random multibarrier semiconductor superlattice
✍ Scribed by S.-J. Xiong; S.-Z. Yu
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 100 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0749-6036
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✦ Synopsis
By using a transmission probability formalism, we perform a calculation for the conductance related to the tunnelling of electrons through a semiconductor multibarrier superlattice with special thickness randomness in the presence of a magnetic field. Because of the sharp resonance of the tunnelling in such a structure, the current is highly sensitive to the variation of the in-plane magnetic field. The calculated results show a giant magnetoresistance even for small strength of the field. Possible applications of this effect are discussed.