Abstract
Magnetoconductance characteristics are measured for multiple parallel ballistic point contacts placed within the electron mean free path. A large conductance decrease is observed for such structures in a low magnetic field, where electron motion completes ballistic circulating through pairs of contacts. Activation of these circulating channels depopulates the current-carrying channels in multiple parallel ballistic point contacts. Conductance oscillations are also observed due to the interference effect in the circulating channels.
| Original language | English |
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| Pages (from-to) | 11408-11411 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 42 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - 1990 |