We theoretically study the electron transport through a magnetic point contact (PC) with special attention given to the effect of an atomic scale domain wall (DW). The spin precession of a conduction electron is forbidden in such an atomic scale DW and the sequence of quantized conductances depends on the relative orientation of magnetizations between left and right electrodes. The magnetoresistance is strongly enhanced for the narrow PC and oscillates with the conductance.
|Number of pages||4|
|Journal||Physical review letters|
|Publication status||Published - 2000 Jan 31|
ASJC Scopus subject areas
- Physics and Astronomy(all)