The magnetic behaviour of sputtered Py5nm/Cut/Co5nm films on glass, Si(100), and Si(111) was studied by measurements of the transverse, longitudinal, polar magneto-resistance, and the magneto-optical Kerr effect (MOKE). The sample can be rotated about its surface normal to obtain angular dependent information during the MOKE measurement. All specimens have non-vanishing normal component of magnetization as revealed by MR with field applied normal to the film and confirmed by polar MOKE. Spin valve MR with very small coercivity is observed as t is increased. The minor R-H curve shows two states at zero magnetic field, which is desirable for MRAM application. An increase in the periodicity number increases the MR ratio, but also, significantly, the coercivity.
|Number of pages||6|
|Journal||Materials Research Society Symposium - Proceedings|
|State||Published - 1 Dec 1998|
|Event||Proceedings of the 1998 MRS Spring Symposium - San Francisco, CA, USA|
Duration: 13 Apr 1998 → 15 Apr 1998