We have studied the magneto-optic Kerr effect (MOKE) and static magnetic properties of MnGeAs2 films grown by using molecular beam epitaxy (MBE) and prepared in different arsenic ambiences. Both reflection high energy electron diffraction (RHEED) and 0-29 X-ray diffraction confirm epitaxial growth. We have observed the As pressure dependency in MOKE hysteresis and a well-defined rectangular MOKE hysteresis in the film grown at a 1.8 x 10-6 Torr As pressure. These As pressure dependent magnetic properties are related to defects in the MnGeAs2 films.
ASJC Scopus subject areas
- Physics and Astronomy(all)