Magneto-optic Kerr Effect and Magnetic Properties of Ferromagnetic Semiconducting MnGeAS(2) Thin Films

作者：Choi Jeongyong^*; Feng Wuwei; Cho Sunglae; Mu Weiqiang; Ketterson J B; Tsai C C

来源：Journal of the Korean Physical Society, 2009, 55(1): 144-148.

DOI：10.3938/jkps.55.144

• MOKE
• DMS

We have studied the magneto-optic Kerr effect (MOKE) and static magnetic properties of MnGeAS(2) films grown by using molecular beam epitaxy (MBE) and prepared in different arsenic ambiences. Both reflection high energy electron diffraction (RHEED) and theta-2 theta 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 MnGeAS(2) films.

• 出版日期2009-7
• 单位西北大学