We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Magnetic Field-Dependent Magneto-Optical Kerr Effect in [(GeTe)(SbTe)] Topological Superlattice.
- Authors
Bang, Do; Awano, Hiroyuki; Saito, Yuta; Tominaga, Junji
- Abstract
We studied the magnetic field dependence of magneto-optical Kerr rotation of the [(GeTe)/(SbTe)] topological superlattice at different temperatures (from 300 K to 440 K). At low temperatures (less than 360 K), the Kerr signal was within noise level. However, large Kerr rotation peaks with a mirror symmetric loop were at high temperatures (higher than 360 K). The temperature dependence of the observed Kerr signal can be attributed to the breaking of spatial inversion symmetry, which induces a narrow gap in surface state bands due to the Ge atomic layer movement-induced phase transition in the superlattice. We found that the resonant field of each Kerr peak gradually decreases with increasing temperature. On the other hand, the phase transition from a high temperature phase to a low temperature one could be controlled by external magnetic fields.
- Subjects
KERR magneto-optical effect; METALLIC superlattices; ATOMIC layer deposition; ATOMS in external magnetic fields; PHASE transitions
- Publication
Journal of Electronic Materials, 2016, Vol 45, Issue 5, p2496
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-016-4389-5