Static and Dynamic Spin Organization in Magnetic Semiconductor Nanostructures |
| N. Samarth, H. Luo, J.K. Furdyna, T.M. Giebultowicz Department of Physics, University of Notre Dame, Notre Dame IN 46556, USA and D.D. Awschalom Department of Physics, University of California, Santa Barbara CA 93106, USA |
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| We describe experiments which study static and dynamic aspects of Mn spin organization in magnetic semiconductor superlattices and quantum wells. Neutron diffraction studies of ZnSe/MnSe and ZnTe/MnSe superlattices show how static Mn spin organization in these antiferromagnetic layers may be modified by strain and lowered dimensionality. We also use a novel form of femtosecond magnetic spectroscopy to examine magnetic polaron dynamics in diluted magnetic semiconductor quantum wells, and show how the organization of Mn spins by a spin-polarized carrier population may be directly viewed in the time domain. |
| DOI: 10.12693/APhysPolA.82.573 PACS numbers: 75.50.Ppa, 75.25.+z |