Effect of picosecond strain pulses on thin layers of the ferromagnetic semiconductor (Ga,Mn)(As,P)
| Autor: | M. Cubukcu, S. Vincent, Christophe Testelin, E. Charron, Catherine Gourdon, Laura Thevenard, Emmanuel Péronne, Aristide Lemaître, Bernard Perrin |
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| Přispěvatelé: | Institut des Nanosciences de Paris (INSP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Cofinancé par le contrat IF07-800/R C'Nano IdF. |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Materials science
Kerr effect FOS: Physical sciences 01 natural sciences 010305 fluids & plasmas Magnetic semiconductors symbols.namesake Magnetization Condensed Matter::Materials Science Optics 0103 physical sciences Faraday effect 010306 general physics 75.50.Pp 62.65.+k 78.47.D- 78.20.Ls Condensed Matter - Materials Science Thin layers Condensed matter physics business.industry Materials Science (cond-mat.mtrl-sci) Magnetic semiconductor Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field Condensed Matter - Other Condensed Matter Acoustic propreties of solid Amplitude Picosecond techniques Picosecond symbols [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Faraday rotation business Other Condensed Matter (cond-mat.other) |
| Zdroj: | Physical Review B: Condensed Matter and Materials Physics (1998-2015) Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2010, 82 (10), ⟨10.1103/PhysRevB.82.104422⟩ Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2010, 82 (10), ⟨10.1103/PhysRevB.82.104422⟩ |
| ISSN: | 1098-0121 1550-235X |
| DOI: | 10.1103/PhysRevB.82.104422⟩ |
| Popis: | The effect of picosecond acoustic strain pulses (ps-ASP) on a thin layer of (Ga,Mn)As co-doped with phosphorus was probed using magneto-optical Kerr effect (MOKE). A transient MOKE signal followed by low amplitude oscillations was evidenced, with a strong dependence on applied magnetic field, temperature and ps-ASP amplitude. Careful interferometric measurement of the layer's thickness variation induced by the ps-ASP allowed us to model very accurately the resulting signal, and interpret it as the strain modulated reflectivity (differing for $\sigma_{\pm}$ probe polarizations), independently from dynamic magnetization effects. Comment: 6 pages, 5 figures |
| Databáze: | OpenAIRE |
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