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Magnetotransport effects in lateral and vertical ferromagnetic semiconductor junctions

Magnetotransport Effekte in lateralen und vertikalen ferromagnetischen Halbleiterdioden

Zitieren Sie bitte immer diese URN: urn:nbn:de:bvb:20-opus-15554
  • Diese Arbeit enthält Untersuchungen von Magnetowiderstandseffekten in (Ga,Mn)As basierten ferromagnetischen Halbleiterdioden. Die Resultate wurden in den folgenden Artikeln veröffentlicht: [1] C. Rüster, T. Borzenko, C. Gould, G. Schmidt, L.W. Molenkamp, X. Liu, T.J.Wojtowicz, J.K. Furdyna, Z.G. Yu and M. Flatt´e, Very Large Magnetoresistance in Lateral Ferromagnetic (Ga,Mn)As Wires with Nanoconstrictions, Physical Review Letters 91, 216602 (2003). [2] C. Gould, C. Rüster, T. Jungwirth, E. Girgis, G.M. Schott, R. Giraud, K. Brunner, G. SchmidtDiese Arbeit enthält Untersuchungen von Magnetowiderstandseffekten in (Ga,Mn)As basierten ferromagnetischen Halbleiterdioden. Die Resultate wurden in den folgenden Artikeln veröffentlicht: [1] C. Rüster, T. Borzenko, C. Gould, G. Schmidt, L.W. Molenkamp, X. Liu, T.J.Wojtowicz, J.K. Furdyna, Z.G. Yu and M. Flatt´e, Very Large Magnetoresistance in Lateral Ferromagnetic (Ga,Mn)As Wires with Nanoconstrictions, Physical Review Letters 91, 216602 (2003). [2] C. Gould, C. Rüster, T. Jungwirth, E. Girgis, G.M. Schott, R. Giraud, K. Brunner, G. Schmidt and L.W. Molenkamp, Tunneling Anisotropic Magnetoresistance: A Spin-Valve-Like Tunnel Magnetoresistance Using a Single Magnetic Layer, Physical Review Letters 93, 117203 (2004). [3] C. Rüster, C. Gould, T. Jungwirth, J. Sinova, G.M. Schott, R. Giraud, K. Brunner, G. Schmidt and L.W. Molenkamp, Very Large Tunneling Anisotropic Magnetoresistance of a (Ga,Mn)As/GaAs/(Ga,Mn)As Stack, Physical Review Letters 94, 027203 (2005). [4] C. Rüster and C. Gould, T. Jungwirth, E. Girgis, G.M. Schott, R. Giraud, K. Brunner, G. Schmidt and L.W. Molenkamp, Tunneling anisotropic magnetoresistance: Creating a spin-valve-like signal using a single ferromagnetic semiconductor layer, Journal of Applied Physics 97, 10C506 (2005).zeige mehrzeige weniger
  • This work is an investigation of giant magnetoresistance (GMR), tunneling magnetoresistance (TMR) and tunneling anisotropic magnetoresistance (TAMR)effects in (Ga,Mn) based ferromagnetic semiconductor junctions. Detailed results are published in the following articles: [1] C. Rüster, T. Borzenko, C. Gould, G. Schmidt, L.W. Molenkamp, X. Liu, T.J.Wojtowicz, J.K. Furdyna, Z.G. Yu and M. Flatt´e, Very Large Magnetoresistance in Lateral Ferromagnetic (Ga,Mn)As Wires with Nanoconstrictions, Physical Review Letters 91, 216602 (2003). [2] C. Gould, C.This work is an investigation of giant magnetoresistance (GMR), tunneling magnetoresistance (TMR) and tunneling anisotropic magnetoresistance (TAMR)effects in (Ga,Mn) based ferromagnetic semiconductor junctions. Detailed results are published in the following articles: [1] C. Rüster, T. Borzenko, C. Gould, G. Schmidt, L.W. Molenkamp, X. Liu, T.J.Wojtowicz, J.K. Furdyna, Z.G. Yu and M. Flatt´e, Very Large Magnetoresistance in Lateral Ferromagnetic (Ga,Mn)As Wires with Nanoconstrictions, Physical Review Letters 91, 216602 (2003). [2] C. Gould, C. Rüster, T. Jungwirth, E. Girgis, G.M. Schott, R. Giraud, K. Brunner, G. Schmidt and L.W. Molenkamp, Tunneling Anisotropic Magnetoresistance: A Spin-Valve-Like Tunnel Magnetoresistance Using a Single Magnetic Layer, Physical Review Letters 93, 117203 (2004). [3] C. Rüster, C. Gould, T. Jungwirth, J. Sinova, G.M. Schott, R. Giraud, K. Brunner, G. Schmidt and L.W. Molenkamp, Very Large Tunneling Anisotropic Magnetoresistance of a (Ga,Mn)As/GaAs/(Ga,Mn)As Stack, Physical Review Letters 94, 027203 (2005). [4] C. Rüster and C. Gould, T. Jungwirth, E. Girgis, G.M. Schott, R. Giraud, K. Brunner, G. Schmidt and L.W. Molenkamp, Tunneling anisotropic magnetoresistance: Creating a spin-valve-like signal using a single ferromagnetic semiconductor layer, Journal of Applied Physics 97, 10C506 (2005).zeige mehrzeige weniger

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Autor(en): Christian Rüster
URN:urn:nbn:de:bvb:20-opus-15554
Dokumentart:Dissertation
Titelverleihende Fakultät:Universität Würzburg, Fakultät für Physik und Astronomie
Institute der Universität:Fakultät für Physik und Astronomie / Physikalisches Institut
Datum der Abschlussprüfung:21.10.2005
Sprache der Veröffentlichung:Englisch
Erscheinungsjahr:2005
Allgemeine fachliche Zuordnung (DDC-Klassifikation):5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Normierte Schlagworte (GND):Galliumarsenid; Manganarsenide; Halbleiterdiode; Ferromagnetische Schicht; Magnetowiderstand
Freie Schlagwort(e):Ferromagnetische Halbleiter; Magnetotransport; Spintronics; Tunneldioden
Spintronics; ferromagnetic semiconductors; magnetotransport; tunneling diodes
Fachklassifikation Physik (PACS):70.00.00 CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES / 72.00.00 Electronic transport in condensed matter (for electronic transport in surfaces, interfaces, and thin films, see section 73; for electrical properties related to treatment conditions, see 81.40.Rs; for transport properties of superconductors, see 74.25.Fy; / 72.25.-b Spin polarized transport (for ballistic magnetoresistance, see 75.47.Jn; for spin polarized transport devices, see 85.75.-d) / 72.25.Dc Spin polarized transport in semiconductors
70.00.00 CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES / 73.00.00 Electronic structure and electrical properties of surfaces, interfaces, thin films, and low-dimensional structures (for electronic structure and electrical properties of superconducting films and low-dimensional structures, see 74.78.-w; for computational / 73.40.-c Electronic transport in interface structures / 73.40.Gk Tunneling (for tunneling in quantum Hall effects, see 73.43.Jn)
70.00.00 CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES / 75.00.00 Magnetic properties and materials (for magnetic properties of quantum solids, see 67.80.dk; for magnetic properties related to treatment conditions, see 81.40.Rs; for magnetic properties of superconductors, see 74.25.Ha; for magnetic properties of rocks a / 75.47.-m Magnetotransport phenomena; materials for magnetotransport (for spintronics, see 85.75.-d; see also 72.15.Gd, 73.50.Jt, 73.43.Qt, and 72.25.-b in transport phenomena) / 75.47.Jn Ballistic magnetoresistance
70.00.00 CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES / 75.00.00 Magnetic properties and materials (for magnetic properties of quantum solids, see 67.80.dk; for magnetic properties related to treatment conditions, see 81.40.Rs; for magnetic properties of superconductors, see 74.25.Ha; for magnetic properties of rocks a / 75.50.-y Studies of specific magnetic materials / 75.50.Pp Magnetic semiconductors
80.00.00 INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY / 85.00.00 Electronic and magnetic devices; microelectronics; Vacuum tubes, see 84.47.+w; Microwave tubes, see 84.40.Fe; Phototubes, see 85.60.Ha; Conductors, resistors, and inductors, see 84.32.Ff, Hh / 85.75.-d Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields / 85.75.Mm Spin polarized resonant tunnel junctions
Datum der Freischaltung:09.12.2005
Betreuer:Prof. Dr. Laurens W. Molenkamp