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DFG Meeting Halbleiter-Spintronik Experiments to probe the inverse Spin-Hall Effect in GaAs U. Pfeuffer, R. Neumann, D. Schuh, W. Wegscheider, D. Weiss
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Extraordinary magnetoresistance in GaMnAs ohmic and Coulomb blockade ... (e2/2C 300K) possible. Worth trying to look for CBAMR in SO-coupled room-Tc metal FMs ...
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Growth of Ga1-xMnxAs & AlAs at low temperature on As rich GaAs surface (As C4x4) ... AlAs. Single barrier MTJ. HRTEM. P. Galtier. Fabrication process of the ...
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Magneto-transport anisotropy phenomena in GaMnAs and beyond Tomas Jungwirth University of Nottingham Bryan Gallagher, Richard Campion, Kevin Edmonds, Andrew Rushforth ...
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... moment along the direction of the field (Typical anisotropy field is 0.01T) ... This has cubic and uniaxial components, consistent with the magnetic anisotropy. ...
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... computational devices in which information is encoded directly into the spin ... as well as of devices based upon them developed in our laboratory, is thus ...
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response to internal magnetization in ferromagnets ... Generic effect in FMs with SO-coupling ~10 K in GaMnAs, ~100 K in room-Tc metal FM ...
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Nathalie Mukolobwiecz Sebastian Mackowski. Kapila Hewaparakrama Nguyen Tuan ... Magnetization hysteresis curves of GaMnAs (), GaMnAs/ZnMnSe (17%) (), and GaMnAs ...
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national laboratory for advanced Tecnologies and nAnoSCience ... 2 Ga cell to maintain the exact stoichiometry during both GaAs and GaMnAs growth. ...
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Title: Prezentace aplikace PowerPoint Author: fzu Last modified by: vit Created Date: 9/8/2006 9:35:19 AM Document presentation format: P edv d n na obrazovce
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Title: Presentazione di PowerPoint Author: SilviaR Last modified by: silvia Created Date: 5/30/2005 8:19:12 AM Document presentation format: On-screen Show
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Spintronic transistors: magnetic anisotropy and direct charge depletion concepts ... 1) indirect via magnetic anisotropy. 2) direct charge depletion effects ...
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... Des propri t s magn tiques modifi es Nano-objets Nanofils de cobalt dans la c rine Interfaces/surfaces Fe/ZnSe Couches minces Fe/ZnSe Plan Histoire ...
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Anisotropic magnetoresistance effects in ferromagnetic semiconductor and metal devices ... square hysteresis loops. 1 mm. 500 nm. 8 K. 22 K. Macro (100's m) domains; ...
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Spin-orbit coupling and spintronics in ferromagnetic semiconductors (and metals) ... Lorentz transformation Thomas precession. 2. 2. e ...
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Ab initio Kubo (CPA) formula for. AMR and AHE in FeNi alloys ... intrinsic AHE in pure Fe: ab initio Kubo eq. I. FSO. FSO. V. Jungwirth et al. PRL 02,APL '03, ...
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Bands of E: conduction and valence band ... Valence band full. Semiconductors. E gap. METALS. INSULATORS. SEMICONDUCTORS. Ferromagnets ...
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Bryan Gallagher, Richard Campion, Kevin Edmonds, Andrew Rushforth, et al. ... 100-10nm resolution with current lithography. in situ directly along the SC channel ...
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Semiconductor Spintronics: What s It All About? Bruce D. McCombe Department of Physics and Center for Advanced Photonic and Electronic Materials
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Annealing also needs to be optimized for each Mn-doping ... need to anneal out (Tc can increase by more than 100K) Tc up to 187 K at 12% Mn doping ...
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Ferromagnetic semiconductors for spintronics Theory concepts ... Lorentz transformation Thomas precession. 2. 2. e- Spintronics: it's all about spin and charge ...
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More recently, wide band gap ferromagnetic semiconductors and oxides ... Pearson et al., 'Wide band gap ferromagnetic Semiconductors and oxides', Journal ...
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size: the wedge is 1.25 inches to a side. 1947-point contact transistor. 1956-Nobel Prize ... 4. control of spin precession. coherent propagation of spin ...
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large & persistent el. fields. transistors, logic, sensitive to doping and ... MRAM universal memory. fast, small, low-power, durable, and non-volatile ...
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Beyond ferromagnetic spintronics: antiferromagnetic I-Mn-V semiconductors Tomas Jungwirth Institute of Physics in Prague & University of Nottingham
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(Ga,Mn)As and its simple picture (Ga,Mn)As in reality. band ... anneal them away ! One can anneal away ! Annealing [Potashnik et al. APL 79, 1495 (2001) ...
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Single electron Transport in diluted magnetic semiconductor quantum dots J. Fern ndez-Rossier, R. Aguado Department of Applied Physics, U. Alicante SPAIN
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based primarily on Nottingham and Hitachi experimental activities ... n-type AlAs with int. Mn only. Comparable Tc to n-type hosts with. substitutional Mn moments ...
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semiconductor structures: TAMR, CBAMR, AMR. Tomas Jungwirth. University of Nottingham ... TAMR: spectroscopy of tunneling DOS anisotropy. M. M ...
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none
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if Mn d state in the valance band. Mn acts a an effective mass acceptor(d5 h) ... Presume that Mn d states reside in the valance band of GaN GaMnN ...
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I- Introduction. II- Theory for disordered Heisenberg models. III- Ab initio based studies for diluted magnetic semiconductors. ... Below 1% no ferromagnetism ...
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III- Ab initio based studies for diluted magnetic semiconductors. ... Inset effect of H. ... (in the inset), for the amplitudes! ...
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need to optimize T & stoichiometry. for each Mn-doping ... (Li / Zn stoichiometry) GaAs and LiZnAs are twin SC (Ga,Mn)As and Li(Zn,Mn)As ...
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... induces the precession of the magnetization about the static magnetic field B0; The component of the magnetization along the laser beam direction oscillates in ...
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1) Wide bandgap. suited for applications with short wavelength light ... Wide band gap hence transparency. 2) Good piezoelectric and electrooptic material. ...
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1a) Phenomenology of the conventional semiconductor. valence band picture of (Ga,Mn)As ... 2a) Phenomenology of the narrow detached impurity band. pictures ...
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Croucher Advanced Study Institute on Science and Application of ... Hysteresis loop of the Hall measurement. B the epitaxial layer, while B runs too far away ...
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Theory: Experiment: Hanna Terletska (FSU) Jan Jaroszynski (FSU) ... Stripe-glass theory (Schmalian, Reichhardt) ... EDMFT approach: nonlinear screening theory ...
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anisotropy parameters. in agreement with (different) ... This effect, called magnetotransport anisotropy. is further promoted by the particular symmetry ...
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A Way Forward? (Not necessarily 'The Way Forward') J N Chapman, University of Glasgow ... Ceramic Insulated, Nickel plated copper windings. 300N, 0.5mm stroke ...
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A Way Forward? (Not necessarily The Way Forward ) J N Chapman, University of Glasgow Synopsis Indicators of activity Magnetism in the late 20th century
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THE CARDIOVASCULAR SYSTEM PROF. W.O. ODESANMI PREVIEW Normal Weight 250-300g Female 300-350g male LV thickness 1.3-1.5cm ...
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CD 33: C lulas mielomonoc ticas Transformaci n de una c lula madre pluripotencial con diferenciaci n predominante hacia cels B-plasm ticas.
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(no SHE driving current) 2DHG. 2DEG. 0 -10 -20. 10. 20. Circ. polarization [%] EL. EL. peak ... over large distances with no significant. effect on the magnitude ...
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