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Spin Orientation of...
Spin Orientation of Two-Dimensional Electrons Driven by Temperature-Tunable Competition of Spin-Orbit and Exchange-Magnetic Interactions
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- Generalov, Alexander (författare)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Otrokov, Mikhail M. (författare)
- Donostia International Physics Center (DIPC),Tomsk State University
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- Chikina, Alla (författare)
- Dresden University of Technology
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- Kliemt, Kristin (författare)
- Goethe University
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- Kummer, Kurt (författare)
- European Synchrotron Radiation Facility
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- Höppner, Marc (författare)
- Max Planck Institute for Solid State Research
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- Güttler, Monika (författare)
- Dresden University of Technology
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- Seiro, Silvia (författare)
- Max Planck Institute for Chemical Physics of Solids
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- Fedorov, Alexander (författare)
- Leibniz Institute for Solid State and Materials Research
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- Schulz, Susanne (författare)
- Dresden University of Technology
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- Danzenbächer, Steffen (författare)
- Dresden University of Technology
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- Chulkov, Evgueni V. (författare)
- Donostia International Physics Center (DIPC),Tomsk State University,Saint Petersburg State University
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- Geibel, Christoph (författare)
- Max Planck Institute for Chemical Physics of Solids
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- Laubschat, Clemens (författare)
- Dresden University of Technology
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- Dudin, Pavel (författare)
- Diamond Light Source
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- Hoesch, Moritz (författare)
- Diamond Light Source
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- Kim, Timur (författare)
- Diamond Light Source
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- Radovic, Milan (författare)
- Paul Scherrer Institute
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- Shi, Ming (författare)
- Paul Scherrer Institute
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- Plumb, Nicholas C. (författare)
- Paul Scherrer Institute
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- Krellner, Cornelius (författare)
- Goethe University
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- Vyalikh, Denis V. (författare)
- Basque Foundation for Science,Donostia International Physics Center (DIPC),Paul Scherrer Institute,Dresden University of Technology
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(creator_code:org_t)
- 2017-01-04
- 2017
- Engelska 10 s.
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Ingår i: Nano Letters. - : American Chemical Society (ACS). - 1530-6984 .- 1530-6992. ; 17:2, s. 811-820
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Finding ways to create and control the spin-dependent properties of two-dimensional electron states (2DESs) is a major challenge for the elaboration of novel spin-based devices. Spin-orbit and exchange-magnetic interactions (SOI and EMI) are two fundamental mechanisms that enable access to the tunability of spin-dependent properties of carriers. The silicon surface of HoRh2Si2 appears to be a unique model system, where concurrent SOI and EMI can be visualized and controlled by varying the temperature. The beauty and simplicity of this system lie in the 4f moments, which act as a multiple tuning instrument on the 2DESs, as the 4f projections parallel and perpendicular to the surface order at essentially different temperatures. Here we show that the SOI locks the spins of the 2DESs exclusively in the surface plane when the 4f moments are disordered: the Rashba-Bychkov effect. When the temperature is gradually lowered and the system experiences magnetic order, the rising EMI progressively competes with the SOI leading to a fundamental change in the spin-dependent properties of the 2DESs. The spins rotate and reorient toward the out-of-plane Ho 4f moments. Our findings show that the direction of the spins and the spin-splitting of the two-dimensional electrons at the surface can be manipulated in a controlled way by using only one parameter: the temperature.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- antiferromagnetism
- ARPES
- exchange-magnetic interaction
- rare-earth intermetallics
- Spin-orbit coupling
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Generalov, Alexa ...
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Otrokov, Mikhail ...
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Chikina, Alla
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Kliemt, Kristin
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Kummer, Kurt
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Höppner, Marc
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visa fler...
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Güttler, Monika
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Seiro, Silvia
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Fedorov, Alexand ...
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Schulz, Susanne
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Danzenbächer, St ...
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Chulkov, Evgueni ...
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Geibel, Christop ...
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Laubschat, Cleme ...
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Dudin, Pavel
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Hoesch, Moritz
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Kim, Timur
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Radovic, Milan
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Shi, Ming
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Plumb, Nicholas ...
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Krellner, Cornel ...
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Vyalikh, Denis V ...
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