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Thermoelectric Effects in Spin Valves Based on Layered Magnetic Structures

100%
Kunert H., Barnaś J.
Acta Physica Polonica A
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2017
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vol. 132
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issue 1
124-128
EN
General aspects of thermoelectric effects in spin valves consisting of two magnetic layers separated by a nonmagnetic spacing layer are considered, with the main focus on the spin Seebeck effects. The Seebeck and spin Seebeck effects are considered in both current-in-plane and current-perpendicular-to-plane geometries. The corresponding thermopower and spin thermopower in the macroscopic limit of electronic transport are also considered. Physical origin of the spin effects is discussed in detail.
2
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Qubits in Double Quantum Well Structure

100%
Jakubczyk P., Majchrowski K., Tralle I.
Acta Physica Polonica A
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2017
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vol. 132
|
issue 1
115-117
EN
We propose a new approach to producing the qubits in electron ballistic transport in low-dimensional structures such as double quantum wells or double quantum wires. Next, we examine the possibility to produce quantum entanglement in the framework of the Jaynes-Cummings model and shown that at least in principle, the entanglement can be achieved due to series of "revivals" and "collapses" in the population inversion due to the interaction of a quantized single-mode EM-field with a two-level system.
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