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T. Adamantopoulos

As seen in: Physical Review B
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Articles by T. Adamantopoulos

Orbital Rashba Effect as a Platform for Robust Orbital Photocurrents

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By T. Adamantopoulos, RWTH Aachen, M. Merte, Johannes Gutenberg Mainz
| Physical Review B
Orbital current has emerged over the past years as one of the key novel concepts in magnetotransport. Here, we demonstrate that laser pulses can be used to generate large and robust nonrelativistic orbital currents in systems where the inversion symmetry is broken by the orbital Rashba effect.
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Laser-induced charge and spin photocurrents at the ${\mathrm{BiAg}}_{2}$ surface: A first-principles benchmark

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By Peter Grünberg Institut, Forschungszentrum Jülich, RWTH Aachen, T. Adamantopoulos
| Physical Review B
Abstract Here, we report first-principles calculations of laser-induced photocurrents at the surface of a prototype Rashba system. By referring to Keldysh nonequilibrium formalism combined with the Wannier interpolation scheme, we perform first-principles electronic structure calculations of a prototype BiAg2 surface alloy, which is a well-known material realization of the Rashba model. In addition to the nonmagnetic ground state situation, we also study the case of in-plane magnetized BiAg2.
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