Search Results - "Testelin, C."

Multiband k·p Model for Tetragonal Crystals: Application to Hybrid Halide Perovskite Nanocrystals by Ben Aich, R, Ben Radhia, S, Boujdaria, K, Chamarro, M, Testelin, C

“…We investigate the theoretical band structure of organic–inorganic perovskites APbX3 with tetragonal crystal structure. Using D 4h point group symmetry…”
Get full text

Spin relaxation time of donor-bound electrons in a CdTe quantum well by Garcia-Arellano, G., Bernardot, Frédéric, Karczewski, G., Testelin, C., Chamarro, M.

“…Low-temperature spin relaxation time of electrons localized on iodine donors placed in the middle of a 8-nm CdTe quantum well is studied by using the…”
Get full text

Electron exchange energy of neutral donors inside a quantum well by Garcia-Arellano, G., Bernardot, Frédéric, Testelin, C., Chamarro, M.

“…We calculated the exchange energy of a pair of donor-bound electrons placed in the middle of an infinite quantum well (QW). In order to obtain this energy for…”
Get full text

Temperature dependence of the spin relaxation time of donor-bound electrons immersed in a CdTe quantum well by Garcia-Arellano, G., Bernardot, Frédéric, Karczewski, G., Testelin, C., Chamarro, M.

“…The behavior of the spin relaxation time of electrons bound to donors immersed in the middle of a CdTe quantum well was measured in the range of temperatures…”
Get full text

Hole-nuclear spin interaction in quantum dots by Eble, B, Testelin, C, Desfonds, P, Bernardot, F, Balocchi, A, Amand, T, Miard, A, Lemaître, A, Marie, X, Chamarro, M

“…We have measured the carrier spin dynamics in p-doped InAs/GaAs quantum dots by pump-probe and time-resolved photoluminescence experiments. We obtained…”
Get full text

Effect of picosecond strain pulses on thin layers of the ferromagnetic semiconductor (Ga,Mn)(As,P) by Thevenard, L., Peronne, E., Gourdon, C., Testelin, C., Cubukcu, M., Charron, E., Vincent, S., Lemaître, A., Perrin, B.

“…The effect of picosecond acoustic strain pulses (ps-ASP) on a thin layer of (Ga,Mn)As codoped with phosphorus was probed using magneto-optical Kerr effect…”
Get full text

Two-phonon process and hyperfine interaction limiting slow hole-spin relaxation time in InAs/GaAs quantum dots by Fras, F., Eble, B., Desfonds, P., Bernardot, F., Testelin, C., Chamarro, M., Miard, A., Lemaître, A.

“…We study the hole-spin relaxation in p-doped InAs quantum dots. Two relaxation mechanisms are evidenced, at low magnetic field (0 < or = B < or = 2T) and low…”
Get full text

Effects of thickness layer on the photoluminescence properties of InAlAs/GaAlAs quantum dots by Daly, A. Ben, Bernardot, F., Barisien, T., Galopin, E., Lemaître, A., Maaref, M. A., Testelin, C.

“…We investigated the effect of InAlAs layer thickness on exciton-spin relaxation and optical properties of In 0.62 Al 0.38 As/Al 0.67 Ga 0.33 As QDs. The…”
Get full text

Quantum-size Dependence of Fine Structure and Spin Lifetime in Self-assembled InAlAs/AlGaAs Quantum Dots by Sahli, A., Melliti, A., Maaref, M. A., Lemaître, A., Testelin, C.

“…The quantum dot size dependence of spin lifetimes and fine structure are studied by polarization-resolved photoluminescence experiments on InAlAs…”
Get full text

Annealing effect on the magnetization reversal and Curie temperature in a GaMnAs layer by Riahi, H., Ouerghui, W., Thevenard, L., Gourdon, C., Maaref, M.A., Lemaître, A., Mauguin, O., Testelin, C.

“…Vibrating Sample Magnetometer measurements were performed on a ferromagnetic (Ga,Mn)As thin film. We report Curie temperature (Tc) up to 142K in an annealed…”
Get full text

Hole and trion spin dynamics in quantum dots under excitation by a train of circularly polarized pulses by Eble, B., Desfonds, P., Fras, F., Bernardot, F., Testelin, C., Chamarro, M., Miard, A., Lemaître, A.

“…We have performed pump-probe experiments in p -doped InAs/GaAs quantum dots leading to the all-optical initialization and readout of hole spins. In order to…”
Get full text

Circularly Polarized Emission from Ensembles of InGaAs/GaAs Quantum Rings by Naouari, R., Ouerghi, W., Bernardot, F., Testelin, C., Maaref, M. A., Martinez-Pastor, J., Granados, D., Garcia, J. M.

“…Magneto-photoluminescence spectroscopy measurements were performed on self-assembled InGaAs/GaAs quantum rings. We report exciton exchange energy as a function…”
Get full text

Electron and hole spin cooling efficiency in InAs quantum dots: The role of nuclear field by Desfonds, P., Eble, B., Fras, F., Testelin, C., Bernardot, F., Chamarro, M., Urbaszek, B., Amand, T., Marie, X., Gérard, J. M., Thierry-Mieg, V., Miard, A., Lemaître, A.

“…The spin dynamics of a resident carrier, hole or electron, in singly charged InAs/GaAs quantum dots has been measured by pump-probe experiments. The relative…”
Get full text

Theoretical Model and Experimental Study of Effects of Rapid Thermal Annealing on Self-assembled In(Ga)As/GaAs Quantum Dots by Chaâbani, W., Melliti, A., Moadhen, A., Maaref, M. A., Testelin, C., Lemaître, A., Oueslati, M.

“…This paper presents a study of rapid thermal annealing (RTA) effects on self-assembled In(Ga)As/GaAs quantum dots (QDs) using Raman scattering and…”
Get full text

Anisotropic spin splitting of the electron ground state in InAs quantum dots by Aubry, E., Testelin, C., Bernardot, F., Chamarro, M., Lemaître, A.

“…Photoinduced circular dichroism experiments in an oblique magnetic field allow measurements of Larmor precession frequencies, and so give a precise…”
Get full text

Exciton spin manipulation in inAs/GaAs quantum dots : Exchange interaction and magnetic field effects by SENES, M, URBASZEK, B, MARIE, X, AMAND, T, TRIBOLLET, J, BERNARDOT, F, TESTELIN, C, CHAMARRO, M, GERARD, J.-M

“…We report quantum beat phenomena between different polarization states in InAs quantum dots, observed in time-resolved photoluminescence and transient…”
Get full text

Enhancement of the electron spin memory by localization on donors in a CdTe quantum well by Tribollet, J., Aubry, E., Karczewski, G., Sermage, B., Bernardot, F., Testelin, C., Chamarro, M.

“…We present easily reproducible experimental conditions giving rise to a long electron spin memory at low temperature. The proposed system consists of an…”
Get full text

Interplay of spin dynamics of trions and two-dimensional electron gas in a n-doped CdTe single quantum well by Tribollet, J., Bernardot, Frédéric, Menant, Michel, Karczewski, G., Testelin, Christophe, Chamarro, Maria

“…We used the photoinduced Faraday rotation technique to study the low-temperature spin relaxation of excitons, trions, and two-dimensional electron gas in…”
Get full text

Linear and dynamical photoinduced dichroisms of InAs/GaAs self-assembled quantum dots: Population relaxation and decoherence measurements by Bernardot, Frédéric, Aubry, E, Tribollet, J, Testelin, Christophe, Chamarro, Maria, Lombez, L, Braun, Pf, Marie, Xavier, Amand, Thierry, Gerard, Jm

“…We present and model our pump-probe experiments measuring the photoinduced dynamics of an ensemble of self-assembled InAs/GaAs quantum dots. A pulsed pump…”
Get full text

Spin excitations of the spin-polarized electron gas in semimagnetic quantum wells by Jusserand, B, Perez, F, Richards, D R, Karczewski, G, Wojtowicz, T, Testelin, C, Wolverson, D, Davies, J J

“…Collective and single-particle spin-flip excitations of a two-dimensional electron gas in a semimagnetic Cd(1-x)Mn(x)Te quantum well are observed by resonant…”
Get full text