R. André

Spin noise of localized electrons in a CdTe/CdMgTe quantum well

A. L. Zibinskiy, S. Cronenberger, B. F. Gribakin, R. Baye et autres

International audience

ru, fr (code pays fourni par la source)

Sempo - Retrieving Poles, Residues and Zeros in the Complex Frequency Plane from an Arbitrary Spectral Response

Isam Ben Soltane, Mahendra Nath Roy, R. André, Nicolas Bonod

fr (code pays fourni par la source)

Nuclear spin-spin interactions in CdTe probed by zero- and ultralow-field optically detected NMR

V. M. Litvyak, P. S. Bazhin, R. André, M. Vladimirova et autres

Nuclear spins occupying adjacent lattice sites in crystalline solids are often coupled by indirect interactions mediated by valence electrons. If the abundance of magnetic isotopes in the crystal is low, these interactions bind nuclear spins into small clusters. Zero or ultralow magnetic …

ru, fr (code pays fourni par la source)

Nuclear spin relaxation mediated by donor-bound and free electrons in wide CdTe quantum wells

B. F. Gribakin, V. M. Litvyak, M. Kotur, R. André et autres

The nuclear spin systems in CdTe/(Cd,Zn)Te and CdTe/(Cd,Mg)Te quantum wells (QWs) are studied using a multistage technique combining optical pumping and Hanle effect-based detection. The samples demonstrate drastically different nuclear spin dynamics in zero and weak magnetic fields. In CdTe/(Cd,Zn)Te, the nuclear …

fr (code pays fourni par la source)

Nuclear spin-spin interactions in CdTe probed by zero and ultra-low-field optically detected NMR

V. M. Litvyak, P. S. Bazhin, R. André, Masha Vladimirova et autres

Nuclear magnetic resonance (NMR) is particularly relevant for studies of internuclear spin coupling at zero and ultra-low fields (ZULF), where spin-spin interactions dominate over Zeeman ones. Here we report on ZULF NMR in CdTe. In this semiconductor all magnetic isotopes have spin …

ru, fr (code pays fourni par la source)

Nuclear spin relaxation mediated by donor-bound and free electrons in wide CdTe quantum wells

B. F. Gribakin, V. M. Litvyak, M. Kotur, R. André et autres

The nuclear spin systems in CdTe/(Cd,Zn)Te and CdTe/(Cd,Mg)Te quantum wells (QW) are studied using a multistage technique combining optical pumping and Hanle effect-based detection. The samples demonstrate drastically different nuclear spin dynamics in zero and weak magnetic fields. In CdTe/(Cd,Zn)Te, the nuclear …

ru, fr, de (code pays fourni par la source)

Interface birefringence in asymmetric CdTe/CdZnTe quantum wells

L. V. Kotova, А. В. Платонов, R. André, H. Mariette et autres

Photoluminescence and polarized reflection spectra of quantum well structures with symmetric ${\mathrm{Cd}}_{0.9}{\mathrm{Zn}}_{0.1}\mathrm{Te}/\mathrm{CdTe}/{\mathrm{Cd}}_{0.9}{\mathrm{Zn}}_{0.1}\mathrm{Te}$ and asymmetric ${\mathrm{Cd}}_{0.9}{\mathrm{Zn}}_{0.1}\mathrm{Te}/\mathrm{CdTe}/{\mathrm{Cd}}_{0.4}{\mathrm{Mg}}_{0.6}\mathrm{Te}$ barriers were studied. The Stokes parameters of the reflected light from these structures were measured. In structures with asymmetric barriers, in the region of exciton resonances, the …

ru, fr, jp (code pays fourni par la source)

Exciton dynamics in CdTe/CdZnTe quantum well

A. V. Mikhailov, A. S. Kurdyubov, E. S. Khramtsov, I. V. Ignatĭev et autres

Exciton energy structure and population dynamics in a wide CdTe/CdZnTe quantum well are studied by spectrally-resolved pump-probe spectroscopy. Multiple excitonic resonances in reflectance spectra are observed and identified by solving numerically three-dimensional Schrödinger equation. The pump-probe reflectivity signal is shown to be …

ru, fr (code pays fourni par la source)

Light and Heavy Excitons in Strained CdTe/CdZnTe Quantum Wells

L. V. Kotova, Daria Belova, R. André, H. Mariette et autres

Abstract The spectra of photoluminescence and polarized reflection under normal and oblique incidence of light from structures with quantum wells with symmetric Cd0.9Zn0.1Te/CdTe/Cd0.9Zn0.1Te and asymmetric Cd0.9Zn0.1Te/CdTe/Cd0.4Mg0.6Te barriers have been studied. Due to the mechanical stresses caused by the mismatch of the crystal …

ru, fr, jp (code pays fourni par la source)

Легкие и тяжелые экситоны в напряженных квантовых ямах CdTe/CdZnTe

Л.В. Котова, Д.Д. Белова, R. André, H. Mariette et autres

The spectra of photoluminescence and polarized reflection under normal and oblique incidence of light from structures with quantum wells with symmetric Cd0.9Zn0.1Te/CdTe/Cd0.9Zn0.1Te and asymmetric Cd0.9Zn0.1Te/CdTe/Cd0.4Mg0.6Te barriers have been studied. Due to the mechanical stresses caused by the mismatch of the crystal lattices …

fr, jp (code pays fourni par la source)

Проявление анизотропии интерфейсов в квантовых ямах CdTe/CdZnTe

Л.В. Котова, R. André, H. Mariette, В. П. Кочерешко

The spectra of polarized reflection from a structure with a single quantum well and asymmetric Cd 0.9 Zn 0.1 Te/CdTe/Cd 0.4 Mg 0.6 Te barriers are studied in this work. The Stokes parameters of reflected light were measured. In the structure with …

fr, jp (code pays fourni par la source)

Light and heavy excitons in strained CdTe/CdZnTe quantum wells

L. V. Kotova, Daria Belova, R. André, H. Mariette et autres

The spectra of photoluminescence and polarized reflection under normal and oblique incidence of light from structures with quantum wells with symmetric Cd0.9Zn0.1Te/CdTe/Cd0.9Zn0.1Te and asymmetric Cd0.9Zn0.1Te/CdTe/Cd0.4Mg0.6Te barriers have been studied. Due to the mechanical stresses caused by the mismatch of the crystal lattices …

ru, fr, jp (code pays fourni par la source)