News : IRIG

January 01 2023

µLaue diffraction and excited luminescence in nitrides optoelectronics: physics, operando, serial crystallography

The Laue microdiffraction instrument (µLaue), installed at the European Synchrotron (ESRF) in Grenoble (BM32 beamline), is unique in Europe and probes the matter by diffracting a polychromatic X-ray beam of a few hundred nanometers. The acquisition of the Laue diffraction diagram is very fast and allows scanning the samples with high precision to get the […] >>

August 26 2022

Strain driven Group IV photonic devices: applications to light emission and detection

Straining the cristal lattice of a semiconductor is a very powerfull tool enabling controlling many properties such as its emission wavelength, its mobility…Making strain amplification microstructures is a rather recent technique allowing accumulating very significant amounts of strain in a micronic constriction, such as a microbridge (up to 4.9% for Ge [1]), which deeply drives […] >>

January 18 2022

Postdoctoral position on the modeling of silicon spin qubits

A post-doctoral position is opened at the Interdisciplinary Research Institute of Grenoble (IRIG) of the CEA Grenoble (France) on the theory and modeling of silicon spin quantum bits (qubits). The selected candidate is expected to start at the beginning of year 2022, for up to two years. Quantum information technologies on silicon have raised an […] >>

October 19 2020

Light Emission by Group Four Semiconductors in Vertical Optical Resonators

Group Four (GF) semiconductors such as silicon, germanium and their alloys are the key materials of modern technologies for the electronic data processing. However, use of this class of materials for optoelectronic applications is hindered by the indirect nature of its band gap. The recent rise of direct band gap, group four alloys of the […] >>

October 22 2019

Micromagnetic study of a voltage controlled skyrmion chirality switch

Skyrmions in thin films are spin textures across which the magnetization follows a cycloid with a unique sense of rotation, known as chirality. These specific magnetic patterns can be stabilized in various kinds of materials, and particularly in ultrathin trilayers with no inversion symmetry (e.g. heavy metal/ferromagnet/oxide) exhibiting simultaneously an interfacial interaction called Dzyaloshinskii-Moriya (DMI) […] >>
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