20 novembre 2017
Contact : Eva Monroy
Researchers at INAC-PHELIQS-NPSC have developed new approaches for the detection of ultraviolet/infrared light using single GaN nanowires. Results have led to the demonstration of the first photodetector-in-a-wire based on intersubband transitions, i.e. electron transitions within quantum-confined ... Lire la suite »
15 novembre 2017
Contact : David Aradilla
Three different services, SyMMES, MEM and PhELIQS from INAC institute, have been working together during the last year and a half within the framework of a collaborative intern project dealing with nitrogen doped-vertically oriented graphene nanosheets (N-VOGNs) for supercapacitor applications. The ... Lire la suite »
18 octobre 2017
Integration of charge sensors for the readout of semiconductor quantum bits (qubits) is required for a realistic realization of scalable quantum computer. Such charge-sensitive devices, however, involve a significant overhead in terms of gates and contact leads, posing an issue for scalability ... Lire la suite »
13 octobre 2017
In the context of the study of the interplay between magnetism and superconductivity, a phase transition has been evidenced as a function of magnetic field between two phases having identical magnetic symmetry. Since this effect cannot be magnetically driven, it implies a modification of the nature ... Lire la suite »
11 septembre 2017
Contact : David Aradilla
Rodrigo Newell has received an award by the Société Chimique de France (SCF - Subdivision Electrochimie) within the framework of his master project conducted at INAC/SyMMES/STEP under the supervision of Dr. Aradilla. The prize is a recognition for his work dealing with the development ... Lire la suite »
04 septembre 2017
Uranium is a natural element widely found in the environment, due to both natural occurrence in mineral ores or in sea water and industrial applications. The production of nuclear energy uses enriched uranium in 235U for nuclear fission. Despite its ubiquitous distribution, uranium has no essential ... Lire la suite »
22 août 2017
Jean-Pierre Nozières, Spintec researcher in magnetic devices, is one of the winners of the Innovation Medal of the CNRS “cuvee” 2017 at 54 years old. Since 2011, this distinction has been awarded for outstanding scientific research leading to a remarkable innovation, whether in ... Lire la suite »
21 juillet 2017
Contact : Joël Emery
The properties of hard X-ray to excite light emission can be combined simultaneously with X-ray fluorescence techniques to study nanoscale devices as demonstrated for multiple quantum well (MQW) InGaN/GaN core/shell wires integrated in blue LED emitters. This study allowed us to understand the ... Lire la suite »
17 juillet 2017
Contact : Mair CHSHIEV
Advancing spintronic devices requires using novel 2D materials including graphene with featured properties. In particular, a significant effort has been focused on injecting spins and inducing magnetism in graphene giving rise to emerging field of graphene spintronics. It is demonstrated that ... Lire la suite »
28 juin 2017
The development of sensitive and compact readout tools of quantum states is a central issue in the run to industrial scalability of semiconductor quantum bits (qubits). We employ the gates of industrial silicon Field-Effect Transistors (used as qubits) as radio-frequency resonators integrated in ... Lire la suite »
12 avril 2017
In a metal the energy levels of the electrons, which have to be all in different quantum states due to the Pauli exclusion principle, are filled up to the Fermi energy at zero temperature. The surface of constant energy in the reciprocal space separating occupied and unoccupied electronic states is ... Lire la suite »
03 mars 2017
Contact : Gaël De Paepe
Katharina Märker (PhD student, MEM/RM) was awarded the Ernst Award during the Annual Meeting of the German Magnetic Resonance Discussion Group in Düsseldorf. At this occasion she had the opportunity to present her recently published work on NMR crystallography. The Ernst award was ... Lire la suite »
02 février 2017
Moiré patterns are superlattice structures that appear when two crystals with a lattice mismatch or with a different orientation are superimposed. We have developed a universal classification of all possible periodic Moirés in order to determine their exact crystallographic ... Lire la suite »
10 janvier 2017
Contact : Stefano Mossa
Veerapandian Ponnuchamy, Ioannis Skarmoutsos, Stefano Mossa - INAC/SYMMES Valentina Vetere - LITEN/DEHT The electrolyte is a crucial component of a Lithium-ion battery. On one side, it affects the rate of the energy release, by controlling the mass transport properties within the cell. It ... Lire la suite »
30 novembre 2016
Leti, an institute of CEA Tech, along with Inac, a fundamental research division of CEA, and the University of Grenoble Alpes have achieved the first demonstration of a quantum-dot-based spin qubit using an industry-standard fabrication process. Published in the November 24 issue of Nature ... Lire la suite »
23 novembre 2016
An unprecedented detailed description of local cationic sites embedded within a Li-rich (Mn/Ni) layered oxide has been achieved by combining Solid-State Nuclear Magnetic Resonance (MAS-NMR) spectroscopy of the lithium and a statistical model allowing to extract structural information out of the ... Lire la suite »
06 octobre 2016
Drug targeting is an attractive and powerful therapeutic strategy that is proposed to enhance drug efficacy and to decrease the many side-effects associated with systemic drug therapy. Indeed, it achieves specific drug accumulation in the diseased organ or cells. This strategy is exploited at INAC ... Lire la suite »
05 septembre 2016
Contact : David ARADILLA
Within the framework of the NEST (Nanowires for Energy STorage) european project (2012 -2016, no. 309143) two teams from INAC (SyMMES/PCI and PhELIQS/SiNAPS), in a tight collaboration with an industrial company (IOLITEC, Heilbronn, Germany) and a technological center (FHG, Freiburg, Germany), have ... Lire la suite »
23 mars 2016
Contact : Bruno Gayral
We have studied the growth and optical properties of AlGaN nanowires, a potential candidate for future ultraviolet light sources. We have evidenced that such structures behave as a collection of quantum dots due to short-scale composition fluctuations. Nanowires made of nitride semiconductors ... Lire la suite »
23 novembre 2015
Contact : Stefano Mossa
Control of heat transport at the nanoscale is crucial for many technologies, including thermoelectricity. We have demonstrated by computer simulation of a toy model, that it is possible to design highly ordered systems with thermal conductivities lower than those of completely disordered structures ... Lire la suite »
15 septembre 2015
Contact : Damien Massy
Damien Massy, SP2M/NRS, received the best presentation award at the E-MRS Fall meeting 2015 for his paper called “Alternative Smart-Cut integration on silicon”. The paper was about Damien’s PhD work, on Acoustic Emission from Crack Propagation in the Smart Cut™ Technology.
09 septembre 2015
Contact : David Aradilla
Over the past years the rapid and growing demand of miniaturized electronic devices, such as medical implants (neurotransmitters), micro-sensors or micro-mechanical systems, has triggered intensive investigations in the research of new on-chip energy storage units for their integration into such ... Lire la suite »
23 juin 2015
Contact : Mair Chshiev
Abstract The interfacial structures between magnetic/non-magnetic films play a crucial rule in spintronic devices. In particular, Tunneling magneto-resistance (TMR) is extremely sensitive to the band structure of ferromagnet/insulator interfaces.  In this sense, a number of experimental and ... Lire la suite »
16 juin 2015
To mimic the copper transport protein Ctr1, responsible for copper entrance into cells, several molecular architectures based on the symmetric scaffold, nitrilotriacetic acid (NTA) functionalized with three amino acids bearing thioether side chains were designed. These thioether derivatives form ... Lire la suite »
31 mars 2015
Legend: Q-constant energy scans (solid symbols), at two Bragg positions shown in the inset, fitted by a series of Gaussian functions (solid lines). This figure emphasizes one series of transverse modes when the scattering vector Q is parallel to the direction of the ordered antiferromagnetic ... Lire la suite »
03 mars 2015
Contact : Marina Gromova
In oleaginous seeds, the energy reserves are mainly triacylglycerols that are liquid lipids contained inside micrometric vesicles, called oil bodies (OB). Seeds are of first importance for human and animal feeds, for biofuels sources and their economic weight is far from being negligible. Therefore ... Lire la suite »
03 février 2015
Contact : Marc Sanquer
Nanowire transistors in the sub10 nm range are subject to process variability. A main cause is the surface roughness of the nanowire. A single dopant centered in the channel can also modify the room temperature electrical characteristics of the transistor.  Both the surface roughness and a ... Lire la suite »
06 juin 2014
Atomically clean superconducting graphene has been grown on thin rhenium films. This breakthrough paves the way to new hybrid superconducting nanostructures.   Graphene is not an intrinsic superconductor but can become superconducting by proximity effect when it is intimately connected ... Lire la suite »
17 mars 2014
Graphite is widely used as an anode material for lithium ion batteries. Lithium atoms are stored with a well defined periodicity, called "stage" between carbon planes. The standard model describes the staging with pseudo-infinite lithium planes alternating with empty planes. Daumas and ... Lire la suite »
26 février 2014
Contact : Gaël De Paëpe
Owing to an innovative sample preparation method labelled “matrix-free”, the powerful structural characterization technique of two-dimensional NMR carbon-carbon correlation spectroscopy, up to now reserved to isotopically carbon-13 enriched materials, is made accessible to natural ... Lire la suite »

 

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