Publication
Skyrmion formation in a bulk chiral magnet at zero magnetic field and above room temperature
Publications associées (46)
Design of magnetic spirals in layered perovskites: Extending the stability range far beyond room temperature
In insulating materials with ordered magnetic spiral phases, ferroelectricity can emerge owing to the breaking of inversion symmetry. This property is of both fundamental and practical interest, particularly with a view to exploiting it in low-power electr ...
AMER ASSOC ADVANCEMENT SCIENCE2018Thermodynamic evidence of a second skyrmion lattice phase and tilted conical phase in Cu2OSeO3
Precision measurements of the magnetization and ac susceptibility of Cu2OSeO3 are reported for magnetic fields along different crystallographic directions, focusing on the border between the conical and the field-polarized state for a magnetic field along ...
2018Magnesium Partitioning Between Earth's Mantle and Core and its Potential to Drive an Early Exsolution Geodynamo
Magnesium partitioning between metal and silicate was experimentally investigated between 34 and 138GPa, 3,500 and 5,450K using laser-heated diamond anvil cells. The 22 measurements are combined with previously published data (total of 49 measurements) to ...
AMER GEOPHYSICAL UNION2018Efficient Electrochemical Production of Peroxodicarbonate Applying DIACHEM (R) Diamond Electrodes
The electrochemical synthesis of peroxodicarbonate was performed on boron-doped DIACHEM((R)) diamond anodes (BDD). The influence of various parameters was studied and promising conditions were determined in an undivided cell design by CONDIAS GmbH. The bes ...
Wiley-V C H Verlag Gmbh2017Robust metastable skyrmions and their triangular-square lattice structural transition in a high-temperature chiral magnet
Henrik Moodysson Rønnow, Jonathan White
Skyrmions, topologically protected nanometric spin vortices, are being investigated extensively in various magnets(1-11). Among them, many structurally chiral cubic magnets host the triangular-lattice skyrmion crystal (SkX) as the thermodynamic equilibrium ...
Nature Publishing Group2016Scaling between magnetic field and temperature in the high-temperature superconductor BaFe2(As1−xP x )2
Many exotic metallic systems have a resistivity that varies linearly with temperature, and the physics behind this is thought to be connected to high-temperature superconductivity in the cuprates and iron pnictides1,2,3,4,5,6,7,8,9. Although this phenomeno ...
2016Model for superconductivity at any temperature
Yannis Burnier, Eray Sabancilar
We construct a 2 + 1 dimensional model that sustains superconductivity at all temperatures. This is achieved by introducing a Chern-Simons mixing term between two Abelian gauge fields A and Z. The superfluid is described by a complex scalar charged under Z ...
Amer Physical Soc2016The variation of PbTiO3 bandgap at ferroelectric phase transition
Optical properties of the PbTiO3 thin films fabricated by chemical solution deposition have been measured with variable angle spectroscopic ellipsometry in the spectral range of 1-6 eV and in the temperature interval from room temperature to 950 K. The opt ...
Iop Publishing Ltd2016Capacitive inertial sensing at high temperatures of up to 400 degrees C
Mikhail Asiatici, Göran Stemme
High-temperature-resistant inertial sensors are increasingly requested in a variety of fields such as aerospace, automotive and energy. Capacitive detection is especially suitable for sensing at high temperatures due to its low intrinsic temperature depend ...
Elsevier Science Sa2016A 400 fJ Per-Cycle Frequency Reference for Internet of Things
Maher Kayal, François Krummenacher, Mathieu Yves Hervé Coustans
This work presents an ultra-low power oscillator designed to target different contexts, such as crystal-assisted time keeping, reference oscillator to optimize the always on domain of a microcontroller or wake-up timer. This oscillator enables ultra-low po ...
2016