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Skyrmion formation in a bulk chiral magnet at zero magnetic field and above room temperature

Publications associées (46)

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Extensive characterisation of advanced manufacturing solutions for the ITER Central Solenoid pre-compression system

The ITER Central Solenoid (CS), positioned in the center of the ITER tokamak, will provide a magnetic field, contributing to the confinement of the plasma. The 13 m high CS consists of a vertical stack of 6 independently driven modules, dynamically activat ...

Elsevier Science Sa2015

Air nonlinear dynamics initiated by ultra-intense lambda-cubic terahertz pulses

Christoph Peter Hauri, Mostafa Shalaby

We report on the measurement of the instantaneous Kerr nonlinearity and the retarded alignment of air molecules CO2, N-2, and O-2 triggered by an intense, lambda-cubic terahertz pulse, a diffraction-and transform-limited single-cycle pulse. The strong-fiel ...

Amer Inst Physics2015

Unusual Shubnikov-de Haas oscillations in BiTeCl

Arnaud Magrez, Helmuth Berger, Philippe Bugnon

We report measurements of Shubnikov-de Haas oscillations in single crystals of BiTeCl at magnetic fields up to 31 T and at temperatures as low as 0.4 K. Two oscillation frequencies were resolved at the lowest temperatures, F-1 = 65 +/- 4 T and F-2 = 156 +/ ...

Amer Physical Soc2014

Sub-millikelvin stabilization of a closed cycle cryocooler

Guy Joseph Günter Dubuis, Ivan Bozovic, Xi He

Intrinsic temperature oscillations (with the amplitude up to 1 K) of a closed cycle cryocooler are stabilized by a simple thermal damping system. It employs three different materials with different thermal conductivity and specific heat at various temperat ...

American Institute of Physics2014

Glassy low-energy spin fluctuations and anisotropy gap in La_{1.88}Sr_{0.12}CuO_{4}

Joël Mesot, Johan Juul Chang, Christopher Werner Matthias Robeller

We present high-resolution triple-axis neutron scattering studies of the high-temperature superconductor La1.88Sr0.12CuO4 (T-c = 27 K). The temperature dependence of the low-energy incommensurate magnetic fluctuations reveals distinctly glassy features. Th ...

Amer Physical Soc2013

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We present high-resolution triple-axis neutron scattering studies of the high-temperature superconductor La1.88Sr0.12CuO4 (Tc=27 K). The temperature dependence of the low-energy incommensurate magnetic fluctuations reveals distinctly glassy features. The g ...

American Physical Society2013

The low-energy (epsilon = (h) over bar < 1 meV), low-temperature (T = 0.05 K) spin dynamics of the s = 1/2 kagome candidate herbertsmithite are probed in the presence of magnetic fields up to 2.5 T. The zero-field spectra reveal a very weak continuum of sc ...

Institute of Physics2013

Single crystals of MgCNi3, with areas sized up to 1 mm(2), were grown by the self-flux method using a cubic anvil high-pressure technique. In low applied fields, the dc magnetization exhibited a very narrow transition into the superconducting state, demons ...

Amer Physical Soc2013

A 10 mK scanning tunneling microscope operating in ultra high vacuum and high magnetic fields

Klaus Kern, Markus Etzkorn, Maximilian Assig

We present design and performance of a scanning tunneling microscope (STM) that operates at temperatures down to 10 mK providing ultimate energy resolution on the atomic scale. The STM is attached to a dilution refrigerator with direct access to an ultra h ...

Amer Inst Physics2013

Superparamagnetic anisotropic elastomer connectors exhibiting reversible magneto-piezoresistivity

Thomas Maeder

An anisotropic magnetorheological composite formed by dispersions of silver-covered magnetite microparticles (Fe3O4@Ag) in polydimethylsiloxane (PDMS) displaying electrical conduction only in one preferred direction is presented. A set-up for applying and ...

Elsevier2013