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Magnetic and thermodynamic properties of CuxTiSe2 single crystals

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Robust 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 Group2016

Mixing of fresh (river) water and salty water (seawater or saline brine) in a control fashion would produces an electrical energy known as salinity gradient energy (SGE). Two main conversion technologies of SGE are membrane-based processes; pressure retard ...

Amer Soc Mechanical Engineers2016

Converse effect of pressure on the quadrupolar and magnetic transition in Ce3Pd20Si6

Henrik Moodysson Rønnow, Julio Antonio Larrea Jiménez

The heavy fermion compound Ce3Pd20Si6 displays unconventional quantum criticality as the lower of two consecutive phase transitions is fully suppressed by magnetic field. Here we report on the effects of pressure as an additional tuning parameter. Specific ...

Amer Physical Soc2016

Single-domain (110) PbTiO3 thin films: Thermodynamic theory and experiments

Nava Setter, Alexander Tagantsev, Mahamudu Mtebwa, Brahim Dkhil

We report the thermodynamic potential for single-domain (110) thin films epitaxially grown on dissimilar cubic substrates. Using different sets of paraelectric phase elastic compliance coefficients of PbTiO3 single crystal, calculated from the experimental ...

Amer Physical Soc2016

Hydration states of AFm cement phases

Karen Scrivener, Thomas Matschei, Mahsa Saeidpour

The AFm phase, one of the main products formed during the hydration of Portland and calcium aluminate cement based systems, belongs to the layered double hydrate (LDH) family having positively charged layers and water plus charge-balancing anions in the in ...

Pergamon-Elsevier Science Ltd2015

Heat capacity properties of quasi-one-dimensional magnet beta-TeVO4

Helmuth Berger

We studied the temperature dependence of heat capacity C-P(T) of a quasi-one-dimensional magnetic system beta-TeVO4, in a zero magnetic field and a temperature region of 0.1 K

Amer Inst Physics2015

We have used scanning micro x-ray diffraction to characterize different phases in superconducting KxFe2-ySe2 as a function of temperature, unveiling the thermal evolution across the superconducting transition temperature (T-c similar to 32 K), phase separa ...

Amer Physical Soc2015

Superconductivity in semimetallic Bi3O2S3

Henrik Moodysson Rønnow, Lin Yang, Peter Babkevich, David Parker

Here we report a further investigation on the thermodynamic and transport properties, and an assessment of theoretical calculations, for the BiS2- layered Bi3O2S3 superconductor. The polycrystalline sample is synthesized with a superconducting transition t ...

American Physical Society2015

Experimental study and thermodynamic description of the Au-Cu-Ge system

Christian Leinenbach, Shan Jin

Phase equilibria in the Au-Cu-Ge ternary system, including the solid state phase relations at 450 degrees C as well as four vertical sections, were studied by means of scanning electron microscopy (SEM), electron probe microanalysis (EPMA), X-ray diffracti ...

Elsevier Science Sa2014

Picosecond acoustics method for measuring the thermodynamical properties of solids and liquids at high pressure and high temperature

Livia Eleonora Bove Kado

Based on the original combination of picosecond acoustics and diamond anvils cell, recent improvements to accurately measure hypersonic sound velocities of liquids and solids under extreme conditions are described. To illustrate the capability of this tech ...

Elsevier Science Bv2014