Prediction and observation of formation of Ca–Mg arsenates in acidic and alkaline fluids: Thermodynamic properties and mineral assemblages at Jáchymov, Czech Republic and Rotgülden, Austria
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DOI: 10.1016/j.chemgeo.2020.119922
Abstract: Abstract The underground spaces of the former mines in Jachymov, Czech Republic and Rotgulden, Austria house diverse assemblages of secondary minerals, mostly arsenates. The formation conditions and processes involved with the secondary minerals were deciphered… read more here.
Keywords: observation formation; secondary minerals; czech republic; austria ... See more keywords
Prediction and observation of intermodulation sidebands from anharmonic phonons in NaBr
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DOI: 10.1103/physrevb.103.134302
Abstract: A quantum Langevin model, like models from optomechanics, was developed for phonons. It predicts intermodulation phonon sidebands (IPSs) in anharmonic crystals. Ab initio calculations of anharmonic phonons in rock-salt NaBr showed these spectral features as… read more here.
Keywords: observation intermodulation; anharmonic phonons; prediction observation; phonons nabr ... See more keywords