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The vibrational properties of Al 0.2 Ga 0.3 In 0.5 P:Be films grown on (100) GaAs substrates by solid source molecular beam epitaxy varying the phosphorous cracking-zone temperature (PCT) were studied by Raman spectroscopy. The Raman-intensity ratio between the allowed longitudinal optical and the forbidden transverse optical (TO) phonons, and the full width at half maximum...
Studies of interfacial processes involving leaching bacteria and sulfide minerals (MS) are necessary to understand and improve the bioleaching processes of mining industries. Interfacial studies of the role of extracellular polymeric substances (EPSs) during cell attachment to MS have been restricted mainly to iron-oxidizing bacteria, neglecting interfacial mechanisms associated with the biooxidation...
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