Search results for "Pressure-temperature"

showing 2 items of 2 documents

Synthesis and characterization of indium oxide at high pressures

2018

Introducción: La naturaleza es sorprendente pero a la vez limitada. A mi entender, nada tiene más potencial que aplicar el ingenio humano para modificar lo que nos rodea y crear algo completamente nuevo. La Física de la Materia Condensada es un campo que actualmente está ganando importancia en la Física moderna. En virtud de los éxitos logrados en Física de la Materia Condensada se han producido enormes avances en el campo de la electrónica cuántica, de los semiconductores y de la ciencia de materiales, teniendo como resultado numerosas aplicaciones tecnológicas que han cambiado nuestras vidas drásticamente en los últimos 50 años. Una de las ramas de la Física de la Materia Condensada es el…

Multi-anvil pressDiamond-anvil cellCharacterization under pressureOptical absorptionPressure sensorUNESCO::FÍSICAEquations of stateNanocrystallinePressure transmitting mediumBulkPressure-temperature phase diagramParis-Edinburg pressX-ray diffractioncorundum-type structure (R-3c):FÍSICA [UNESCO]Indium oxide (In2O3)Raman spectroscopycubic structure (Ia-3)High-pressure high-temperature synthesisPbcn phaseAb initio calculationsPbca phaseScanning electron microscopySynchrotron radiation sources
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Temperature- and pressure-dependent structural study of {Fe(pmd) 2[Ag(CN)2 ]2}n spin-crossover compound by neutron Laue diffraction

2014

The effect of pressure (up to 0.17GPa) on the spin-crossover compound {Fe(pmd)2[Ag(CN)2]2} n [orthorhombic isomer (II), pmd = pyrimidine] has been investigated by temperature- and pressure-dependent neutron Laue diffraction and magnetometry. The cooperative high-spin ↔ low-spin transition, centred at ca 180K at ambient pressure, is shifted to higher temperatures as pressure is applied, showing a moderate sensitivity of the compound to pressure, since the spin transition is displaced by ca 140KGPa-1. The space-group symmetry (orthorhombic Pccn) remains unchanged over the pressure-temperature (P-T) range studied. The main structural consequence of the high-spin to low-spin transition is the c…

Pressure-temperatureChemistryMetals and AlloysSpin transitionChromophoreChromophoresAtomic and Molecular Physics and OpticsSpin-crossover compoundsElectronic Optical and Magnetic MaterialsCrystallographyOctahedronSpin crossoverX-ray crystallographyMaterials ChemistryNeutronOrthorhombic crystal systemMagnetic materialsAmbient pressure
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