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<identifier identifierType='DOI'>10.1063/1.5080503</identifier>
<creators>
<creator>
<creatorName>Gallego-Parra, S.</creatorName>
<affiliation>Universitatea Politehnică Valencia, Spania</affiliation>
</creator>
<creator>
<creatorName>Gomis, O.</creatorName>
<affiliation>Universitatea Politehnică Valencia, Spania</affiliation>
</creator>
<creator>
<creatorName>Vilaplana, R.</creatorName>
<affiliation>Universitatea Politehnică Valencia, Spania</affiliation>
</creator>
<creator>
<creatorName>Ortiz, H.</creatorName>
<affiliation>Universitatea Politehnică Valencia, Spania</affiliation>
</creator>
<creator>
<creatorName>Perez-Gonzalez, E.</creatorName>
<affiliation>Universidad de La Laguna, Spania</affiliation>
</creator>
<creator>
<creatorName>Luna, R.</creatorName>
<affiliation>Universitatea Politehnică Valencia, Spania</affiliation>
</creator>
<creator>
<creatorName>Rodriguez-Hernandez, P.</creatorName>
<affiliation>Universidad de La Laguna, Spania</affiliation>
</creator>
<creator>
<creatorName>Munoz, A.</creatorName>
<affiliation>Universidad de La Laguna, Spania</affiliation>
</creator>
<creator>
<creatorName>Ursachi, V.V.</creatorName>
<affiliation>Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu", Moldova, Republica</affiliation>
</creator>
<creator>
<creatorName>Tighineanu, I.M.</creatorName>
<affiliation>Universitatea Tehnică a Moldovei, Moldova, Republica</affiliation>
</creator>
<creator>
<creatorName>Manjon, F.</creatorName>
<affiliation>Universitatea Politehnică Valencia, Spania</affiliation>
</creator>
</creators>
<titles>
<title xml:lang='en'>Vibrational properties of CdGa 2 S 4 at high pressure</title>
</titles>
<publisher>Instrumentul Bibliometric National</publisher>
<publicationYear>2019</publicationYear>
<relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>0021-8979</relatedIdentifier>
<subjects>
<subject>Cadmium compounds</subject>
<subject>Calculations</subject>
<subject>Copper compounds</subject>
<subject>Crystal lattices</subject>
<subject>Gallium compounds</subject>
<subject>Raman scattering</subject>
<subject>specific heat</subject>
<subject>Thermal expansion</subject>
<subject>Zinc sulfide</subject>
</subjects>
<dates>
<date dateType='Issued'>2019-03-21</date>
</dates>
<resourceType resourceTypeGeneral='Text'>Journal article</resourceType>
<descriptions>
<description xml:lang='en' descriptionType='Abstract'><p>Raman scattering measurements have been performed in cadmium digallium sulphide (CdGa <sub>2</sub> S <sub>4</sub> ) with defect chalcopyrite structure up to 25 GPa in order to study its pressure-induced phase transitions. These measurements have been complemented and compared with lattice-dynamics ab initio calculations including the TO-LO splitting at high pressures in order to provide a better assignment of experimental Raman modes. In addition, experimental and theoretical Gr&uuml;neisen parameters have been reported in order to calculate the molar heat capacity and thermal expansion coefficient of CdGa <sub>2</sub> S <sub>4</sub> . Our measurements provide evidence that CdGa <sub>2</sub> S <sub>4</sub> undergoes an irreversible phase transition above 15 GPa to a Raman-inactive phase, likely with a disordered rock salt structure. Moreover, the Raman spectrum observed on downstroke from 25 GPa to 2 GPa has been attributed to a new phase, tentatively identified as a disordered zinc blende structure, that undergoes a reversible phase transition to the Raman-inactive phase above 10 GPa.</p></description>
</descriptions>
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<format>uri</format>
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