Raman scattering study of pressure-induced phase transitions in AIIB2IIIC4VI defect chalcopyrites and spinels |
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| Institution: | 1. Institute of Applied Physics, Academy of Sciences of Moldova, 2028 Chisinau, Moldova;2. Laboratory of Low-Dimensional Semiconductor Structures, Technical University of Moldova, 2004 Chisinau, Moldova;3. Departament de Fı́sica Aplicada, Universitat Politècnica de València, EPSA, 03801 Alcoi, Spain;1. Institute of Nuclear Sciences “Vinča”, University of Belgrade, P.O. Box 522, 11001, Belgrade, Serbia;2. Faculty of Physical Chemistry, University of Belgrade, P.O. Box 137, Studentski trg 12-16, 11158, Belgrade, Serbia;3. Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia;1. Division of Creative Low Impact Development and Management for Ocean Port City Infrastructures, Pusan National University, San 30, Jangjeon-dong, Busan 609-735, Republic of Korea;2. Institute of Environmental Studies, Pusan National University, San 30, Jangjeon-dong, Busan 609-735, Republic of Korea;3. Department of Geological Sciences, Pusan National University, San 30, Jangjeon-dong, Busan 609-735, Republic of Korea;4. Department of Environmental Chemistry, Korea Polytechnic VII Collage, Changwon 641-772, Republic of Korea;5. Department of Environmental Engineering, Pusan National University, San 30, Jangjeon-dong, Busan 609-735, Republic of Korea;1. Manonmaniam Sundaranar University, Tirunelveli 627 012, Tamil Nadu, India;2. Department of Physics, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India;1. Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 156-756, Republic of Korea;2. Institute for Shock Physics, Washington State University, Pullman, WA 99164-2816, USA;1. School of Science, Chongqing Jiaotong University, Chongqing 400074, China;2. School of Chemical Engineering and Environment, North University of China, Taiyuan 030051, China;3. Department of Physics, Lanzhou City University, Lanzhou 730070, China;1. Photovoltaic Laboratory, Centre for Research and Technology Energy, Tourist Route Soliman, BP 95, 2050 Hammam-Lif, Tunisia;2. Higher Institute of Applied Science and Technology of Sousse, City Taffala (Ibn Khaldun), 4003 Sousse, Tunisia |
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| Abstract: | AIIB2IIIC4VI defect chalcopyrites (DC) and spinels were investigated by Raman scattering spectroscopy under hydrostatic pressure up to 20 GPa. All these compounds were found to undergo a phase transition to a Raman inactive defect NaCl-type structure. The phase transition is reversible for spinels and irreversible for DC. From the analysis of the pressure behavior of Raman-active modes, it was concluded that the phase transition from spinel to NaCl-type structure is direct in MnIn2S4 and CdIn2S4, while it occurs via an intermediate LiVO2-type NaCl superstructure in MgIn2S4. The observed differences in the pressures and the paths of the pressure-induced phase transitions in AIIB2IIIC4VI compounds are discussed. |
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