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Sans JA, Vilaplana R, da Silva EL, Popescu C, Cuenca-Gotor VP, Andrada-Chacón A, Sánchez-Benitez J, Gomis O, Pereira ALJ, Rodríguez-Hernández P, Muñoz A, Daisenberger D, García-Domene B, Segura A, Errandonea D, Kumar RS, Oeckler O, Urban P, Contreras-García J, Manjón FJ. Characterization and Decomposition of the Natural van der Waals SnSb 2Te 4 under Compression. Inorg Chem 2020; 59:9900-9918. [PMID: 32640163 DOI: 10.1021/acs.inorgchem.0c01086] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
High pressure X-ray diffraction, Raman scattering, and electrical measurements, together with theoretical calculations, which include the analysis of the topological electron density and electronic localization function, evidence the presence of an isostructural phase transition around 2 GPa, a Fermi resonance around 3.5 GPa, and a pressure-induced decomposition of SnSb2Te4 into the high-pressure phases of its parent binary compounds (α-Sb2Te3 and SnTe) above 7 GPa. The internal polyhedral compressibility, the behavior of the Raman-active modes, the electrical behavior, and the nature of its different bonds under compression have been discussed and compared with their parent binary compounds and with related ternary materials. In this context, the Raman spectrum of SnSb2Te4 exhibits vibrational modes that are associated but forbidden in rocksalt-type SnTe; thus showing a novel way to experimentally observe the forbidden vibrational modes of some compounds. Here, some of the bonds are identified with metavalent bonding, which were already observed in their parent binary compounds. The behavior of SnSb2Te4 is framed within the extended orbital radii map of BA2Te4 compounds, so our results pave the way to understand the pressure behavior and stability ranges of other "natural van der Waals" compounds with similar stoichiometry.
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Affiliation(s)
- Juan A Sans
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA-Consolider Team, Universitat Politècnica de València, Valencia, Spain
| | - Rosario Vilaplana
- Centro de Tecnologías Físicas, MALTA-Consolider Team, Universitat Politècnica de València, Valencia, Spain
| | - E Lora da Silva
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA-Consolider Team, Universitat Politècnica de València, Valencia, Spain
| | | | - Vanesa P Cuenca-Gotor
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA-Consolider Team, Universitat Politècnica de València, Valencia, Spain
| | - Adrián Andrada-Chacón
- Departamento de Química-Física, MALTA-Consolider Team, Universidad Complutense de Madrid, Madrid, Spain
| | - Javier Sánchez-Benitez
- Departamento de Química-Física, MALTA-Consolider Team, Universidad Complutense de Madrid, Madrid, Spain
| | - Oscar Gomis
- Centro de Tecnologías Físicas, MALTA-Consolider Team, Universitat Politècnica de València, Valencia, Spain
| | - André L J Pereira
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA-Consolider Team, Universitat Politècnica de València, Valencia, Spain.,Grupo de Pesquisa de Materiais Fotonicos e Energia Renovavel - MaFER, Universidade Federal da Grande Dourados, Dourados, MS 79825-070, Brazil
| | - Plácida Rodríguez-Hernández
- Departamento de Física, MALTA-Consolider Team, Instituto de Materiales y Nanotecnología, Universidad de La Laguna, Tenerife, Spain
| | - Alfonso Muñoz
- Departamento de Física, MALTA-Consolider Team, Instituto de Materiales y Nanotecnología, Universidad de La Laguna, Tenerife, Spain
| | | | - Braulio García-Domene
- Departamento de Física Aplicada-ICMUV, MALTA-Consolider Team, Universidad de Valencia, Valencia, Spain
| | - Alfredo Segura
- Departamento de Física Aplicada-ICMUV, MALTA-Consolider Team, Universidad de Valencia, Valencia, Spain
| | - Daniel Errandonea
- Departamento de Física Aplicada-ICMUV, MALTA-Consolider Team, Universidad de Valencia, Valencia, Spain
| | - Ravhi S Kumar
- Department of Physics, University of Illinois at Chicago, Chicago Illinois 60607-7059, United States
| | - Oliver Oeckler
- Institut für Mineralogie, Kristallographie und Materialwissenschaft, Universität Leipzig, Leipzig, Germany
| | - Philipp Urban
- Institut für Mineralogie, Kristallographie und Materialwissenschaft, Universität Leipzig, Leipzig, Germany
| | | | - Francisco J Manjón
- Instituto de Diseño para la Fabricación y Producción Automatizada, MALTA-Consolider Team, Universitat Politècnica de València, Valencia, Spain
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