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Sekar M, Shekar NC, Babu R, Sahu PC, Sinha A, Upadhyay A, Singh M, Babu KR, Appalakondaiah S, Vaitheeswaran G, Kanchana V. High pressure structural behavior of YGa2: A combined experimental and theoretical study. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.01.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Tillard M, Belin C. Investigation in the Binary System Yb−Ga: Crystal Structure of the Ga-Rich Compound YbGa 3.34. Inorg Chem 2009; 48:9250-7. [DOI: 10.1021/ic901059q] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Monique Tillard
- Agrégats, Interfaces, Matériaux pour l'Énergie Institut Charles Gerhardt, UMR 5253 CNRS UM2, CC015, Université de Montpellier 2, Sciences et Techniques du Languedoc, 2 Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Claude Belin
- Agrégats, Interfaces, Matériaux pour l'Énergie Institut Charles Gerhardt, UMR 5253 CNRS UM2, CC015, Université de Montpellier 2, Sciences et Techniques du Languedoc, 2 Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
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Brouskov V, Hanfland M, Pöttgen R, Schwarz U. Structural phase transition of CeAuGe at high pressure. ACTA ACUST UNITED AC 2009. [DOI: 10.1524/zkri.220.2.122.59121] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Structural properties of the ternary intermetallic compound CeAuGe were investigated at hydrostatic pressures up to 15 GPa with high-resolution angle dispersive X-ray powder diffraction using synchrotron radiation and the diamond anvil cell technique. At 8.7(7) GPa a first order phase transition is observed from a hexagonal NdPtSb-type arrangement into an orthorhombic high-pressure modification with a TiNiSi-type crystal structure. The transformation is associated with a 3% shortening of the lattice parameter perpendicular to the puckered layers [AuGe]n and an elongation of one of the lattice parameters within the plane of the layers. The changes of interatomic distances are more pronounced than the metrical alterations and indicate that a transition from layer-type poly anions into a 3D network [AuGe]n is associated with the structural transformation.
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