Aviva Melchior
7 Papers
26 Citations
Aviva Melchior is an academic researcher. The author has contributed to research in topics: Perovskite (structure) & Diamond anvil cell. The author has an hindex of 4, co-authored 6 publications.
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Papers
Pressure-induced amorphization of La1/3TaO3
TL;DR: In this paper, an A-site cation deficient perovskite, La1/3TaO3, has been studied under pressure by synchrotron X-ray powder diffraction and Raman spectroscopy.
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Image analysis as an improved melting criterion in laser-heated diamond anvil cell
TL;DR: In this article, an image analysis of speckle interference patterns in the laser-heated diamond anvil cell (LHDAC) is presented to define quantitative measures which enable an objective determination of the melting transition.
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Pressure-induced amorphization of A-site-deficient double perovskite Ln1/3MO3 (Ln = Pr, Nd, M = Nb, Ta)
Ori Noked,Aviva Melchior,Reuben Shuker,R. Steininger,Brendan J. Kennedy,E. Sterer +5 more
- 01 Jun 2014
TL;DR: In this article, high-pressure X-ray diffraction measurements have demonstrated that the cation-deficient perovskites Pr1/3NbO3, Pr 1/3TaO3 and Nd1/2TaOO3 undergo irreversible pressure-induced amorphization (PIA).
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Possible monoclinic distortion of Mo2GaC under high pressure
Mark Nikolaevsky,Roee Friedman,Martin Dahlqvist,Mishael Hornik,E. Sterer,Michel W. Barsoum,Johanna Rosen,Aviva Melchior,El’ad N. Caspi +8 more
TL;DR: In this article, high-pressure diffraction results of the Mo-based Mn + 1AXn phase, Mo2GaC, were presented, where a diamond anvil cell was used to compress the material up to 30 GPa, and the structure and unit cell parameters were determined as a function of pressure.
High-pressure structural studies of Li x La 1/3 NbO 3 ( x = 1/6, 1/3, 1/2, 2/3)
Ori Noked,Aviva Melchior,Reuben Shuker,S. Chizawa,Hanns-Peter Liermann,Brendan J. Kennedy,M. Nakayama,E. Sterer +7 more
TL;DR: In this paper, the high pressure behavior of Li-inserted perovskites where Li cations were substituted for the existing vacancies was studied using synchrotron X-ray diffraction and it was shown that all these materials undergo irreversible pressure-induced amorphization around 14.5 GPa regardless of the Li concentration.
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