M
M. Calleja
Researcher at University of Cambridge
Publications - 40
Citations - 1086
M. Calleja is an academic researcher from University of Cambridge. The author has contributed to research in topics: Grid & Negative thermal expansion. The author has an hindex of 14, co-authored 40 publications receiving 1013 citations. Previous affiliations of M. Calleja include University of Kent.
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Journal ArticleDOI
Colossal Positive and Negative Thermal Expansion in the Framework Material Ag3[Co(CN)6]
Andrew L. Goodwin,M. Calleja,Michael J. Conterio,Martin T. Dove,John S. O. Evans,David A. Keen,David A. Keen,Lars Peters,Matthew G. Tucker +8 more
TL;DR: This study illustrates how the mechanical properties of a van der Waals solid might be engineered into a rigid, useable framework.
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Trapping of oxygen vacancies on twin walls of CaTiO3: a computer simulation study
TL;DR: In this paper, the atomic structure of the twin walls in orthorhombic CaTiO3 (symmetry Pbnm )a t low temperature (10 K) and their effects on oxygen vacancies were studied.
Journal ArticleDOI
Colossal Positive and Negative Thermal Expansion in the Framework Material Ag3[Co(CN)6].
Andrew L. Goodwin,M. Calleja,Michael J. Conterio,Martin T. Dove,John S. O. Evans,David A. Keen,David A. Keen,Lars Peters,Matthew G. Tucker +8 more
TL;DR: In this paper, it was shown that the van der Waals solid of Ag3[Co(CN)6 exhibits positive and negative thermal expansion an order of magnitude greater than that seen in other crystalline materials.
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Anisotropic ionic transport in quartz: the effect of twin boundaries
TL;DR: In this paper, the authors simulated the transport of Na+ and Li+ under the influence of an electric field in twinned quartz using molecular dynamics techniques and found that the cations are trapped inside twin walls for weak fields along the crystallographic c-axis.
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Structural and magnetic phase transitions in simple oxides using hybrid functionals
Maria Alfredsson,John P. Brodholt,P. B. Wilson,Geoffrey D. Price,Furio Corà,M. Calleja,R. P. Bruin,L. Blanshard,R. P. Tyer +8 more
TL;DR: In this paper, the structural and elastic properties of alkaline earth oxides and FeO were calculated using hybrid exchange functionals within DFT, and it was shown that as the ionicity of the polymorphs increases a higher fraction of Fock-exchange is required to reproduce the structural volumes reported from experiments.