M
Mark S. Senn
Researcher at University of Warwick
Publications - 51
Citations - 1451
Mark S. Senn is an academic researcher from University of Warwick. The author has contributed to research in topics: Perovskite (structure) & Negative thermal expansion. The author has an hindex of 17, co-authored 45 publications receiving 1158 citations. Previous affiliations of Mark S. Senn include Durham University & University of Oxford.
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Charge order and three-site distortions in the Verwey structure of magnetite
TL;DR: The full low-temperature superstructure of magnetite is determined by high-energy X-ray diffraction from an almost single-domain, 40-micrometre grain, and the emergent order is identified, suggesting trimerons may be important quasiparticles in magnetite above the Verwey transition and in other transition metal oxides.
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Negative thermal expansion in hybrid improper ferroelectric Ruddlesden-Popper perovskites by symmetry trapping.
Mark S. Senn,A. Bombardi,Claire A. Murray,C. Vecchini,A. Scherillo,Xuan Luo,Sang-Wook Cheong +6 more
TL;DR: The hybrid improper ferroelectric mechanism recently proposed by Benedek and Fennie for these Ruddlesden-Popper compounds is confirmed and a systematic strategy for designing and searching for ceramics with large NTE coefficients is suggested.
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Emergence of Long-Range Order in BaTiO 3 from Local Symmetry-Breaking Distortions
TL;DR: The results strongly support the order-disorder picture for these phase transitions, but can also be reconciled with the soft-mode theory of BaTiO_{3} that is supported by some spectroscopic techniques.
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Recipes for improper ferroelectricity in molecular perovskites
TL;DR: The authors use group-theoretical analysis to provide crystal engineering design principles for improper ferroelectricity in molecular perovskites that will enable targeted synthesis of a large family of new acentric functional materials.
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A half-metallic A- and B-site-ordered quadruple perovskite oxide CaCu3Fe2Re2O12 with large magnetization and a high transition temperature.
Wei-Tin Chen,Wei-Tin Chen,Masaichiro Mizumaki,Hayato Seki,Mark S. Senn,Takashi Saito,Daisuke Kan,J. Paul Attfield,Yuichi Shimakawa +8 more
TL;DR: It is shown that an A- and B-site-ordered quadruple perovskite oxide, CaCu3Fe2Re2O12, has spin-polarized conduction electrons and is ferrimagnetic up to 560 K and spin polarization is confirmed by an observed low-field magnetoresistance effect in a polycrystalline sample.