Catriona A. Crawford

ORCID: 0000-0003-3806-8687
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About
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Research Areas
  • Liquid Crystal Research Advancements
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Photonic Crystals and Applications
  • Photochromic and Fluorescence Chemistry
  • Multiferroics and related materials
  • Luminescence Properties of Advanced Materials
  • Advanced Battery Materials and Technologies
  • Advanced Condensed Matter Physics
  • Microwave Dielectric Ceramics Synthesis
  • Molecular spectroscopy and chirality
  • Machine Learning in Materials Science
  • Inorganic Fluorides and Related Compounds
  • Surfactants and Colloidal Systems
  • Ferroelectric and Piezoelectric Materials
  • Magnetism in coordination complexes
  • Metal complexes synthesis and properties
  • Plant Reproductive Biology
  • Metal-Catalyzed Oxygenation Mechanisms
  • Advancements in Battery Materials

University of Warwick
2024

University of Liverpool
2023

University of Aberdeen
2018-2020

King's College Hospital
2018-2020

The syntheses and characterisation of the first 10 homologues 1-(4-cyanobiphenyl-4′-yl)-6-(4-alkyloxyanilinebenzylidene-4′-oxy)hexanes (CB6O.Om) are reported. All exhibit nematic, N, twist-bend NTB, phases. In addition, an intercalated, anticlinic smectic C, SmCA, phase is observed for m = 3–5. A second seen 4,5 but which no structural information was obtained. For short chain lengths, local packing in nematic phases intercalated arrangement. As length increases monolayer fluctuations both...

10.1080/02678292.2018.1525503 article EN Liquid Crystals 2018-10-16

Abstract The application of machine learning models to predict material properties is determined by the availability high-quality data. We present an expert-curated dataset lithium ion conductors and associated conductivities measured a.c. impedance spectroscopy. This has 820 entries collected from 214 sources; contain a chemical composition, expert-assigned structural label, ionic conductivity at specific temperature (from 5 873 °C). There are 403 unique compositions with near room (15–35...

10.1038/s41524-022-00951-z article EN cc-by npj Computational Materials 2023-01-16

We report a new nickel hydroxyfluoride diaspore Ni(OH)F prepared using hydrothermal synthesis from NiCl2·6H2O and NaF. Magnetic characterization reveals that, contrary to other reported transition-metal diaspores, displays weak ferromagnetism below the magnetic ordering temperature. To understand this difference, neutron diffraction is used determine long-range structure. The structure found be distinct those for diaspores shows an antiferromagnetic spin in which ferromagnetic canting...

10.1021/acs.inorgchem.4c00679 article EN cc-by Inorganic Chemistry 2024-05-09

The critical behavior at the transition from uniform nematic to twist-bend modulated phase is revealed and shown be well explained by mean field approximation. study was performed on a group of materials that exhibit an unusually broad temperature range above phase, so in which order parameter fluctuations are strong can experimentally observed wide. formation instantaneous helices already several degrees temperature, strongly influencing birefringence system. analysis part changes provides...

10.1103/physreve.98.052706 article EN Physical review. E 2018-11-26

The best piezoelectric properties of any perovskite oxide known are found in the solid solution relaxor Pb(Mg1/3Nb2/3)O3 and ferroelectric PbTiO3. Despite its impressive properties, this system has limited analogy. We present compositional exploration Pb-free analogue (1-x)(K1/2Bi1/2)(Mg1/3Nb2/3)O3-x(K1/2Bi1/2)TiO3 (KBMN-KBT). locate morphotropic phase boundary between x = 0.86 0.88 changing from Cm to Pm symmetry optimally performing composition at 0.88. report a figure merit (d33*) 192 pm...

10.1016/j.actamat.2023.119594 article EN cc-by Acta Materialia 2023-12-13

Abstract The synthesis of a Cu 4 (OH) cube which is coordinated by four molecules the dipyridyl ligand 1,6‐[di(pyridin‐4‐yl)hex‐3‐ene] reported. This compound has trans double bond restricts conformational freedom and favours coordination within unique copper cube. structure was solved an X‐Ray single crystal determination low temperature magnetic susceptibility measurements examined its properties. classification corresponds to type I Mergehenn Haase short/long distribution ⋅⋅⋅ separations...

10.1002/open.201900260 article EN cc-by-nc-nd ChemistryOpen 2019-09-01
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