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| Peter Day | |
|---|---|
| Name | Peter Day |
| Birth date | 1938 |
| Death date | 2023 |
| Nationality | British |
| Fields | Chemistry, Materials Science, Solid-state Chemistry |
| Institutions | University of Oxford, University of Cambridge, Imperial College London, University of Leeds, National Physical Laboratory |
| Alma mater | University of London, University of Cambridge |
| Notable students | Malcolm Green, John Goodenough, Alan MacDiarmid |
| Known for | Mixed-valence compounds, Spectroscopy, Inorganic chemistry |
| Awards | Royal Society Fellowship, Davy Medal, Faraday Medal |
Peter Day was a British chemist whose work on inorganic solids, mixed-valence compounds, and electronic spectroscopy shaped late 20th-century materials science and solid-state chemistry. His research bridged experimental techniques developed at institutions such as the University of Cambridge and the National Physical Laboratory with theoretical frameworks influenced by figures from the Royal Society and the Royal Institution. Day served in senior roles at the University of Oxford and contributed to interdisciplinary collaborations with laboratories at Imperial College London and the University of Leeds.
Born in 1938, Day studied chemistry at the University of London where he completed undergraduate training that exposed him to laboratories linked to the Royal Society and the Chemical Society (Great Britain). He pursued postgraduate research at the University of Cambridge under supervisors connected to research groups with ties to the Royal Institution and returned to academic posts that intersected with work by members of the Royal Society of Chemistry and scholars associated with the Faraday Society. His early training placed him among contemporaries who later held chairs at institutions including Imperial College London and the University of Oxford.
Day held faculty positions across leading UK universities and research institutes, including appointments at the University of Cambridge, the University of Oxford, and collaborative posts with the National Physical Laboratory. He served on departments that cooperated with the Royal Society and hosted visiting scientists from the Massachusetts Institute of Technology, the California Institute of Technology, and the Max Planck Society. His administrative roles connected him to funding bodies such as the Engineering and Physical Sciences Research Council and advisory panels linked to the British Academy and the Science and Technology Facilities Council. He supervised doctoral students who later joined faculties at the University of Manchester, the University of Birmingham, and international centers such as the University of Tokyo and the École Normale Supérieure.
Day made seminal contributions to understanding electronic properties of inorganic solids, especially mixed-valence compounds and transition-metal oxides. He advanced spectroscopic methods including optical conductivity and electron paramagnetic resonance that were applied in collaborations with groups at the Cavendish Laboratory, the Rutherford Appleton Laboratory, and the ISIS Neutron and Muon Source. His work clarified charge-transfer mechanisms relevant to materials studied at the Bell Laboratories, the IBM Research labs, and research teams associated with the Royal Institution. He published studies that influenced theoretical approaches championed by scholars at the University of Pennsylvania and the University of Cambridge, shaping models later used by researchers at the Argonne National Laboratory and the Los Alamos National Laboratory.
Day’s investigations into structure–property relationships linked crystallographic analysis from the Crystallographic Association and diffraction facilities at the Diamond Light Source with electronic measurements pursued by groups at the National Institute of Standards and Technology and the European Synchrotron Radiation Facility. He collaborated with chemists and physicists who were active in societies such as the Royal Society of Chemistry and the Institute of Physics, and his cross-disciplinary work intersected with research on superconductivity at the University of Cambridge and magnetism studies at the Max Planck Institute for Chemical Physics of Solids.
Over his career Day received recognition from major scientific bodies, including election to the Royal Society and awards from the Royal Society of Chemistry and the Faraday Division. He was awarded medals and lectureships that also honored figures associated with the Davy Medal and the Copley Medal legacy, and delivered named lectures at venues including the Royal Institution and the Royal Society. International honors brought invitations from the American Chemical Society and fellowships linked to the Max Planck Society and the Alexander von Humboldt Foundation.
Day’s personal interests included engagement with public scientific outreach through institutions such as the Royal Institution and contributions to policy discussions involving the Science and Technology Committee (House of Commons). He maintained collaborations that spanned the Commonwealth Scientific and Industrial Research Organisation and visiting fellowships at the California Institute of Technology. Family and local ties connected him to regional universities such as the University of Leeds and community science initiatives affiliated with the British Science Association.
Day’s legacy persists in contemporary materials science curricula and in methodologies adopted across laboratories at the University of Oxford, the University of Cambridge, and international centers like the Max Planck Society and the Argonne National Laboratory. His students and collaborators populate faculties at the Imperial College London, the University of Manchester, and the University of Tokyo, continuing work on mixed-valence chemistry, spectroscopy, and functional oxides. The techniques and conceptual frameworks he developed feed into current research agendas at the European Research Council-funded projects and at multinational research consortia involving the National Physical Laboratory and the Diamond Light Source.
Category:British chemists Category:1938 births Category:2023 deaths