New website launched
Welcome to the Prassides Group website
Our research interests are multi-disciplinary and encompass a range of structural, dynamic, magnetic, and electronic problems in contemporary materials science, straddling condensed matter physics and chemistry and impact on diverse sectors of science and technology, both via materials with new figures of merit for near-term applications and by generating new properties which challenge accepted understanding.
We use core chemical approaches to access unusual structures and electronic, conducting, and magnetic ground states and probe the physics in key proof-of-concept materials, including mixed valency systems, porous framework materials, low-dimensional magnetic solids and photo-switchable molecular magnets, intermetallic Kondo insulators, superconducting oxides, borides, and pnictides, carbon nanotubes, fullerenes and heterofullerenes, and their superconducting and ferromagnetic derivatives.
What's new
2024
- January 2024
A Special Issue on the “Structure and Properties of Novel Superconductors, Magnetic, and Functional Materials”
was published by the Journal of Physics and Chemistry of Solids to celebrate the 65th Birthday of Professor Prassides. The Editors of the Special Issue were Professors Craig Brown, Denis Arcon, and Arun Bansil.
2023
- 26 December 2023
A paper entitled “Instability of the Pa-3 fulleride Cs3C60 at ambient pressure and superconducting state of the fcc phase” was published in Physical Review B.
- 18 December 2023
End-of-year dinner at Mozu, close to the OMU Nakamozu campus.
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- 7 December 2023
Professor Daniel R. Talham from the University of Florida visited our Department and gave a colloquium entitled “How the Solid-Solvent Interface Changes Phase Stability and Host-Guest Chemistry in Layered Solids”
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- 27 November 2023
Kosmas Prassides gave an invited lecture entitled “Something old, something new, something blue” at the Phase Transition and Dynamical Properties of Spin Transition Materials (PDSTM 2023) held at the University of Tokyo, Japan.
- 27 November 2023
A paper entitled “Electron injection into superconducting trivalent fullerides close to the Mott transition boundary” was published in Modern Physics Letters B.
- 20-21 September 2023
Keisuke Matsui (D2 student) gave a poster presentation entitled “Development of Pentavalent Fulleride Systems: Synthesis, Structural Studies and Electronic Properties” at the International Symposium of the Graduate School of Engineering, Osaka Metropolitan University: World-Leading Engineering Research, held at Osaka International Convention Center. His presentation was awarded as “Excellent Poster Award”.
Naoya Yoshikane (D3 student) also gave a poster presentation entitled “Pressure Induced Self-doping in Mixed-valent Molecular Solids, RE2.75C60” at the same meeting.
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- 1 September 2023
A new member, Research Associate Dr. George Bacanu joined our laboratory.
- 31 August – 2 September 2023
Keisuke Matsui (D2 student) gave a poster presentation entitled “Effect of electron injection into superconducting trivalent fullerides close to the Mott transition boundary” at The 9th TKU-ECUST-KIST-OMU-UH-IHU-KMITL-UTAR-TNU-HUFI Joint Symposium on Advanced Materials and Applications (JSAMA-9), held at University of Hyogo. His presentation was awarded as “Outstanding Poster Award”.
Mizuki Suzuki and Akane Matsumoto (M2 students) also gave poster presentations entitled “Search for superconducting fullerides by alkaline-earth doping” and “Alkali-intercalation chemistry of hybrid molecular solids derived from C60 and polyaromatic hydrocarbons”, respectively, at the same meeting.
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- 2-4 August 2023
Marina Nishiura gave a poster presentation entitled “Structural changes induced by alkali metal substitution in Prussian Blue analogues” at the 2023 Summer School of the Young Coordination Chemists’ Association of Japan, held at Kyushu University. Her presentation received a “Chemistry Letters Young Researcher Award”.
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- 26 July 2023
A paper entitled “Mixed orbital states and modulated crystal structures in La1−xCaxMnO3 deduced from synchrotron X-ray diffraction” was published in Communications Physics.
- 27 June 2023
Kosmas Prassides gave an invited lecture entitled “Coupling of lattice and electronic degrees of freedom in mixed-valence rare-earth fullerides” at the International Conference on Quantum in Complex Matter, Superstripes 2023, held in Ischia, Italy.
- 23 May 2023
A paper entitled “Isosymmetric Lattice Collapse in Mixed-Valence Rare-Earth Fullerides at High Pressure─Coupling of Lattice and Electronic Degrees of Freedom” was published in the Journal of Physical Chemistry C (highlighted as Supplementary cover of the June 2023 issue of volume 127).
- 8-12 May 2023
Kosmas Prassides and Naoya Yoshikane gave invited oral presentations entitled “Spontaneous magnetoelastic effects in Prussian blue analogue molecular magnets” and “Coupling of structural and electronic behaviors in mixed-valence RE2.75C60”, respectively, at the 2023 Joint CTMNM/NAGC Conference, Spetses, Greece.
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- 1 April 2023
Naoya Yoshikane was awarded a Fellowship by the Overseas Challenge Program for Young Researchers of the Japan Society for the Promotion of Science (JSPS) to undertake a research project for 3 months at the NIST Center for Neutron Research in Gaithersburg, Maryland, USA under the supervision of Prof. Craig Brown.
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- 1 April 2023
Following his retirement, Professor Prassides moved to the Department of Physics, Graduate School of Science as a Guest Researcher. At the same time, he was appointed as an Adjunct Professor at the Faculty of Engineering, Department of Mechanical and Electrical Systems Engineering, Kyoto University of Advanced Science.
- 24 March 2023
Today Airi Tada (M2 student) successfully completed her Masters’ degree studies. Three B4 students – Kyohei Kawamura, Ryuhei Mimura, and Tsutomu Uraji also graduated successfully.
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- 24 March 2023
Airi Tada (M2 postgraduate student) received the Department of Materials Science award ― Silver Medal ― for her graduation presentation entitled “Valence-electron-count and chemical composition control of superconductivity in high-entropy alloys”.
Ryuhei Mimura, Uraji Tsutomu, and Kyohei Kawamura (B4 postgraduate students) gave graduation presentations entitled “Effect of electron count on the superconductivity of the NbHfZrTi medium entropy alloys”, “Synthesis, characterization, and ab-initio structural investigation of C60-coronene co-crystal”, and “Influence of guest molecules on the structural and magnetic properties of Prussian Blue analogues”, respectively. Ryuhei Mimura was awarded the Department of Materials Science Gold Medal award. Kyohei Kawamura received a research encouragement award.
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- 24 March 2023
We had an end of academic year party at Fukuden, close to Nakamozu campus after graduation celebration ceremony.
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- 6 January 2023
A paper entitled “Evolution of the magnetic structure in overdoped antiferromagnetic La1-xCaxMnO3 (0.51 ≤ x ≤ 0.69) manganites: A neutron diffraction study” was published in Physical Review B.