Group leader

Professor Kosmas Prassides

Kosmas Prassides was born in Kavala, Greece and read Chemistry at Oxford University where he also completed his doctoral research on inorganic mixed valency compounds under the supervision of Professor P. Day FRS.
He was then the Drapers' Research Fellow at St. Anne's College, Oxford, working closely with Professor P. N. Schatz (University of Virginia) on the development of the PKS theoretical model for mixed valency systems. Following a spell as Assistant Professor of Chemistry at the University of Crete, Greece, he returned in 1989 to the UK at the University of Sussex where he remained until 2004 and he was successively Lecturer, Reader and Professor of Solid State Chemistry.
In 2005, he took up a Chair in Materials Chemistry at the Department of Chemistry, Durham University. In October 2014, he relocated to Japan where he is currently a Professor at Tohoku University and Principal Investigator at the Advanced Institute for Materials Research (WPI-AIMR).
His research interests are multi-disciplinary and encompass a range of structural, magnetic and electronic problems in modern materials, straddling the areas of condensed matter physics and chemistry.
His primary focus is currently on the study of strongly correlated electron systems, which typically display remarkable electronic properties that challenge existing theory for satisfactory explanations. The delicate balance between localised and itinerant behaviour related to the strongly correlated nature of the systems and the metallic, insulating and superconducting states lie at the heart of his ongoing research.
He has been using core chemical approaches to access unusual structures and electronic, conducting and magnetic ground states and probe the physics in key materials, especially metal fulleride solids. He has advanced the understanding of molecular superconductivity and magnetism and the generic problem of the metal-Mott insulator transition, unveiling the fullerides as model members of the high-Tc superconductivity family, potentially holding the key to the understanding of the pre-requisites for high-Tc superconductivity when electron correlation is important.

Assistant Professor

Dr. Yasuhiro Takabayashi
E-mail : yasuhiro.takabayashi.e4[at]

[Research Theme]
My research interests are in the relationship between crystal structures and physical properties of novel materials, such as molecular superconductors and magnets.
Prominently, my research addresses the properties of unconventional fullerene-based superconductors which are isotropic 3D molecular solids. I aim to control the physical properties by chemical (composition) and physical (pressure, temperature, magnetic field) manipulation and access novel electronic states of matter. My research expertise encompasses a variety of experimental techniques at both ambient and elevated pressures (synchrotron X-ray and neutron diffraction, magnetometry, thermodynamic and transport measurements, μSR spectroscopy).

[Other interests]
Town cycling

Research Associates

Dr. Takeshi Nakagawa
E-mail : takeshi.nakagawa.b5[at]

[Research Theme]
My research interests lie in the field of molecular solid state chemistry involving synthesis and characterization of new materials. My recent research has been concentrated on organic carbon-based molecular systems in search of new high temperature superconductors. Such systems include fullerene-based 3D and polycyclic aromatic hydrocarbon-based quasi-2D molecular solids.
The major techniques employed for investigating these materials include synchrotron X-ray powder/neutron diffraction, magnetometry, vibrational, and muSR spectroscopy. We aim to understand their physical properties as a variety of external stimuli (temperature, pressure, magnetic field, light irradiation) are applied.

[Other interests]
Watching/playing sports and drinking whisky
Dr. Martina Vrankic
E-mail : vrankic.martina.e7[at]

[Research Theme]
My research interests lie in the filed of theoretical and experimental knowledge on contemporary methodology regarding crystal structure and microstructure determination whereas my reserach achievements are closely linked with conducting XRPD experiments both at ambient conditions as well as in-situ high temperature measurements. I am focused on the development of preparation pathways for the synthesis of various inorganic and inorganic-organic hybrid materials as well as on the structural characterization of prepared compounds by the XRPD technique.
[Other interests]
Spending time in the nature, cycling, solving sudoku tricks


Yuki Fujimori
E-mail : yuki.fujimori[at]

I am a new secretary of Prassides Lab since spring 2015. I used to be a director in the graphic design industry, and then went to the USA to study Marketing. I am excited to work at AIMR and meet new people here. What I like to do in my free time are watching figure skating and Japanese traditional tea ceremony which I have been learning for 20 years.

Former Members

Professor Denis Arčon (1999-2000)
Professor, Faculty of Mathematics and Physics, Josef Stefan Institute, Ljubljana, Slovenia
E-mail : denis.arcon[at]
Professor Ioannis Arvanitidis (2001-2003)
Associate Professor, Department of Physics, Aristotle University of Thessaloniki, Greece
E-mail : jarvan[at]
Dr. Stathis Aslanis (D.Phil. Sussex, 1998-2002)
Dr. Kieren Brigatti (D.Phil. Sussex, 2000-2004)
Professor Craig M Brown (D.Phil. Sussex, 1995-1998)
Staff Chemist, NIST Center for Neutron Research, Maryland and Adjunct Professor, Chemical Engineering, University of Delaware, USA
E-mail : craig.brown[at]
Dr. A. Johan C. Buurma (2013-2014)
Researcher, Oxford Photovoltaics
E-mail : johan.buurma[at]
Professor Christos Christides (1990-1993; 2005-2006)
Associate Professor, School of Engineering, University of Patras, Greece
E-mail : christides[at]
Dr. Ross H. Colman (2012-2014)
Dr. Veaceslav Coropceanu (1997-1998)
Principal Research Scientist, Department of Chemistry, Georgia Institute of Technology, USA
E-mail : coropceanu[at]
Dr. Annaig Dennis (2004-2005)
Dr. Gyongyi Pergerne Klupp (2014-2016)
Department of Chemistry, Durham University, UK
E-mail : gyongyi.pergerne-klupp[at]
Professor Kostas Kordatos (1994-1998, D.Phil. Sussex)
Associate Professor in Chemistry, National Technical University, Athens, Greece
E-mail : kordatos[at]
Professor Alexandros Lappas (1989-1993, D.Phil. Sussex; 1996-1998)
Research Director, Institute of Electronic Structure and Lasers, Foundation for Research and Technology Hellas, Heraklion, Greece
E-mail : lappas[at]
Professor Wenzhi Li (1997-1998)
Professor, Department of Physics, Florida International University, Miami, USA
E-mail : liw[at]
Dr. Minfeng Lu (2015-2016)
Research Associate, ChangChun Institute of Applied Chemistry, China
E-mail :[at]
Professor Roderick M. Macrae (1992-1994)
Associate Professor of Chemistry, Marian University, Indianapolis, USA
E-mail : rmacrae[at]
Professor Serena Margadonna (1997-2000, D.Phil. Sussex)
Professor, College of Engineering, Swansea University, UK
E-mail : s.margadonna[at]
Professor Irene Margiolaki (1999-2003, D.Phil. Sussex)
Assistant Professor, Department of Biology, University of Patras, Greece
E-mail : imargiola[at]
Dr. Alison J Marks (1990-1992)
Lecturer, Department of Chemistry, University of Bradford, UK
E-mail : A.J.Marks[at]
Dr. Beatrice Maroni (2010-2011)
Dr. Isabelle Maurin (2000-2002)
Researcher, Ecole Polytechnique, CNRS, Palaiseau, France
E-mail : isabelle.maurin[at]
Dr. Martin T McDonald (2005-2010, PhD Durham)
E-mail : martin.t.mcdonald[at]
Dr. Melita Menelaou (2015-2017)
Senior Researcher, Central European Institute of Technology (CEITEC), Brno University of Technology, Brno, Czech Republic
E-mail : Melita.Menelaou[at]
Professor Alvaro Mombru (1993-1994, M.Phil. Sussex)
Professor of Physics, Universidad de la Republica, Montevideo, Uruguay
E-mail : amombru[at]
Dr. Alex V Nikolaev (1993-1994, 1997-1998)
Leading researcher, Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Russia
E-mail : alex_benik[at]
Dr. Esma Okur (2011-2016, PhD Durham)
Researcher, Department of Chemistry, Bursa Technical University, Turkey
E-mail : esma.okur[at]
Professor Konstantinos Papagelis (2001-2003)
Assistant Professor, Department of Materials Science, University of Patras, Greece
E-mail : kpapag[at]
Dr. Manolis Roubelakis (2009)
Researcher, Air Products and Chemicals Inc., Pennsylvania, USA
E-mail : mroubelakis[at]
Dr. Stephan Rouziere (1999-2000)
Researcher, Laboratoire de Physique des Solides - UMR 8502, Universite Paris Sud, Orsay, France
E-mail : stephan.rouziere[at]
Dr. Masafumi Sakata (2013-2014)
Project Assistant Professor, KYOKUGEN, Osaka University, Japan
E-mail : sakata[at]
Dr. Robert Sobota (2016-2017)
Researcher, Toyota Technological Institute
E-mail : sobota[at]
Dr. Nikos Tagmatarchis (1997-1999)
Director of Research, National Hellenic Research Foundation, Athens, Greece
E-mail : tagmatar[at]
Dr. Ruth H Zadik (PhD Durham, 2010-2015)
Publishing Editor, Royal Society of Chemistry, Cambridge, UK
E-mail : ruthzadik[at]