Ovshinsky Award

 

Noboru Yamada

Curriculum Vitae

Main results in the field of Chalcogenide Materials

My first investigation in the field of chalcogenide glasses concerned the domain of Solid State Ionics. 
With the development of a twin roller fast quenching apparatus, I was able to prepare large series of lithium 
conductive chalcogenide glasses that exhibit very high ionic conductivity and were proposed as solid electrolytes 
for all solid state batteries (Solid State Ionics, 17, 147 (1985), Solid State Ionics, 18-19, 351 (1986)). 
With time, I slowly moved towards a broader study of chalcogenide glasses that included crystalline and glassy, 
bulk and thin film materials with applications in the field of solid state ionics, IR integrated optics, 
information storage and environmental control. In the recent years, three aspects were developed that led to important results: 


*In the domain of Solid State Ionics, my research has been focused on glasses of interest in the development 
of electrical memories and more precisely in the socalled photo-metallization cells (PMC) memories. In the course 
of this investigation, our research team carried out experiments based upon the use of the Electrical Field Microscopy, 
for the first time in the case of inorganic glasses.

Such a technique helped us in visualizing electrical heterogeneousness in Ag-Ge-Se glasses and showed the percolation threshold 
that explain the jump in electrical conductivity observed when increasing the amount of silver in the Ge-Se matrix 
(J. Optoelectr. Adv. Materials 8(6) 2112-2116 (2006); J. Non-Crystalline Solids 353 (2007) 1261- 1263). Additional neutron 
diffraction experiments showed that the Ag-Ag correlations were drastically different below and above the percolation threshold 
(A. Pradel, ANC3, Brasov, Roumania, 2-6 July 2007)

*In the domain of optical storage of information, the main investigation was carried out in the framework of a project (Chalmemstory) 
funded be the french "Agence Nationale de la Recherche" and with A. Kolobov as a co-worker during his stay in Montpellier (2005-2007). 
We studied the changes occurring in the structure of Ge-Sb-Te materials when they were submitted to a large pressure (up to several tenths of GPa). 
The most important result is the amorphization of Ge2Sb2Te5 under pressure. Such a result led us to suggest that the pressure 
is a parameter that should not be neglected when one deals with phase change under a laser beam (Phys.Rev. Letters 97 (2006) 035701).

*Finally, in the framework of a more technological project funded by the European Space Agency, we are currently working at developing 
integrated IR optical devices to be used in spatial interferometers (Appl. Phys. Lett. 90, 011110 (2007)). Such a project led us to develop 
new equipment: a co-evaporator that helped us producing high quality ternary telluride layers and developing waveguides able to transmit light 
in the infrared up to 20 um (Optoelectronics and Adanced Materials - Rapid Communications 1(10), 487 - 490 (2007)).

 

Annie Pradel, University of Montpellier II, France

Curriculum Vitae

Main results in the field of Chalcogenide Materials


1) Topological based theories for compositional trends of the glass transition temperature. Demonstration that connectivity aspects play a key role. There is substantial experimental evidence for his predictions of Tg variation with mean coordination number based on Stochastic Agglomeration Theory. This work for the first time connects " Aspects of Molecular Structure to the Glass Transition Temperature". The prevailing view that Tg is controlled strictly or only by dynamics, has in my opinion caused much misunderstanding in the field. 

2) First phenomenological models for non-mean field effects in glasses. Interpretation of Intermediate phases and rigidity transitions. He wrote a paper with Jim Phillips on Rings and Rigidity- well cited, and an important contribution in the field in understanding at a qualitative level Intermediate Phases in Chalcogenides. He is now editing a book on the subject. 

3) He established a crucial link between elastic nature of networks and fast-ion transport or ionic conduction. The central idea is that network flexibility promotes conduction in solid electrolytes. 

4)Improvement of ab intitio modelling of chalcogenides. Gaining an increased accuracy of electronic models, applied to GeSe2. Recently they have published a paper with Carlo Massobrio on the structure of GeSe4 glass that will appear in PRB. 

5) More recently, Matthieu has been active in developing models of rigidity to phase change materials leading to the rigidity phase diagram in GST materials. This work should open a new perspective enabling to study phase change materials in much the same fashion as network glasses. 

 

Matthieu Micoulaut, Universite Pierre et Marie Curie, France

Curriculum Vitae

    Matthias Wuttig


Date and Place of birth: 20. April 1960, in Mettmann, Germany
Marital status: married with Ph.D. Colette Clarissa Knight
Education:
6/1979: High School diploma, average: 1,1; Geschwister Scholl High School Velbert 
10/1979 - 9/1984: University of Cologne, Germany; Physics Department
10/1984 - 12/1985: Diploma thesis, Institut fuer Grenzflaechenforschung und Vakuumphysik, Forschungszentrum Juelich, Germany "Structure and Dynamics of the clean and adsorbate-covered Cu(100) surface"
12/1985: Diploma in physics, grade: 1,0 (highest degree); University of Cologne, Germany
1/1986 - 6/1988: Ph.D. thesis: Institut fuer Grenzflaechenforschung und Vakuumphysik, Forschungszentrum Juelich, Germany "Relaxation and Reconstruction of metallic surfaces" Thesis advisor: Prof. Dr. Harald Ibach
6/1988: Ph.D., summa cum laude (highest degree); University of Aachen (RWTH), Germany
Professional career:
10/1984 - 12/1985: Student assistant, Institute for Interface Science and Vacuum Physics, Research Center Juelich, Germany
1/1986 - 3/1988: Research assistant, Institute for Interface Science and Vacuum Physics, Research Center Juelich, Germany
9/1986 - 12/1986: Researcher, National Institute for Research in Inorganic Materials, Tsukuba, Japan
since 4/1988: Researcher, Institute for Interface Science and Vacuum physics, Research Center Juelich, Germany
7/1990 - 1/1991: Visiting scientist, Lawrence Berkeley Laboratory, Berkeley, CA, USA
since 10/1991: Scientist within the Fiebiger program at Research Center Juelich
2/1994: "venia legendi" (lecturer) for physics at RWTH University of Technology Aachen, Germany
3/1995 - 4/1995: Visiting professor at CRMC2 - CNRS Marseille, France
5/1995 - 10/1996: Feodor-Lynen Stipend of the Alexander von Humboldt-Foundation at the AT&T Bell Laboratories in Murray Hill, New Jersey, USA
11/1996 √ 9/1997: Scientist, Research Center Juelich, Germany and Consultant, Bell Labs, Lucent Technologies, New Jersey, USA
since 10/1997 Full Professor for Physics of New Materials, I. Institute of Physics, RWTH University of Technology Aachen, Germany
9/1998: Visiting professor at Hangzhou University, Hangzhou, China
8/1999: Visiting professor at Kenyatta University, Nairobi, Kenya
10/2004-10/2006 Vice-Dean of the Faculty of Mathematics, Informatics and Natural Sciences, RWTH University of Technology Aachen, Germany 
3-4, 7-8/2005 Visiting professor at IBM Almaden Research Center, San Jose (CA), USA
9/2005: Visiting professor at Zhejiang University, Hangzhou, China
since 10/2006 Dean of the Faculty of Mathematics, Informatics and Natural Sciences, RWTH University of Technology Aachen, Germany
Awards and Honors:
1979: Prize of the city of Velbert for the best High School Exam
1988: Friedrich-Wilhelm Prize of RWTH Aachen for outstanding achievements within the Ph.D. thesis
1993: Heinz-Maier-Leibnitz Prize of the Ministry for Education and Science for "Chemistry and Physics of thin films and layer systems"
1995: Gaede-Prize of the German Vacuum Society

 

Prof. Matthias Wuttig

"Stanford R. Ovshinsky" Award was founded in 2001, with the aim to recognize the great achievements in the field of chalcogenides. , 

More about Stanford R. Ovshinsky...

Since then, the winners of the award Prize were:

2001  Prof. Stephen R. Elliott (Cambridge University, UK) and Prof. Keiji Tanaka (Hokkaido University, Sapporo, Japan)

2002  Prof. Victor Lyubin (Ben-Gurion University, Negev, Israel) and Dr. Alexander Kolobov (National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan)

2003  Prof. Punit Boolchand (University of Cincinnati, USA) and Prof. Koichi Shimakawa (Gifu University, Japan)

2004  Prof. Hellmut Fritzsche (James Franck Institute, Chicago, USA) and Prof. Mihai Popescu (Institute of Materials Physics, Bucharest, Romania)

2005  Prof. Andrei Andriesh (Academy of Sciences of Moldova, Chisinau, Moldova)

2006  Prof. Miloslav Frumar (University of Pardubice, Czech Republic)

2007  Prof. Matthias Wuttig (I. Physikalisches Institut der RWTH Aachen, Germany)

2008  Prof. Annie Pradel (University of Montpellier II, France)

2009  Prof. Matthieu Micoulaut (Universite Pierre et Marie Curie, Paris, France)

2010  Prof. Noboru Yamada (Panasonic, Japan)

2012  Prof. Gerald Lucovsky (North Carolina State University, USA)