Welcome to the Homepage of Prof. Dr. Claudia Felser

01.11.2013: Young researchers from Max Planck Institute and Weizmann Institute of Science win the ARCHES prize for research cooperation and high excellence in science
The ARCHES prize of this year is awarded to Dr. Binghai Yan from Max Planck Institute for Chemical Physics of Solids and Dr. Erez Berg from the Weizmann Institute of Science, to recognize and reward their outstanding contributions to research on topological states of matter as well as to strengthen German-Israeli scientific collaboration. ... Link 
23.10.2013: Stuart Parkin fellow of the Gutenberg Research College and world known expert in Spintronics receives the Alexander von Humboldt Professorship
Alexander-von-Humboldt-Professur
Spitzenphysiker für die Uni Halle

Die Hochschule und das Max-Planck-Institut wollen den renommierten Professor Stuart Parkin aus den USA holen. Mit der Alexander-von-Humboldt-Professur will die Uni ein Zentrum für Nano-Wissenschaft aufbauen.

Quelle: Mitteldeutsche Zeitung, http://www.mz-web.de/mitteldeutschland/alexander-von-humboldt-professur-spitzenphysiker-fuer-die-uni-halle,20641266,24755252.html

23.10.2013: Jairo Sinova receives the AvH Professorship in Mainz which will further strengthen Spintronics in Germany
Mainz University receives approval for an Alexander von Humboldt Professorship in Physics
Jairo Sinova chosen for Humboldt Professorship in Theoretical Physics ... Link 
25.09.2013: Researchers from Dresden and Mainz present a new multifunctional topological insulator material with combined superconductivity
New material combines different, at first view contradicting properties with a high potential for future quantum electronics and computation  ... Link 
19.04.2013: Humboldt Research Award for Michael Coey, Trinity College, Dublin
Renowned materials scientist comes to Germany at the invitation of researchers at the MPI Chemical Physics for Solids, Dresden and the IFW Dresden Focus lies on joint research for new rare-earth free permanent magnets ... Link 
Mainz und Kaiserslautern liefern Spitzentechnologie für die Wirtschaft
Gemeinsame Großforschungsprojekte für Materialwissenschaft und Spintronik der Universitäten Mainz und Kaiserslautern bieten hohes Umsetzungspotenzial ... Link 
Open Positions

comCIGS II: Ab initio simulation of interfacial phenomena in Cu(In,Ga)Se2 solar cells

Doktorarbeit / PhD Research Position:Atomic scale mechanisms at surfaces andinterfaces in thin films solar cells

13.12.2012: Stuart Parkin recognized for great service to interdisciplinary materials research
Experimental physicist Stuart Parkin of the IBM Almaden Research Center in San Jose, California and member of the Gutenberg Research College received the 2012 Von Hippel Award  ... Link 
07.12.2012: Claudia Felser appointed Fellow of the American Physical Society

Chemist receives high distinction for her research into new materials Chemikerin erhält hohe fachliche Auszeichnung für die Erforschung von neuen Materialien

... Link 
26.10.2012: Topologische Isolatoren – vom Materialdesign zur realen Anwendung
Sonderheft der physica status solidi-Rapid Research Letters präsentiert aktuellste Erkenntnisse zu Eigenschaften und Anwendungen dieser Materialklasse.

Die erst vor wenigen Jahren entdeckte Materialklasse der Topologischen Isolatoren zeichnen sich durch ihre herausragende Eigenschaft aus, im Innern elektrisch isolierend zu sein, an der Oberfläche jedoch leitende Zustände auszubilden. Das Besondere an topologischen Isolatoren ist die extreme Stabilität ihrer Oberflächenzustände.

Gasteditoren Claudia Felser, Shoucheng Zhang und Binghai Yan von der Johannes Gutenberg-Universität Mainz und dem Max-Planck-Institut in Dresden fangen den aktuellen Forschungsstand bezüglich Eigenschaften und Anwendungen dieser Materialklasse in einer erstklassigen Momentaufnahme ein. 

... Link 
22.02.2012: Ministerpräsident Kurt Beck verleiht Honorarprofessur an Materialwissenschaftlerin Claudia Felser
Direktorin des Max-Planck-Instituts für Chemische Physik fester Stoffe in Dresden bleibt eng mit der JGU verbunden   ... Link 
Claudia Felser wird neue Direktorin am Max-Planck-Institut für Chemische Physik fester Stoffe
Professorin Dr. Claudia Felser von der Johannes Gutenberg-Universität Mainz ist seit dem 1. Dezember 2011 neue Direktorin des Max-Planck-Instituts für Chemische Physik, Dresden. Neben ihrer Professur an der Johannes Gutenberg-Universität Mainz, die sie als Direktorin des MPI CPfS auch weiterhin wahrnehmen wird, ist Prof. Felser Sprecherin der deutsch japanischen DFG-JST-Forschergruppe ASPIMATT "Advanced spintronic materials and transport phenomena" und Direktorin der Graduiertenschule der Exzellenz "Materials Science in Mainz (MAINZ)" zusammen mit Prof. Dr. Mathias Kläui. ... Link 
06.12.2011: Humboldt Research Award for Top US Researcher Robert J. Cava of Princeton
Renowned materials scientist comes to Germany at the invitation of researchers at Mainz University and the Karlsruhe Institute of Technology / Focus on superconductors ... Link 
08.11.2011: MAINZ PhD student receives Hugh Stott Taylor Prize of Princeton University for outstanding academic performance.
Leslie Schoop is currently pursuing a double PhD degree at the University of Mainz and at Princeton University. Due to her excellent academic record, the Princeton Graduate School has awarded her the Hugh Stott Taylor prize worth $3,000. ... Link 
03.11.2011: ERC Advanced Grants für zwei Spitzenforscher der JGU
Claudia Felser und Matthias Neubert erhalten insgesamt €4,5 Mio. von der EU   ... Link 
03.11.2011: EU-Förderung von €2,4 Mio. für Claudia Felser
Mainzer Chemikerin erhält ERC Advanced Grant für den Ausbau der Materialforschung auf Basis von Heusler-Verbindungen ... Link 
25.10.2011: Open Positions
13.09.2011: Blick in die Tiefe: Unterschiedliche elektronische Zustände in Halbleitern, Metallen und Ferromagneten beobachtet
Wissenschaftler der JGU Mainz nutzen neuartige Lichtquelle zum Blick ins Innere von Heusler-Materialien ... Link 
08.09.2011: Humboldt-Preisträger Arunava Gupta zu Gast an der Johannes Gutenberg-Universität Mainz
Arbeitskreis von Univ.-Prof. Dr. Claudia Felser freut sich auf den Austausch mit Humboldt-Forschungspreisträger Prof. Arunava Gupta von der University of Alabama, USA ... Link 
01.09.2011: Durchfluss für Spin-Strom
Stanislav Chadov berechnet ideale Materialkombinationen für einen möglichst verlustfreien Spin-Stromfluss ... Link 
13.07.2011: Linear dichroism in hard X-ray photoelectron spectroscopy
We succeeded recently to use hard X-rays with variable photon polarization to excite electrons from the bulk of Heusler compounds. The high bulk sensitivity of the new hard X-ray photoelectron spectroscopy (HAXPES) experiment combined with linearly polarized photons will have a major impact on the study of the electronic structure of bulk materials, thin films, deeply buried materials, and interfaces.    ... Link 
03.05.2011: Future technology spintronics:Mainz intensifies its cooperation with the renowned experimental physicist Stuart Parkin
Stuart Parkin of IBM Research – Almaden in San José has become a fellow of the GFK and will be mentoring Mainz postgraduates ... Link 
14.04.2011: Bob Cava received the Johannes Gutenberg lecturer award and Leslie Schoop has successfully applied for the Ph.D program in Princeton
Bob Cava received the Johannes Gutenberg lecturer award and Leslie Schoop has successfully applied for the Ph.D program in Princeton.

Since several years Bob Cava has a strong collaboration with Mainz, to further strengthen this collaboration he has received now the Johannes Gutenberg lecturer award.
Lesslie Schoop a graduate student of the graduate school of excellence has successfully apply for the Ph.D program in Princeton. She will work in Bob Cava’s group searching for new superconductors jointly with Moment group in Mainz.

 

(Foto by Eric Lichtenstein)
from left to right: Claudia Felser, Bob Cava, Lesslie Schoop)

... Link 
16.03.2011: First review articles on Heusler compounds
Simple Rules for the Understanding of Heusler Compounds

Heusler compounds are a remarkable class of intermetallic materials with 1:1:1 (often called Half- Heusler) or 2:1:1 composition comprising more than 1500 members. Today, more than a century after their discovery by Fritz Heusler, they are still a field of active research. New properties and potential fields of applications emerge constantly; the prediction of topological insulators is the most recent example. Surprisingly, the properties of many Heusler compounds can easily be predicted by the valence electron count. Their extremely flexible electronic structure offers a toolbox which allows the realization of demanded but apparently contradictory functionalities within one ternary compound. Devices based on multifunctional properties, i.e. the combination of two or more functions such as superconductivity and topological edge states will revolutionize technological applications. The subgroup of more than 250 semiconductors is of high relevance for the development of novel materials for energy technologies. Their band gaps can readily be tuned from zero to ~4 eV by changing the chemical composition. Thus, great interest has been attracted in the fields of thermoelectrics and solar cell research. The wide range of their multifunctional properties is also reflected in extraordinary magneto-optical, magnetoelectronic, and magnetocaloric properties. The most prominent example is the combination of magnetism and exceptional transport properties in spintronic devices. To take advantage of the extremely high potential of Heusler compounds simple rules for the understanding of the structure, the electronic structure and the relation to the properties are reviewed.  

Online version:  Graf T, Felser C, Parkin SS. Simple Rules for the Understanding of Heusler Compounds, Progress in Solid State Chemistry (2011),
doi: 10.1016/j.progsolidstchem.2011.02.001
A short version has appeared in: IEEE Transaction on Magnetics 47, 2011 367

15.10.2010: Alumni von MOMENT erhält Emmy Noether Nachwuchsgruppe
Dresden: Neue Nachwuchsgruppe am IFW Dresden erforscht Materialien für die Spintronik

Die Deutsche Forschungsgemeinschaft (DFG) hat Dr. Sabine Wurmehl in ihr renommiertes Emmy-Noether-Programm zur Förderung des wissenschaftlichen Nachwuchses aufgenommen. Das Projekt ermöglicht es Frau Dr. Wurmehl, für bis zu fünf Jahre eine von der DFG geförderte, unabhängige Forschergruppe mit drei Doktoranden am Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden (IFW) zu führen. Der inhaltliche Schwerpunkt liegt in Materialien für die Spintronik.

... Link 
13.10.2010: Prof. Claudia Felser erhält den Nakamura-Lecture-Preis der University of California, Santa Barbara
Auszeichnung für Arbeiten auf dem Gebiet der Heusler-Verbindungen ... Link 
24.09.2010: Thomson Reuters ScienceWatch
Our paper “Electronic and magnetic phase diagram of beta ß-Fe1.01Se with superconductivity at 36.7 K under pressure”
DOI 10.1038/nmat2491 (Nat. Mater. 8[8]: 630-3, August 2009) has been identified by Thomson Reuters ScienceWatch as a featured New Hot Paper in the field of Materials Science, which means it is one of the most-cited papers in this discipline published during the past two years.... Link 
29.07.2010: Carl Zeiss Foundation promotes inverse design of new materials at Mainz University
JGU research group at the cutting edge between soft and hard matter and between theory and practice receives € 1 million ... Link 
20.07.2010: Heusler Materials: Goldmine for Future Technologies
New quantum state of matter discovered in Heusler compounds - Researchers from Mainz and Stanford pave the way for spintronics, quantum computing and completely new physical effects... Link 
19.07.2010: Breakthrough in Thin-Film Solar Cells: New Insights into the Indium/Gallium Puzzle
Research cooperation predicts significant improvement to the efficiency of CIGS thin-film solar cells ... Link 
18.05.2010: Materialien für die Zukunft
DFG präsentiert Graduiertenschule Materials Science in Mainz auf ihrem Video-Portal zur Exzellenzinitiative ... Link 
Journal of Physics D: Applied Physics - 2009 Highlights
Exchange energies, Curie temperatures and magnons in Heusler compounds
Jan Thoene, Stanislav Chadov, Gerhard Fecher, Claudia Felser and Jürgen Kübler
2009 J. Phys. D: Appl. Phys. 42 084013
doi: 10.1088/0022-3727/42/8/084013
04.05.2010: Startschuss für ASPIMATT - Deutsch-japanisches Projekt erforscht neue Materialien zur Datenspeicherung
Wissenschaftler aus Mainz, Kaiserslautern und dem japanischen Sendai arbeiten gemeinsam an neuen Werkstoffen für die Spintronik.

Website ASPIMAT http://www.aspimatt.de

 

... Link 
12.02.2010: SUR Grant of IBM for Prof. Felser, Director of MAINZ
University receives state-of-the-art computer systems to the value of 450,000 USD / Computer simulations expected to improve efficiency of solar cells ... Link 
18.02.2010: Materialwissenschaften rücken näher zusammen
JGU verstärkt Kooperation mit der Université de Bourgogne in Dijon  ... Link 
10.02.2010: MOMENT Group Report 2008-2009
24.11.2009: Claudia Felser erhält Ehrung der IEEE Magnetics Society
Mainzer Chemikerin wird zum "Distinguished Lecturer" ernannt... Link 
14.06.2009: Nature Materials
Electronic and magnetic phase diagram of ß-Fe1.01Se with superconductivity at 36.7 K under pressure

The discovery of new high-temperature superconductors based on FeAs has led to a new 'gold rush' in high-TC superconductivity. All of the new superconductors share the same common structural motif of FeAs layers and reach TC values up to 55 K (ref. 2). Recently, superconductivity has been reported in FeSe (ref. 3), which has the same iron pnictide layer structure, but without separating layers. Here, we report the magnetic and electronic phase diagram of ß-Fe1.01Se as a function of temperature and pressure. The superconducting transition temperature increases from 8.5 to 36.7 K under an applied pressure of 8.9 GPa. It then decreases at higher pressures. A marked change in volume is observed at the same time as TC rises, owing to a collapse of the separation between the Fe2Se2 layers. No static magnetic ordering is observed for the whole p–T phase diagram. We also report that at higher pressures (starting around 7 GPa and completed at 38 GPa), Fe1.01Se transforms to a hexagonal NiAs-type structure and exhibits non-magnetic behaviour.

doi:10.1038/nmat2491

... Link 

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