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Electron-phonon coupling in doped graphene
The electron-phonon coupling in highly doped graphene that is, for instance, a part of intercalated graphite compounds (KC8, CaC6), has been widely studied. The results have been, however, rather confusing up to now. The determined coupling strengths λ are drastically different, claimed to be in the interval from the negligible value 0.04 to the very high one, 4.
A contribution to the ongoing debate has now been published by our colleagues I. Pletikosić, M. Kralj, M. Milun and P. Pervan in Physical Review B.
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Charge Kondo anomaly in the semiconductor PbTe
Our colleague Veljko Zlatić, Emeritus Scientist of Institute of Physics, has recently published, in collaboration with T.A.Costi, Forschunsgzentrum Jűlich, article in Physical Review Letters establishing an unusual dependence of the properties of the semiconductor PbTe on Tl-doping in Kondo anomaly. One does not deal however with classical scenario of Kondo scattering on magnetic impurity but with a Kondo-like effect involving charge degrees of freedom only!
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Electrostatic energy of viruses
As announced by Jožef Štefan Institute our colleague Antonio Šiber and his collaborators from Jožef Štefan Institute, A. Lošdorfer Božič and R. Podgornik, published a review article on physical modeling of viruses in Physical Chemistry Chemical Physics. The article is singled out as 'Cover Article' and illustrated on journal’s front page by authors' model of a virus.
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Hot electrons in graphene
Graphene on metal surfaces is a materials system of enormous fundamental and applied interest. Although dynamics of electrons in the proximity of the Dirac point below the Fermi energy is well studied, there is a lack of knowledge about unoccupied electronic states below the vacuum level, i.e. about the "hot" electrons. Recent paper, accepted in Phys. Rev. B (Rapid Communications) and coauthored by M. Kralj and M. Petrović, reports the first study of those states in graphene through measurements of image potential states in the time- and angle- resolved two photon photoemission.
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B. Gumhalter, one of the two lecturers from Europe at David C. Langreth Memorial Symposium
Recently deceased David C. Langreth was one of the most prominent American many-body theorists. Memorial Symposium Building on the Legacies of David Langreth, organized by Professor D. Vanderbildt, has been held at Rutgers University (NJ,USA), with the participation of B. Gumhalter (Institute of Physics, Zagreb) as one of the two invited lecturers from Europe.
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Femtosecond time-resolved spectroscopy employed for determining the charge density wave state in films with nano-grains
Thin films of potassium blue bronzes, developed for the first time, have been studied by various experimental techniques, among which femtosecond time-resolved laser spectroscopy has proven to be the most useful for identifying the presence of charge density wave state in films with nano-grains. This technique is new and its capabilities are still subject of research. This paper was published in the Journal of Applied Physics 110, 014 907 (2011).
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Self-assembly of molecular layers adsorbed at surfaces
The article published in J. Phys. Chem. C is a result of collaboration with chemists from PMF and IRB. Our contribution in this interdisciplinary effort was the application of a scanning tunneling microscopy technique to resolve structures of the adsorbed self-assembled layers of organic molecules on an Au(111) surface. The main focus of this work was to realize the adsorption of self-assembled bilayers, which opens various possible applications of such functionalized 2D crystallized structures, e.g. as molecular switches.
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Dynamical hysteresis – an insight into the domain wall dynamics
Magnetic hysteresis, historically the most intensively investigated nonequilibrium phenomenon, is only recently getting better understood in all necessary details and aspects. Investigation published recently in Physical Review B on a new magnetic system Co7(TeO3)4Br6, which enables, on basis of unique combination of its intrinsic parameters, opens a thorough insight into dynamical hysteresis and related domain wall dynamics within a broad frequency window of the applied magnetic field.
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Graphene – from nanometer to millimeter
In the Laboratory for surface science and supported nanostructures a 2D material graphene, which has great potential for a range of technological applications, has been investigated for a last couple of years. In the August issue of the Physical Review B journal, a newest paper has been published about the influence of preparation recipes for epitaxial graphene to the quality of its electronic properties, i.e. electronic bands.
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Veljko Zlatić has become the first scientist emeritus of the Institute of Physics
On its session on March the 29th 2011, the Scientific Council of the Institute of Physics has elected Veljko Zlatić, PhD to the status of «scientist emeritus», acknowledging his important contribution to the development of science at the Institute. The Institute has thus obtained its first emeritus.
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3.4.2012..
Meetings of scientific and steering committees of European Physical Journal
15th Meeting of the Scientific Advisory Committee - SAC of the European Physical Journal - EPJ, will be held on April 20, 2012, at the Institute of Physics, Zagreb, Croatia. 32nd Meeting of the Steering Committee - StC of the European Physical Journal - EPJ will take place at the Institute of Physics, Zagreb, Croatia, from 20 to 21 April 2012.
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31.5.2011..
Novel materials for electronics: from production to devices
On Monday, 6th of June a workshop is organized at Institute of Physics in Mladen Paić lecture hall which is related to the UKF project Photolitographic synthesis and electronic properties of graphene based devices and related structures . Title of the workshop is Novel materials for electronics: from production to devices.
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2.3.2011..
Open Day of the Institute of Physics, March the 25th, 2011
We are pleased to announce the jubilee tenth Open Day of the Institute of Physics, taking place on March the 25th, 2011. We are inviting you to enjoy an exciting visit to the Institute.
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