SEMICONDUCTORS Organization structure (state 2014)

Head of the Department: J. J. Mareš (63) Secretary: B. Chudíčková Technology group: A. Hospodková (46), E. Hulicius, J. Vyskočil, M. Fulem, P. Morávek, M. Zíková, T. Hubáček J. Pangrác, K. Melichar, Photoluminescence group: K. Kuldová (57), J. Oswald, J. Kubištová, P. Krčil, O. Petříček, J. Šidáková Transport group: P. Hubík (53), J. Krištofik, D. Kindl, P. Bátrna Theory group: V. Špička (57), J. Šesták, P. Středa Students involved in research activities, 2010-2014

J. Vyskočil, B. Šopík, L. Prušáková , Š. Uxa: PhD M. Zíková, T. Hubáček, J. Kubištová, P. Krčil: Bc. and Ing. S. Pařez, Mgr. P. Linhart, T. Pašková, Bc.

University lectures prof. E. Hulicius: “Chapters on Nanoelectronics“, FJFI Prague, TU Liberec Dr. J. Oswald: “Optical Properties of Semiconductors“, FJFI Prague, TU Liberec prof. J. Šesták: “ Scientific World“, NYU of Prague Publications 2010 - 2014

Bibliometric parameters:

169 outputs classified mainly as “recognized internationally“ 27 monograph chapters RESEARCH ACTIVITIES IN THE YEARS 2010-2014 Growth of heterostructures with quantum dots (QD)

AFM

HR TEM

MOVPE apparatus-Aixtron 200 for Self-assembled (Stranski-Krastanow) epitaxial growth of heterostructures InAs based QD‘s embedded in (installed in 1994) GaAs/GaAsSb heterostructure Quantum dots and tuning of optoelectronic devices

A Goal = matching of optoelectronic device with

SiO2-based waveguides

1300 nm & 1550 nm B

Solution = insertion of graded strain reducing GaAsSb layer vicinal to QDs C [J. Cryst. Growth 370 (2013) 303] Physical-chemical properties of MO precursors

Prototype of an apparatus for the measurement of vapor pressures of metal-organic (MO) precursors developed in collaboration with Institute of Chemical Technology, Prague. Modified version of this model is used in NIST (USA) as an étalon apparatus.

[ J. Chem. Eng. Data 59 (2014) 4179 ] Theoretical Achievements

Non-equilibrium Green‘s functions approach to mesoscopic systems [Physica E 42 (2010) 525] Glassy, Amorphous and Non-Crystalline Materials [Springer book 2010] Relativistic invariance of temperature and von Mosengeil-Ott‘s antinomy [Physica E 42 (2010) 484] T-matrix theory of superconductivity [Phys. Rev. B 84 (2011) 094529(13)] Anomalous Hall Effect [Phys Rev. B 88 (2013) 134422(5)] International collaboration

IMEM – Parma (Italy) Ioffe Institute – St. Petersburg (Russia) Aristotle University – Thessaloniki (Greece)

Contr. US MDA- HQ0147-09-C-0005 Kyma Technologies Inc. (NC-USA)

characterization of semiinsulating GaN:Fe (material is not measurable by standard magnetotransport methods)

We have developed original optical and transport techniques Two transport techniques developed

Thompson-Lampard theorem was chosen as a theoretical basis for a method alternative to van der Pauw‘s technique.

General rules for design of Point contact test patterns were derived. Charge injection into a semiinsulator and analysis of I-V curves enable one [Meas. Sci. Technol.23 (2012) 1] to evaluate transport parameters (conductivity, mobility, trap concentration)

[J. Appl. Phys. 110 (2011) 013723(6)] OTHER ACTIVITIES Frontiers of Quantum and Mesoscopic Thermodynamics Prague, July 27 - August 1, 2015, http://fqmt.fzu.cz/15

Under the auspices of Miloš Zeman, President of the Czech Republic Milan Štěch, President of the Senate of the Parliament of the Czech Republic Jiří Drahoš, President of the Academy of Sciences of the Czech Republic Dominik Duka, Archbishop of Prague Frontiers of Quantum and Mesoscopic Thermodynamics Prague, 27 July - 1 August 2015 Supported by Committee on Education, Science, Culture, Human Rights and Petitions of the Senate of the Parliament of the Czech Republic Institute of Physics, the Academy of Sciences of the Czech Republic Institute for Theoretical Physics, University of Amsterdam, Netherlands Department of Physics, Texas A&M University, USA College of Engineering and Science, University of Detroit Mercy, USA Institut de Physique Théorique, CEA/CNRS Saclay, France

Topics

• Foundations of quantum physics • Topological states of quantum matter and • Quantum measurement, entanglement quantum phase transitions and coherence • Physics of quantum computing and • Quantum optics information • Quantum many body physics • Mesoscopic, nano-electromechanical and • Non-equilibrium statistical physics nano-optical systems • Quantum thermodynamics • Biological systems, molecular motors and • Dissipation, dephasing, noise and quantum biology decoherence • Cosmology, gravitation and astrophysics • Macroscopic quantum behavior Frontiers of Quantum and Mesoscopic Thermodynamics Prague, 27 July - 1 August 2015

Organizing committee

Conference chair: • Ján Krajník (Tacca Agency, Prague) • Václav Špička (Institute of Physics CAS, • Josef Kšica (Prague) Prague) • Karla Kuldová (Institute of Physics CAS, Members: Prague) • Jiří Bok (Charles University, Prague) • Vladimír Kunický (Prague) • Howard Brubaker (Detroit) • Jiří J. Mareš (Institute of Physics CAS, • Pavla Bušová (Prague) Prague) • Barbora Chudíčková (Institute of Physics • Theo M. Nieuwenhuizen (University of CAS, Prague) Amsterdam) • Soňa Fialová (Prague) • Claudia Pombo (Amsterdam) • Etienne Hofstetter (London) • Jaroslav Šesták (Institute of Physics CAS, • Pavel Hubík (Institute of Physics CAS, Prague/Pilsen) Prague) • Jarmila Šidáková (Institute of Physics CAS, • Peter D. Keefe (University of Detroit Mercy) Prague) • Souheil Khaddaj (Kingston University, • Marie Svobodová (Tacca Agency, Prague) London) • Yuval Waldman (Music Bridge International, • Zdeněk Kožíšek (Institute of Physics CAS, New York) Prague) Frontiers of Quantum and Mesoscopic Thermodynamics Prague, 27 July - 1 August 2015 Scientific committee

Chair: • Dudley Herschbach (Harvard University) • Václav Špička (Institute of Physics, Acad. Sci. • Hagen Kleinert (Freie Universität Berlin) CR, Prague) • Peter Knight (Kavli Royal Society International Centre, Imperial College, London) Co-chair: • Pavel Kroupa (University of Bonn) • Theo M. Nieuwenhuizen (University of • Anthony J. Leggett (University of Illinois at Amsterdam) Urbana - Champaign) The most notable members: • Giorgio Parisi (Università di Roma I. La • Alain Aspect (Institut d’Optique, Palaiseau) sapienza) • Roger Balian (IPhT, Saclay) • Jean Michel Raimond (École Normale • Amir Ordacgi Caldeira (Universidade Estadual Supérieure, Paris) de Campinas) • Marlan Scully (Texas A&M University and • Jean Dalibard (École Normale Supérieure, Princeton University) Paris) • Gerard ’t Hooft (Spinoza Institute, Utrecht • Claude Cohen-Tannoudji (École Normale University) Supérieure, Paris) • Frank Wilczek (MIT Center for Theoretical • Serge Haroche (École Normale Supérieure, Physics) Paris) • Anton Zeilinger (University of Vienna) FUTURE PLANS Project LABONIT (2014 -2019)

Newly installed MOVPE Aixtron CS 3x2‘‘ for preparation of GaN heterostructures and Raman spectrometer Horiba LabRAM HR Scientific program of LABONIT

Basic research into the GaN-based structures, growth, optical and transport properties, theory.

Scintillators of a new generation HEMT structures

Continuation of cooperation with companies: CRYTUR spol. s r.o., Turnov OnSemiconductor ČR, s.r.o., Rožnov p. Radhoštěm Aixtron Ghmb. Aachen (Germany) First result, multiple InGaN/GaN QW for scintillators

An example of a structure designed and prepared in cooperation with Aixtron Comp. fast scintillator

[Nanotechnology 25 (2014) 455501(6)] Summary

• Valuable work in the field of technology, experiment and theory was done

• New facilities (e.g. project LABONIT) were built, attractive enough for students and young scientist from CR and abroad, giving chance to sustain in next years our research on good international level

• What should be improved ? We have to change the publishing strategy in order to improve our overall IF and deepen the contacts with Czech and foreign universities THANK YOU FOR YOUR ATTENTION