Significant results of scientific activity in year 2010

The first paper published by the ATLAS Collaboration using an early LHC data. Properties of ordinary proton-proton interactions were measured at center of mass energy of √s = 900 GeV. The data are important for tuning models of soft, low momentum transfer physics. These events constitute a background to the short-distance scale physics which is the main focus of ATLAS and CMS. Understanding this background is important for full exploration of discovery potential of the LHC.

This review summarizes recent first-principles investigations of the electronic structure and magnetism of dilute magnetic semiconductors (DMSs) use in spintronics. Details of the electronic structure of transition-metal-doped III-V and II-VI semiconductors are described, especially how the electronic structure couples to the magnetic properties of an impurity. In addition, the underlying mechanism of the ferromagnetism in DMSs is investigated from the electronic structure point of view in order to establish a unified picture that explains the chemical trend of the magnetism in DMSs.

This extensive article was written under the guidance of FZU group and it describes the world largest Fluorescence detector system. The group initiated the very idea of writing the paper, contributed with a chapter on the optical setup, organization of various international groups, text editing, correspondence with referees, chapter on detector operation, etc. The article describes the components of the fluorescence detector including its optical system, the design of the camera, the electronics, and the systems for relative and absolute calibrations.

We have investigated by means of neutron diffraction and magnetic measurements the particle size effects on the structure and low-temperature spin arrangement in so-called half doped manganites. The study shows that the Mn³⁺/Mn⁴⁺charge ordering and CE-type antiferromagnetic structure characteristic for bulk are completely suppressed when particle size is decreased down to 20 nm, and a ferromagnetic state is stabilized instead.