Excited states mapped by secondary photoemission.

We report on angle-resolved photoemission (ARPES) experiments on Cu(110) using Mg K(alpha) radiation. The secondary emission (SE) fine structure of electrons below 50 eV is found to map the empty band structure relevant for absolute band mapping in ARPES. The finding is based on a direct comparison of our experiments with very low-energy electron diffraction data [Phys. Rev. Lett. 81, 4943 (1998)]] recently shown to map the unoccupied states representing the photoemission final-state. This suggests a new theoretical approach to the SE process treating the outgoing electron state as the time-reversed diffraction state.

Electronic structure of the YH3 phase from angle-resolved photoemission spectroscopy.

Yttrium can be loaded with hydrogen up to high concentrations causing dramatic structural and electronic changes of the host lattice. We report on angle-resolved photoemission experiments of the Y trihydride phase. Most importantly, we find the absence of metal d bands at the Fermi level and a set of flat, H-induced bands located at much higher binding energy than predicted, indicating an increased electron affinity at H sites.

Formation of a stable decagonal quasicrystalline Al-Pd-Mn surface layer.

We report the in situ formation of an ordered equilibrium decagonal Al-Pd-Mn quasicrystal overlayer on the fivefold symmetric surface of an icosahedral Al-Pd-Mn monograin. The decagonal structure of the epilayer is evidenced by x-ray photoelectron diffraction, low-energy electron diffraction, and electron backscatter diffraction. This overlayer is also characterized by a reduced density of states near the Fermi edge as expected for quasicrystals. This is the first time that a millimeter-size surface of the stable decagonal Al-Pd-Mn is obtained, studied, and compared to its icosahedral counterpart.

[Hospitals and some outstanding physicians of Pancevo]. / Osvrt na bolnice i pojedine znamenite lekare Panceva.

This paper is a retrospection of hospitals and some outstanding physicians who lived in Pancevo, written in the honor of 50th anniversary of "Medical Review". Hospital bed capacity and the process of building hospitals have been: described briefly. Fire and wars have destroyed a lot of written evidence important for Pancevo health services. Nevertheless, the preserved sources let us read about facts that have already or will soon become part of the history of medicine. Apart from this, the paper also contains important details from the life and work of Konstantin Peicic (1802-1882), a famous physician, writer of the first Serbian original medical book "De pauperum aegrorum" (About Treating the Sick and Poor) and many other medical and fine literature works. He had worked in Pancevo for more than 30 years, but after he had retired, he moved to Budapest to become the manager of the Tekelianum in 1874. He spoke Latin, Hungarian, French, Italian, German and of course Serbian language. The paper also gives data on some other physicians: Ljubomir Nenadovic a dentist and a writer, Jovan Jovanovic-Zmaj, a physician and a great Serbian poet and a founder of the journal "Ziza" and assistant of the journal "Pancevac" founded in 1869, and so on. The above mentioned physicians had lived and worked in Pancevo since the first medical institution "Kontumac" was built in 1726, but then others were built too: the first civil hospital in 1803 and the first army hospital in 1830. Modern departments were built in 1965, whereas the Children's Department for Internal Diseases and the Department for Internal Diseases were built in 1974. This retrospection tried to present the history of Pancevo as well as great people from our past who worked there to our readers. They were great physicians, educators and gifted writers.