Zoznam publikácii

1. P. Bury, I. Jamnický, V. W. Rampton: Acoustic spectroscopy of deep centers in GaAs/AlGaAs heterostructures. Physica B 263 - 264 (1999), 94 - 97.
   Abstract. Two Versions of the acoustic deep-level spectroscopy (A-DLTS) technique based on the acoustoelectric effect resulting from the interaction between an acoustic wave and heterostructures interfaces have been used to study deep centres in GaAs/AlGaAs heterostructures. The latter uses an acoustoelectric response signal (ARS) produced by the heterostructure interface when a longitudinal acoustic wave propagates through the heterostructure. Planar GaAs/AlGaAs heterostructure capacitors with electrodes in a field effect transistor configuration were investigated by these versions of the A-DLTS technique. Several deep centres were found and their activation energies and corresponding cross-sections determinated.
2. P. Bury, M. Jamnický, P. Hockicko, I. Jamnický: Transport Mechanismus Study of Glassy Electrolytes Using Acoustic Attenuation and Conductivity Spectroscopy, Glastech. Ber. Glass Sci. Technol. Vol. 77 C (2004) 354 - 358. ISSN 0946-7475
   Abstract. A particular attention is paid to the experimental study of transport mechanisms in glassy materials with the fast ion transport that play an important role in a number of modern electrochemical devices. The investigation of conductivity spectra of ionic glasses is the basic tool for transport mechanisms study. However, the acoustic attenuation measurement is another very useful technique for non-destructive investigation of transport mechanisms in conductive glasses that can have even some advantages comparing to electrical ones. In the contribution we present both acoustic and conductivity spectra of new phosphate glasses containing Cu⁺ conductive ions in the system CuI-CuBr-Cu₂O-P₂O₅ with respect to investigate ion transport mechanisms and to determine the relation between acoustical and electrical properties considering the various glass compositions.