Effect of impurities and external fields on second harmonic generation in the case of laser irradiation of YBa2Cu3O(7-delta) ceramic

Effect of impurities and external fields on second harmonic generation in the case of laser irradiation of YBa2Cu3O(7-delta) ceramic

Using a single-mode picosecond YAG-Nd3(+) laser (P = 30 MW, lambda = 1.06 micron), the reflected second harmonic generation (SHG) of cerium-doped YBa2Cu3O(7-delta) ceramics was measured at low temperatures. An increase in the second harmonic signal was discovered near Tc. The concentration changes o...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Fizika nizkih temperatur (Kiev) 1998-03, Vol.24 (3), p.278-280
Hauptverfasser: Dovgij, Ya O, Kityk, I V, Lutsiv, R V, Malinich, S Z
Format: Artikel
Sprache:rus
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Using a single-mode picosecond YAG-Nd3(+) laser (P = 30 MW, lambda = 1.06 micron), the reflected second harmonic generation (SHG) of cerium-doped YBa2Cu3O(7-delta) ceramics was measured at low temperatures. An increase in the second harmonic signal was discovered near Tc. The concentration changes of this effect are connected with splitting near Van Hove singularities. The dependence of the SHG signal on the magnitude and direction of the external magnetic field was observed. (Author)
ISSN:0132-6414