Laboratory of Oxide Materials

Karel Knížek

Born 17. 8. 1966 in Klatovy.
Graduated: 1984 - 1989: Inorganic chemistry at the Faculty of Natural Sciences, Charles University, Prague.
PhD: 1991 - 1995: Inorganic chemistry at the University of Chemical Technology, Prague.

1995 - 1996: One year at the Laboratoire CRISMAT, ISMRA et Université; de Caen, France.
1999: Six months at the Stockholm University, Arrhenius Laboratory, Sweden.
2000: Six months at the Stockholm University, Arrhenius Laboratory.
2005: One month at the University of Oslo, Department of Chemistry, Norway.

Spin transitions and related structure anomalies in Co-perovskites LnCoO₃ (Ln = La, Y, rare-earth). Determination of the character of the excited spin state of Co³⁺ ion and interpretation of the magnetic and metal-insulator transitions based on the LS-LS/HS-IS model with the help of electronic structure calculation and measurements of thermal dilatation and magnetic susceptibility.
Stucture properties of Y-type hexaferrites (BaSr)₂Zn₂Fe₁₂O₂₂ and their relation to ferroelectric properties and conductivity.
Determination of the grain size of the magnetic nanoparticles with the help of X-ray diffraction.
Magnetic, charge and orbital ordering in Mn-perovskites.
X-ray diffraction over the temperature range 90 - 1200 K.
Electronic structure calculation using the Wien2k program package
Software for transport properties measurement.

	Laboratory of Oxide Materials
	[ Institute of Physics ] [ Academy of Sciences ] [ Solid State Physics ] [ Dep. of Magnetics and Superconductors ]

Last change: 1. 3. 2010 (K. Knizek)