21 citations · 43 across the 5 of their papers we have counts for
5 papers
Evaluation and thermodynamic optimization of phase diagram of lithium niobate tantalate solid solutions
Umar Bashir, Detlef Klimm, Michael Rusing +2
The phase diagram of the lithium niobate and lithium tantalate solid solutions was investigated using experimental data from differential thermal analysis (DTA) and crystal growth.…
Fingerprints of carbon defects in vibrational spectra of gallium nitride (GaN) consider-ing the isotope effect
I. Gamov, J. L. Lyons, G. Gärtner +5
This work examines the carbon defects associated with recently reported and novel peaks of infrared (IR) absorption and Raman scattering appearing in GaN crystals at carbon ($^{12}…
Photochromism and influence of point defect charge states on optical absorption in aluminum nitride (AlN)
Ivan Gamov, Carsten Hartmann, Thomas Straubinger +1
In this work, we study the absorption properties of AlN in the range of 1.5 - 5.5 eV, as well as the meta-stable change in absorption induced by ultraviolet (UV) irradiation (photo…
Phase diagram studies for the growth of (Mg,Zr):SrGaO crystals
Detlef Klimm, Bartosz Szczefanowicz, Nora Wolff +1
By differential thermal analysis a concentration field suitable for the growth of Zr, Mg codoped strontium hexagallate crystals was observed that corresponds well with experimental…
Crystal growth and characterization of the pyrochlore TbTiO
D. Klimm, C. Guguschev, D. J. Kok +9
Terbium titanate (TbTiO) is a spin-ice material with remarkable magneto-optical properties. It has a high Verdet constant and is a promising substrate crystal for the e…