Regensburg 2007 – scientific programme
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MA: Fachverband Magnetismus
MA 15: Poster:ThinFilms(1-33),Transp.(34-49),ExchBias(50-56),
Spindynamics(57-70),Micro-nanostr.Mat.(71-82),
Particles/Clust.(83-88), Mag.Imag./Surface(89-96),
Spinelectronics(97-109), Theory/Micromag.(110-116),
Spinstruct/Phasetr.(117-128),Magn.Mat.(129-139),
Aniso.+Measuring(140-145), MolMag.(146-152),
MSMA(153-156)
MA 15.137: Poster
Tuesday, March 27, 2007, 15:00–19:00, Poster A
Dielectric and thermodynamic properties of — •Norman Leps1, Janet Leschner1, Andrei Sotnikov1, Dmitri Souptel1, Sang-Wook Cheong2, Rüdiger Klingeler1, Christian Hess1, Natalia Tristan1, and Bernd Büchner1 — 1Leibniz-Institute for Solid State and Materials — 2Department of Physics & Astronomy Rutgers
In so-called multiferroics the magnetic and the ferroelectric order parameter might be controlled by the application of the respective complementary field provided that significant magneto-electric coupling exists. Recently, the materials RMn2O5 and RMnO3 (R: small rare earth) have attached attention in this regard. Here we present experimental results for thermodynamic and dielectric properties of several compounds of this family with Eu, Bi and Y on the R sites. We compare our results with data for other multiferroic systems and discuss possibilities for specificly altering the materials properties by doping.