DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2011 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

TT: Fachverband Tiefe Temperaturen

TT 44: Poster Session Correlated Electrons

TT 44.35: Poster

Donnerstag, 17. März 2011, 10:00–13:00, P1

Evidence for local lattice distortions in giant magnetocapacitive CdCr2S4Vladimir Gnezdilov1,2, •Peter Lemmens2, Yurii Pashkevich3, Alois Loidl4, and Vladimir Tsurkan4,51ILTPE NAS, Ukraine — 2IPKM, TU-BS, Braunschweig, Germany — 3DonFTI NAS, Ukraine — 4EP V, Univ. Augsburg, Germany — 5IAP AS, Moldova

Pronounced anomalies in intensity, frequency, and width of optical phonon modes were observed in the CdCr2S4 spinel. To explain the colossal magnetocapacitive effects in CdCr2S4 we developed a scenario based on hybridization effects to be in accordance with the observed enhanced polarizabilities of certain Cr-S displacements and evidence for symmetry reduction.

Work supported by DFG.

100% | Mobil-Ansicht | English Version | Kontakt/Impressum/Datenschutz
DPG-Physik > DPG-Verhandlungen > 2011 > Dresden