Hamburg 2001 – wissenschaftliches Programm

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TT: Tiefe Temperaturen

TT 6: Postersitzung I: Josephsonkontakte und SQUIDs, Supraleitung: Theorie, Korrelierte Elektronen, Niederdimensionale Systeme, Magnetotransport, Quantenhalleffekt, Kohlenstoff-Nanoröhrchen, Quantenflüssigkeiten

TT 6.14: Poster

Montag, 26. März 2001, 14:30–17:00, Rang S\ 3

Half-Metallic Antiferromagnets — •Krunoslav Pozgajcic and Caudius Gros — Universitaet des Saarlandes, Fachbereich Physik, Postfach 15 11 50, Gebaeude 38, D-66041 Saarbruecken

Half-metallic materials are coumpounds showing metallic properties only in one spin channel. An example of a materials with this properties is ferromagnetic CrO2. For the case of antiferromagnetics of this type one still doesn’t have an experimental proof of their existence. Since they can show some appealing properties, it would be interesting to give a hint on where to look for them. On this poster one will discuss a model candidate for the above case using mean-field and dynamical mean-field methods.