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TT: Fachverband Tiefe Temperaturen

TT 40: Poster Session Correlated Electrons

TT 40.12: Poster

Mittwoch, 13. März 2013, 15:00–19:00, Poster D

Preparation chain of single crystal intermetallic compounds under UHV-compatible conditions — Andreas Bauer, •Georg Benka, Marein Rahn, Frederik Goerg, Christian Franz, and Christian Pfleiderer — Physik Department E21, Technische Universität München, D-85747 Garching, Germany

High quality single crystals are perhaps the most important technical requirement for major advances in condensed matter physics. To achieve the highest purity it is crucial to avoid contaminations at any of the preparational steps of the crystal growth process. We report the development of an Ar glove-box with a load-lock system that allows to go from the cutting of the starting elements to the initial synthesis of polycrystals with RF heating or arc-melting in a pure Ar environment. This forms the starting point for single-crystal growth by means of rod casting and optical float-zoning under UHV compatible conditions [1]. The improvements in sample preparation achieved with our glove-box are illustrated in terms of exploratory studies of selected rare-earth compounds.
[1] A. Neubauer et al., RSI 82, 013902 (2011)