Journal Article

FZJ-2016-06935

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Ultra-high vacuum compatible induction-heated rod casting furnace

Bauer, A. (Corresponding author) ; Neubauer, A. ; Münzer, W. ; Regnat, A. ; Benka, G. ; Meven, M.FZJ* ; Pedersen, B. ; Pfleiderer, C.

2016
American Institute of Physics [S.l.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/13132  doi:10.1063/1.4954926

Abstract: We report the design of a radio-frequency induction-heated rod casting furnace that permits the preparation of polycrystalline ingots of intermetallic compounds under ultra-high vacuum compatible conditions. The central part of the system is a bespoke water-cooled Hukin crucible supporting a casting mold. Depending on the choice of the mold, typical rods have a diameter between 6 mm and 10 mm and a length up to 90 mm, suitable for single-crystal growth by means of float-zoning. The setup is all-metal sealed and may be baked out. We find that the resulting ultra-high vacuum represents an important precondition for processing compounds with high vapor pressures under a high-purity argon atmosphere up to 3 bars. Using the rod casting furnace, we succeeded to prepare large high-quality single crystals of two half-Heusler compounds, namely, the itinerant antiferromagnet CuMnSb and the half-metallic ferromagnet NiMnSb.

Keyword(s): Instrument and Method Development (1st) ; Condensed Matter Physics (2nd) ; Crystallography (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Streumethoden (JCNS-2)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)
2. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)

Experiment(s):

1. HEiDi: Single crystal diffractometer on hot source (SR9b)
2. RESI: Thermal neutron single crystal diffractometer (SR8b)

Appears in the scientific report 2016

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Database coverage:
; ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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