Infrared furnace with a superconducting magnet for floating zone growth of oxide single crystals
Creators
- 1. Department of Superconductivity, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656 (Japan)
- 2. Center for Crystal Science and Technology, University of Yamanashi, 7 Miyamae, Kofu, Yamanashi 400-8511 (Japan)
Description
A new type of infrared-heated floating-zone (FZ) crystal apparatus was designed and fitted with a magnetic field generator utilizing a liquid-helium-free superconducting magnet to grow crystals under a high magnetic field. An ellipsoidal mirror and two different parabolic mirrors were combined to guide the heating light from a 5 kW xenon lamp to the growth stage placed inside a superconducting magnet. The distance between the heating lamp and the center of the magnet was set to 1.6 m to suppress the instability of the lamp caused by the leakage of the magnetic field. The approximate range of melting points achieved is from 900 to 1800 deg. C, as determined through the melting of various oxides. The effect of the magnetic field on crystal growth was experimentally investigated by growing Ca12Al14O33 crystals under several different magnetic conditions and focusing on the behavior of oxygen bubbles in the melt
Additional details
Identifiers
- DOI
- 10.1063/1.1867072;
Publishing Information
- Journal Title
- Review of Scientific Instruments
- Journal Volume
- 76
- Journal Issue
- 3
- Journal Page Range
- p. 035104-035104.4
- ISSN
- 0034-6748
- CODEN
- RSINAK
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36085146
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALUMINIUM OXIDES; CALCIUM COMPOUNDS; CRYSTAL GROWTH; HEATING; HELIUM; INSTABILITY; LIGHT BULBS; MAGNETIC FIELDS; MELTING POINTS; MONOCRYSTALS; SUPERCONDUCTING MAGNETS; XENON; ZONE MELTING
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL GROWTH METHODS; CRYSTALS; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; ELEMENTS; EQUIPMENT; FLUIDS; GASES; MAGNETS; MELTING; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; RARE GASES; SUPERCONDUCTING DEVICES; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE
Optional Information
- Notes
- (c) 2005 American Institute of Physics