Seed-crystal holder for single-crystal pulling devices with magnetic field applied thereto

摘要

The hold member has a small-diameter portion and a large- diameter portion. An inner cylinder and an outer cylinder are disposed around the hold member in a concentric manner. The upper end of the hold member is affixed to a wire and suspended therefrom. A clearance is formed between the small-diameter portion and the inner cylinder. Clearances are created between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the outer cylinder.