MAGNET COIL FOR MAGNETIC CZOCHRALSKI SINGLE CRYSTAL GROWTH AND MAGNETIC CZOCHRALSKI SINGLE CRYSTAL GROWTH METHOD

• Main Authors: Liu, Liming, Liu, Saibo, Tang, Hongming, Fu, Linjian
• Format: Patent
• Language: English
• Published: 29.04.2021
• Subjects: AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; CRYSTAL GROWTH; ELECTRICITY; INDUCTANCES; MAGNETS; METALLURGY; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; REFINING BY ZONE-MELTING OF MATERIAL; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE; SINGLE-CRYSTAL-GROWTH; TRANSFORMERS; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL

A magnet coil for magnetic Czochralski single crystal growth includes: a first coil a second coil, and an auxiliary coil arranged between the first coil and the second coil. A distance between the first coil and a first edge of the auxiliary coil close to the first coil is equal to a distance between the second coil and a second edge of the auxiliary coil close to the second coil. The auxiliary coil, the first coil and the second coil have a common. When being energized, a direction of a current in the first coil is opposite to a direction of a current in the second coil, and a magnetic field generated by a current in the auxiliary coil is used for enhancing the a cusp magnetic field between the first coil and the second coil.