GROWTH OF MAGNETIC GARNET CRYSTALS

Journal Article · Sat Mar 01 04:00:00 EST 1958 · Journal of Applied Physics (U.S.)

DOI:https://doi.org/10.1063/1.1723148· OSTI ID:4334131

Nielsen, J W

Single crystals of magnetic garnets have been grown from solutions of molten lead oxide, iron oxide, and the oxides of yttrium, samarium, erbium, or gadolinium. The crystals are grown by slowly cooling melts from 1325 deg C to near 900 deg C. A convenient composition is 52.5 mole% PbO, 44 mole% Fe/sub 2/O/ sub 3/, and 3.5 mole% M/sub 2/O/sub 3/ where M is Y, Gd, Er, or Sm. Crystals of yttrium--iron garnet have been grown which contain gallium partialiy substituted for iron. The method may also be extended to the growth of nonmagnetic yttrium gallium garnets by using a melt which is 72.7 mole% PbO, 26 mole% Ga/sub 2/O/sub 3/ and 1.3 mole% Y/sub 2/O/sub 3/. Bismuth oxide can be used as a solvent for the growth of magnetic garnet crystals but the substitution of bismuth in the garnet lattice makes it less desirable than lead oxide. (auth)

• Research Organization: Bell Telephone Labs., Inc., Murray Hill, N.J.
• Sponsoring Organization: USDOE
• NSA Number: NSA-12-007900
• OSTI ID: 4334131
• Journal Information: Journal of Applied Physics (U.S.), Journal Name: Journal of Applied Physics (U.S.) Vol. Vol: 29; ISSN JAPIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BISMUTH OXIDES
CRYSTALS
ERBIUM OXIDES
GADOLINIUM OXIDES
IMPURITIES
IRON OXIDES
LATTICES
LEAD OXIDES
MAGNETISM
MELTING
MONOCRYSTALS
PHYSICS
SAMARIUM OXIDES
SOLUTIONS
TEMPERATURE
YTTRIUM OXIDES