MAGNETIC PROPERTIES OF SOME RARE EARTH IONS IN GARNETS. Technical Note 9
Susceptibility measurements in the range 20 to 1.5%DEK are reported for the eight paramagnetic garnets with the composition R/sub 3/X/sub 5/O/sub 12/, where R = Gd/sup 3+/, Tb/sup 3+/, Ho/sup 3+/, or Tm/sup 3+/ and X = Al/sup 3+/ or minations of the principal g-values of the ions Nd/sup 3+/, Dy/sup 3+/, Er/sup 3+/ , and Yb/sup 3+/ Lu/sub 3/Ga/sub 5/O/sub 12/. The results are interpreted qualitatively as indicating highly anisotropic and relatively large local crystalline electric fields, and the effect of these on the properties of ferrimagnetic rare earth iron garnets is considered, It is shown that in the ferrimagnetic garnets the rare earth ions will almost always divide into 6 non- collinear sublattices, whose magnetic moments make quite large angles with the two antiparallel iron sublattices. For one case, YbIG, it was possible to make a numerical estimate of the angles of canting. (auth)
- Research Organization:
- Oxford Univ. Clarendon Lab.
- NSA Number:
- NSA-16-015261
- OSTI ID:
- 4796453
- Report Number(s):
- AFCRL-987
- Country of Publication:
- United States
- Language:
- English
Similar Records
MAGNETIC PROPERTIES OF RARE EARTH IONS IN GARNETS
Canting of the Magnetic Moments on the Octahedral Site of an Iron Oxide Garnet in Response to Diamagnetic Cation Substitution
Related Subjects
ALUMINUM SILICATES
ANGULAR DISTRIBUTION
CRYSTALS
DYSPROSIUM
ELECTRIC FIELDS
ERBIUM
FERROMAGNETIC MATERIALS
FERROMAGNETISM
GADOLINIUM COMPOUNDS
GALLIUM COMPOUNDS
GARNETS
HOLMIUM COMPOUNDS
IONS
LATTICES
LOW TEMPERATURE
LUTETIUM COMPOUNDS
MAGNETIC MATERIALS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETISM
MEASURED VALUES
MICROWAVES
MINERALS
NEODYMIUM
NUMERICALS
OXIDES
PARAMAGNETISM
PHYSICS
RARE EARTHS
RESONANCE
SPECTRA
SPECTROSCOPY
SUSCEPTIBILITY
TEMPERATURE
TERBIUM COMPOUNDS
THULIUM COMPOUNDS
YTTERBIUM