PARAMAGNETIC-RESONANCE SPECTRUM OF GADOLINIUM IN SINGLE CRYSTALS OF THORIUM OXIDE
Journal Article
·
· Phys. and Chem. Solids
The paramagnetic-resonance spectrum of single crystals of ThO/sub 2/ containing less than 0.01 mole % of Gd/sup 3+/ has been analyzed at 290 and 90 deg K at 3 cm wavelength. The positions and intensities of the lines are explained by a crystalline field of cubic symmetry. The ground state is split with an over-all separation 8c--2d = 0.1755 plus or minus 0.0003 cm/sup -1/, c =219.9 plus or minus 0.3 x 10/sup -4/ cm/sup -1/, d = 1.0 plus or minus 0.3 x 10/sup -4/ cm/sup -1/, g = 1.9913 plus or minus 0.0005 at 290 deg K and 8c--2d = 0.1796 plus or minus 0.0008 cm/sup -1/, c = 225.0 plus or minus 0.8 x 10/sup -4/ cm/sup -1/, d= 1.7 plus or minus 0.8 x 10/sup -4/ cm/sup -1/, g= 1.991 P 0.001 at T = 90 deg K. Transitions corresponding to DELTA M = plus or minus 3, DELTA M = plus or minus 4, DELTA M = plus or minus 5 were observed. The narrow line width of less than 1 G permits the detection of the hyperfine structure of the two isotopes 155 and 157. The ratio of the magnetic moments is mu /sub 1//sup 155// mu /sub 1/sup 157/= 0.744 plus or minus 0.007 and the spectra are consistent with nuchear spins of 3/2 for both isotopes. It is suggested that there are oxygen vacancies distributed at random throughout the crystal. (auth)
- Research Organization:
- Hebrew Univ., Jerusalem; Israel Inst. of Tech., Haifa, Israel
- NSA Number:
- NSA-13-000831
- OSTI ID:
- 4331297
- Journal Information:
- Phys. and Chem. Solids, Journal Name: Phys. and Chem. Solids Vol. Vol: 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
ELECTRON SPIN RESONANCE OF Gd$sup 3+$ AND Eu$sup 2+$ IN SINGLE CRYSTALS OF CaO
RATIOS OF RELATIVE ABUNDANCE, MAGNETIC MOMENTS, AND CAPTURE CROSS SECTIONS OF GADOLINIUM ISOTOPES FROM PARAMAGNETIC RESONANCE SPECTRUM
PARAMAGNETIC RESONANCE SPECTRUM OF TRIVALENT GADOLINIUM IN THE CUBIC FIELD OF CALCIUM FLUORIDE
Journal Article
·
Sat Sep 15 00:00:00 EDT 1962
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4768106
RATIOS OF RELATIVE ABUNDANCE, MAGNETIC MOMENTS, AND CAPTURE CROSS SECTIONS OF GADOLINIUM ISOTOPES FROM PARAMAGNETIC RESONANCE SPECTRUM
Journal Article
·
Wed Jul 15 00:00:00 EDT 1959
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4218607
PARAMAGNETIC RESONANCE SPECTRUM OF TRIVALENT GADOLINIUM IN THE CUBIC FIELD OF CALCIUM FLUORIDE
Journal Article
·
Tue Jan 14 23:00:00 EST 1958
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4311436