Abstract

Laser-excited Raman spectra have been observed in single crystals of Y2O3, Y2O3(Eu3+), Er2O3, and YB2O3 at 10, 80, and 300 K. In Y2O3(Eu3+) the symmetries of the excited levels have been determined. The optically active phonons can be separated into two groups; in one group (above 300 cm−1) the internal vibrations of (R.E.-O6) octahedrons are preponderant, whereas in the other group (below 200 cm−1) the translational motions of these octahedrons and the R.E. ions are dominant. In Y2O3(Eu3+) electronic transitions (2F02F2) of the Eu ions in C3i-site symmetry have been observed and the symmetries of the crystal-field-split levels have been determined. Other effects, which may also be attributed to electronic Raman transitions, have been observed in Er2O3 and Yb2O3.

© 1970 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. J. B. Gruber, W. F. Krupke, and J. M. Poindexter, J. Chem. Phys. 41, 3363 (1964).
    [Crossref]
  2. J. B. Gruber, J. R. Henderson, H. Muramoto, K. Rajnak, and J. G. Conway, J. Chem. Phys. 45, 477 (1966).
    [Crossref]
  3. N. T. McDevitt and A. D. Davidson, J. Opt. Soc. Am. 56, 636 (1966).
    [Crossref]
  4. D. Bloor, E. Ellis, D. H. Martin, and A. Wadham, J. Appl. Phys. 39, 971 (1968).
    [Crossref]
  5. H. Bonrath, K. H. Hellwedge, K. Nicoly, and G. Weber, Phys. Kondens. Materie 4, 382 (1966).
  6. R. M. Moon, H. R. Child, W. C. Koehler, and L. J. Raubenheimer, J. Appl. Phys. 38, 1383 (1967).
    [Crossref]
  7. B. H. Soffer and R. H. Hoskins, Appl. Phys. Letters 6, 200 (1965).
    [Crossref]
  8. R. W. G. Wyckoff, Crystal Structures, Vol. 2, 2nd ed. (Wiley–Interscience, New York, 1964).
  9. I. Warshaw and R. Roy, in Progress in the Science and Technology of the Rare Earths, edited by LeRoy Eyring (Pergamon, Oxford, 1964), p. 203.
  10. G. Schäfer, dissertation, Inst. für Technische Physik, T. H. Darmstadt, 1969.
  11. J. A. Koningstein and O. S. Mortensen, J. Mol. Spectrosc. 27, 343 (1968).
    [Crossref]
  12. N. C. Chang and J. B. Gruber, J. Chem. Phys. 41, 3227 (1964).
    [Crossref]
  13. J. A. Koningstein and O. Sonnich Mortensen, J. Opt. Soc. Am. 58, 1208 (1968).
    [Crossref]
  14. R. Loudon, Advan. Phys. 13, 423 (1964).
    [Crossref]
  15. H. Forest and G. Ban, J. Electrochem. Soc. 116, 474 (1969).
    [Crossref]
  16. G. K. Koster, J. D. Dimmock, R. G. Wheeler, and H. Statz, Properties of the Thirty-Two-Point Groups (M.I.T. Press, Cambridge, Mass., 1963).
  17. Y. D. Harker, C. Y. She, and D. F. Edwards, Appl. Phys. Letters 15, 272 (1969).
    [Crossref]
  18. R. G. Wheeler, in Optical Properties of Ions in Crystals, edited by H. M. Crosswhite and H. W. Moos (Wiley–Interscience, New York, London, Sydney, 1967), p. 533.

1969 (2)

H. Forest and G. Ban, J. Electrochem. Soc. 116, 474 (1969).
[Crossref]

Y. D. Harker, C. Y. She, and D. F. Edwards, Appl. Phys. Letters 15, 272 (1969).
[Crossref]

1968 (3)

J. A. Koningstein and O. Sonnich Mortensen, J. Opt. Soc. Am. 58, 1208 (1968).
[Crossref]

D. Bloor, E. Ellis, D. H. Martin, and A. Wadham, J. Appl. Phys. 39, 971 (1968).
[Crossref]

J. A. Koningstein and O. S. Mortensen, J. Mol. Spectrosc. 27, 343 (1968).
[Crossref]

1967 (1)

R. M. Moon, H. R. Child, W. C. Koehler, and L. J. Raubenheimer, J. Appl. Phys. 38, 1383 (1967).
[Crossref]

1966 (3)

H. Bonrath, K. H. Hellwedge, K. Nicoly, and G. Weber, Phys. Kondens. Materie 4, 382 (1966).

J. B. Gruber, J. R. Henderson, H. Muramoto, K. Rajnak, and J. G. Conway, J. Chem. Phys. 45, 477 (1966).
[Crossref]

N. T. McDevitt and A. D. Davidson, J. Opt. Soc. Am. 56, 636 (1966).
[Crossref]

1965 (1)

B. H. Soffer and R. H. Hoskins, Appl. Phys. Letters 6, 200 (1965).
[Crossref]

1964 (3)

N. C. Chang and J. B. Gruber, J. Chem. Phys. 41, 3227 (1964).
[Crossref]

R. Loudon, Advan. Phys. 13, 423 (1964).
[Crossref]

J. B. Gruber, W. F. Krupke, and J. M. Poindexter, J. Chem. Phys. 41, 3363 (1964).
[Crossref]

Ban, G.

H. Forest and G. Ban, J. Electrochem. Soc. 116, 474 (1969).
[Crossref]

Bloor, D.

D. Bloor, E. Ellis, D. H. Martin, and A. Wadham, J. Appl. Phys. 39, 971 (1968).
[Crossref]

Bonrath, H.

H. Bonrath, K. H. Hellwedge, K. Nicoly, and G. Weber, Phys. Kondens. Materie 4, 382 (1966).

Chang, N. C.

N. C. Chang and J. B. Gruber, J. Chem. Phys. 41, 3227 (1964).
[Crossref]

Child, H. R.

R. M. Moon, H. R. Child, W. C. Koehler, and L. J. Raubenheimer, J. Appl. Phys. 38, 1383 (1967).
[Crossref]

Conway, J. G.

J. B. Gruber, J. R. Henderson, H. Muramoto, K. Rajnak, and J. G. Conway, J. Chem. Phys. 45, 477 (1966).
[Crossref]

Davidson, A. D.

Dimmock, J. D.

G. K. Koster, J. D. Dimmock, R. G. Wheeler, and H. Statz, Properties of the Thirty-Two-Point Groups (M.I.T. Press, Cambridge, Mass., 1963).

Edwards, D. F.

Y. D. Harker, C. Y. She, and D. F. Edwards, Appl. Phys. Letters 15, 272 (1969).
[Crossref]

Ellis, E.

D. Bloor, E. Ellis, D. H. Martin, and A. Wadham, J. Appl. Phys. 39, 971 (1968).
[Crossref]

Forest, H.

H. Forest and G. Ban, J. Electrochem. Soc. 116, 474 (1969).
[Crossref]

Gruber, J. B.

J. B. Gruber, J. R. Henderson, H. Muramoto, K. Rajnak, and J. G. Conway, J. Chem. Phys. 45, 477 (1966).
[Crossref]

N. C. Chang and J. B. Gruber, J. Chem. Phys. 41, 3227 (1964).
[Crossref]

J. B. Gruber, W. F. Krupke, and J. M. Poindexter, J. Chem. Phys. 41, 3363 (1964).
[Crossref]

Harker, Y. D.

Y. D. Harker, C. Y. She, and D. F. Edwards, Appl. Phys. Letters 15, 272 (1969).
[Crossref]

Hellwedge, K. H.

H. Bonrath, K. H. Hellwedge, K. Nicoly, and G. Weber, Phys. Kondens. Materie 4, 382 (1966).

Henderson, J. R.

J. B. Gruber, J. R. Henderson, H. Muramoto, K. Rajnak, and J. G. Conway, J. Chem. Phys. 45, 477 (1966).
[Crossref]

Hoskins, R. H.

B. H. Soffer and R. H. Hoskins, Appl. Phys. Letters 6, 200 (1965).
[Crossref]

Koehler, W. C.

R. M. Moon, H. R. Child, W. C. Koehler, and L. J. Raubenheimer, J. Appl. Phys. 38, 1383 (1967).
[Crossref]

Koningstein, J. A.

J. A. Koningstein and O. S. Mortensen, J. Mol. Spectrosc. 27, 343 (1968).
[Crossref]

J. A. Koningstein and O. Sonnich Mortensen, J. Opt. Soc. Am. 58, 1208 (1968).
[Crossref]

Koster, G. K.

G. K. Koster, J. D. Dimmock, R. G. Wheeler, and H. Statz, Properties of the Thirty-Two-Point Groups (M.I.T. Press, Cambridge, Mass., 1963).

Krupke, W. F.

J. B. Gruber, W. F. Krupke, and J. M. Poindexter, J. Chem. Phys. 41, 3363 (1964).
[Crossref]

Loudon, R.

R. Loudon, Advan. Phys. 13, 423 (1964).
[Crossref]

Martin, D. H.

D. Bloor, E. Ellis, D. H. Martin, and A. Wadham, J. Appl. Phys. 39, 971 (1968).
[Crossref]

McDevitt, N. T.

Moon, R. M.

R. M. Moon, H. R. Child, W. C. Koehler, and L. J. Raubenheimer, J. Appl. Phys. 38, 1383 (1967).
[Crossref]

Mortensen, O. S.

J. A. Koningstein and O. S. Mortensen, J. Mol. Spectrosc. 27, 343 (1968).
[Crossref]

Muramoto, H.

J. B. Gruber, J. R. Henderson, H. Muramoto, K. Rajnak, and J. G. Conway, J. Chem. Phys. 45, 477 (1966).
[Crossref]

Nicoly, K.

H. Bonrath, K. H. Hellwedge, K. Nicoly, and G. Weber, Phys. Kondens. Materie 4, 382 (1966).

Poindexter, J. M.

J. B. Gruber, W. F. Krupke, and J. M. Poindexter, J. Chem. Phys. 41, 3363 (1964).
[Crossref]

Rajnak, K.

J. B. Gruber, J. R. Henderson, H. Muramoto, K. Rajnak, and J. G. Conway, J. Chem. Phys. 45, 477 (1966).
[Crossref]

Raubenheimer, L. J.

R. M. Moon, H. R. Child, W. C. Koehler, and L. J. Raubenheimer, J. Appl. Phys. 38, 1383 (1967).
[Crossref]

Roy, R.

I. Warshaw and R. Roy, in Progress in the Science and Technology of the Rare Earths, edited by LeRoy Eyring (Pergamon, Oxford, 1964), p. 203.

Schäfer, G.

G. Schäfer, dissertation, Inst. für Technische Physik, T. H. Darmstadt, 1969.

She, C. Y.

Y. D. Harker, C. Y. She, and D. F. Edwards, Appl. Phys. Letters 15, 272 (1969).
[Crossref]

Soffer, B. H.

B. H. Soffer and R. H. Hoskins, Appl. Phys. Letters 6, 200 (1965).
[Crossref]

Sonnich Mortensen, O.

Statz, H.

G. K. Koster, J. D. Dimmock, R. G. Wheeler, and H. Statz, Properties of the Thirty-Two-Point Groups (M.I.T. Press, Cambridge, Mass., 1963).

Wadham, A.

D. Bloor, E. Ellis, D. H. Martin, and A. Wadham, J. Appl. Phys. 39, 971 (1968).
[Crossref]

Warshaw, I.

I. Warshaw and R. Roy, in Progress in the Science and Technology of the Rare Earths, edited by LeRoy Eyring (Pergamon, Oxford, 1964), p. 203.

Weber, G.

H. Bonrath, K. H. Hellwedge, K. Nicoly, and G. Weber, Phys. Kondens. Materie 4, 382 (1966).

Wheeler, R. G.

G. K. Koster, J. D. Dimmock, R. G. Wheeler, and H. Statz, Properties of the Thirty-Two-Point Groups (M.I.T. Press, Cambridge, Mass., 1963).

R. G. Wheeler, in Optical Properties of Ions in Crystals, edited by H. M. Crosswhite and H. W. Moos (Wiley–Interscience, New York, London, Sydney, 1967), p. 533.

Wyckoff, R. W. G.

R. W. G. Wyckoff, Crystal Structures, Vol. 2, 2nd ed. (Wiley–Interscience, New York, 1964).

Advan. Phys. (1)

R. Loudon, Advan. Phys. 13, 423 (1964).
[Crossref]

Appl. Phys. Letters (2)

Y. D. Harker, C. Y. She, and D. F. Edwards, Appl. Phys. Letters 15, 272 (1969).
[Crossref]

B. H. Soffer and R. H. Hoskins, Appl. Phys. Letters 6, 200 (1965).
[Crossref]

J. Appl. Phys. (2)

D. Bloor, E. Ellis, D. H. Martin, and A. Wadham, J. Appl. Phys. 39, 971 (1968).
[Crossref]

R. M. Moon, H. R. Child, W. C. Koehler, and L. J. Raubenheimer, J. Appl. Phys. 38, 1383 (1967).
[Crossref]

J. Chem. Phys. (3)

N. C. Chang and J. B. Gruber, J. Chem. Phys. 41, 3227 (1964).
[Crossref]

J. B. Gruber, W. F. Krupke, and J. M. Poindexter, J. Chem. Phys. 41, 3363 (1964).
[Crossref]

J. B. Gruber, J. R. Henderson, H. Muramoto, K. Rajnak, and J. G. Conway, J. Chem. Phys. 45, 477 (1966).
[Crossref]

J. Electrochem. Soc. (1)

H. Forest and G. Ban, J. Electrochem. Soc. 116, 474 (1969).
[Crossref]

J. Mol. Spectrosc. (1)

J. A. Koningstein and O. S. Mortensen, J. Mol. Spectrosc. 27, 343 (1968).
[Crossref]

J. Opt. Soc. Am. (2)

Phys. Kondens. Materie (1)

H. Bonrath, K. H. Hellwedge, K. Nicoly, and G. Weber, Phys. Kondens. Materie 4, 382 (1966).

Other (5)

R. W. G. Wyckoff, Crystal Structures, Vol. 2, 2nd ed. (Wiley–Interscience, New York, 1964).

I. Warshaw and R. Roy, in Progress in the Science and Technology of the Rare Earths, edited by LeRoy Eyring (Pergamon, Oxford, 1964), p. 203.

G. Schäfer, dissertation, Inst. für Technische Physik, T. H. Darmstadt, 1969.

G. K. Koster, J. D. Dimmock, R. G. Wheeler, and H. Statz, Properties of the Thirty-Two-Point Groups (M.I.T. Press, Cambridge, Mass., 1963).

R. G. Wheeler, in Optical Properties of Ions in Crystals, edited by H. M. Crosswhite and H. W. Moos (Wiley–Interscience, New York, London, Sydney, 1967), p. 533.

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

Fig. 1
Fig. 1

Unit cell of the rare-earth oxides in the cubic C modification. Full circles: R.E. ions in C3i symmetry, others: R.E. ions in C2 symmetry. The positions of oxygen ions are indicated by the distorted octahedrons surrounding the ions 1 and 5. Length of the axis: (10.604) Å for Y2O3.8

Fig. 2
Fig. 2

Relation between the system of the cubic axes of the crystal (ξ,η,ζ) and the experimental systems (x,y,z), whose z axis coincides with the [111] direction of the cube.

Fig. 3
Fig. 3

Raman spectra of cubic R.E. oxides and R.E.-doped yttrium at 80 K. The intensities are only relative and the polarization of the incident light is chosen so that all Raman-active modes should be seen.

Fig. 4
Fig. 4

Observed Raman-active levels in the four oxides studied. The infrared-active Tu transitions3 are indicated by a semicircle.

Tables (6)

Tables Icon

Table I The scattering tensors (ai) of Raman-active transitions in Th symmetry in the system of the cubic axes (first row) and the scattering matrices related to the experimental coordinate system (Fig. 1). R(γ,β,α): matrices describing the rotation around α, β, γ.

Tables Icon

Table II Wavenumber, relative integrated intensities of the elements of the scattering matrix, and assignment of some Raman transitions in Y2O3(Eu3+). The intensities of the electronic transitions (see Table V) at 830, 948, and 1184 cm−1 cannot be compared directly with the other lines because they were observed with a higher gain. Precision of the intensities stated: ±10%, values in brackets: ±25%.

Tables Icon

Table III Raman-active (Ag, Eg, and Tg) and infrared-active (Tu) phonon transitions [values of McDevitt et al., Ref. (3)] of R.E. oxides, in cm−1. The infrared-active transitions have been observed at room temperature in powdered samples, the Raman-active ones at ~10 K. The temperature shift of the wavenumbers is negligible between 10 and 80 K; it is 3–4 cm−1 to lower values for a temperature rise from 80 to 300 K. Lines without assignment are Raman transitions too weak for identification, (el) means a possible electronic transition. The Tu values in the Y2O3(Er) and Y2O3(Eu) columns are values of pure yttria.

Tables Icon

Table IV Reducible representations of the unit cell of the cubic R.E. oxides. (a) 80 isolated ions in the unit cell, (b) the unit cell contains 8 rigid (R.E. O6) units on C3i sites and 24 isolated R.E. ions in C2 sites.

Tables Icon

Table V Symmetry types occurring in the decomposition of representations (a) and (b) of Table IV.

Tables Icon

Table VI Correlation of symmetry types of the (R.E. O6) octahedron.

Equations (2)

Equations on this page are rendered with MathJax. Learn more.

( Y 0.92 Eu 0.08 ) 2 · O 3 ;             Er 2 O 3 and Yb 2 O 3 .
( a 0 0 0 a 0 0 0 b )