Hostname: page-component-84b7d79bbc-5lx2p Total loading time: 0 Render date: 2024-07-25T11:49:04.027Z Has data issue: false hasContentIssue false
  • English
  • Français

X-Ray Diffractometric Examination of Low-Temperature Phase Transformations in Single-Crystal Strontium Titanate

Published online by Cambridge University Press:  06 March 2019

Farrel W. Lytle
Farrel W. Lytle*
Affiliation:
Boeing Scientific Research Laboratories Seattle, Washington
Get access

Abstract

The lattice parameters of single-crystal SrTiO2 were determined by X-ray diffraction as a function of temperature from 4.2 to 300°K. Three significant regions were found: from 65 to 110°K a tetragonal modification, exists (c/a = 1.00056); from 35 to 55°K, line splitting consistent with orthorhornbic symmetry was observed, and at 10°K an anomalous maximum in the lattice parameter vs. temperature curve was found which suggested a third structure transformation. In the tetragonal region (at 78°K) the formation of a domain structure was observed with a polarising microscope. The low-temperature X-ray technique and X-ray cryostat are described.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 7: Twelfth Annual Conference on Applications of X-ray Analysis, August 7-9, 1963 , 1963 , pp. 136 - 145
Copyright
Copyright © International Centre for Diffraction Data 1963

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Rimai, L. and de Mars, G. A., “Electron Paramagnetic Resonance of Tri valent Gadolinium Ion in Strontium and Barium Titanates, Phys. Rev. 127: 702, 1962.Google Scholar
2. Bell, R. O. and Rupprecht, G., “Elastic Constants of Strontium Titante,” Phys, Rev. 129: 90, 1963.Google Scholar
3. Krogstad, R. S. and Moss, R. W., “Ultrasonic Study of Phase Transformation in Single Crystal SrTiO3 at 110°K,” Bull. Am. Phys. Soc. 7: 192, 1962.Google Scholar
4. Weber, M. J. and Allen, R. R., “Nuclear Magnetic Resonance in Study of the Phase Transition of Strontium Titanate,” J. Chem. Pkys, 38: 726, 1963.Google Scholar
5. Mitsui, T. and Westphal, W., “Dielectric and X-Ray Studies of CaxBa1-xTiO3 and CaxSx1-xTiO3, Pkys. Rev. 124: 1354, 1961.Google Scholar
6. Sawaguchi, E., Kikuchi, A., and Kodera, Y., “Microscopic Examination of SrTiOa at Low Temperatures,” J. Phys. Soc. Japan 18: 459, 1963.Google Scholar
7. Weik, H. and Lambert, V. L., “Lattice Distortions in a SrTiOa Single-Crystal Electret,” Phys, Rev. Letters 2: 51, 1963.Google Scholar
8. Känzig, W., “Ferroclectrics and Antiferroelectrics,” Solid State Physics, Vol. 4, F. Seite and D. Tumbull (eds.), Academic Press, Inc., New York, 1957, p. 5.Google Scholar
9. Porsbergh, P. W. Jr., “Domain Structures arid Phase Transitions in Barium Titanate,” Phys. Rev. 76: 1187, 1949.Google Scholar
10. Kay, H. F. and Vousden, P., “Symmetry Changes in Barium Titanate at Low Temperatures and Their Relation to Its Ferroelectric Properties,” Phil. Mag. 40: 1019, 1949.Google Scholar
11. Schoen, L. J. and Broida, H. P., “Glass Dewars for Optical and Other Studies at Low Temperatures,” Rev. Set. Inst. 33: 470, 1962.Google Scholar