Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-19T11:50:00.351Z Has data issue: false hasContentIssue false

Critical Transport and Magnetization of La0.67Ca0.3MnO3

Published online by Cambridge University Press:  15 February 2011

G. Jeffrey Snyder
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305–4090
R. Hiskes
Affiliation:
Hewlett-Packard, Palo Alto, California 94303–0867
S. DiCarolis
Affiliation:
Hewlett-Packard, Palo Alto, California 94303–0867
M. R. Beasley
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305–4090
T. H. Geballe
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305–4090
Get access

Abstract

The critical magnetic properties of bulk La0.67Ca0.3MnO3 and magnetoresistance of a thin film with the same Tc were measured and critical exponents determined. The magnetization data can be scaled with β = 0.3 and γ = 0.9, except above Tc which appears to be affected by a region where X3 (M = XH + X3H3) is positive. An M2 dependence of the magnetoconducitvity is observed above Tc. Below Tc, however, such a correspondence between the critical magnetic and transport behavior is not found.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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] Snyder, G. J., Hiskes, R., DiCarolis, S., Beasley, M. R., and Geballe, T. H., Phys. Rev. B 53, 14434 (1996).Google Scholar
[2] Brug, J. A., Anthony, T. C., and Nickel, J. H., MRS Bulletin 21(9), 23 (1996).Google Scholar
[3] O'Donnell, J., Onellion, M., Rzchowski, M. S., Eckstein, J. N., and Bozovic, I., Phys. Rev. B (1996).Google Scholar
[4] Tokura, Y., Urushibara, A., Moritomo, Y., Arima, T., Asamitsu, A., Kido, G., and Furukawa, N., J. Phys. Soc. Jpn. 63, 3931 (1994).Google Scholar
[5] Hundley, M. F., Hawley, M., Heffner, R. H., Jia, Q. X., Neumeier, J. J., Tesmer, J., Thompson, J. D., and Wu, X. D., Appl. Phys. Lett. 67, 860 (1995).Google Scholar
[6] Snyder, G. J., Hiskes, R., DiCarolis, S., Beasley, M. R., and Geballe, T. H., Appl. Phys. Lett, (in press).Google Scholar
[7] Worledge, D. C., Snyder, G. J., Hiskes, R., DiCarolis, S., Beasley, M. R., and Geballe, T. H., J. Appl. Phys. (in press).Google Scholar