Electrical resistivity of La
The electrical resistivity of high-purity double hexagonal-close-packed (dhcp) ..cap alpha..-La from 5 to 300 K is reported. Measurements were made on small-grained samples prepared by heat treatment of cold-worked lanthanum. Measurements were also made on samples cut in different directions from an ingot slowly cooled from the molten state. The room-temperature results were all within 2% of the mean value. Chemically pure ..beta..-La (fcc) cannot be retained at room temperature, hence, measurements were made on an fcc sample of La containing 0.2-at. % Gd and approx. 0.8-at. % total interstitial nonmetallic impurities. The cubic form has almost the same type of temperature dependence as the dhcp form, but has a 10% lower magnitude.
- Research Organization:
- Ames Laboratory-ERDA and Departments of Physics and Materials Science and Engineering, Iowa State University, Ames, Iowa 50011
- OSTI ID:
- 7292365
- Journal Information:
- Phys. Rev., B; (United States), Vol. 16:6
- Country of Publication:
- United States
- Language:
- English
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