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- Title
The Properties of the Nonequilibrium LaB[sub 6] Surface Resulting from Field Evaporation.
- Authors
Gurin, V. N.; Korsukova, M. M.; Loginov, M. V.; Shrednik, V. N.
- Abstract
The nonequilibrium surface of single-crystal lanthanum hexaboride needles and its modifications are studied with a time-of-flight atomic probe. The surface is obtained by room-temperature field evaporation. The mass spectra of field evaporation shed light on the surface composition at the needle tip immediately after tip etching, corrosion in residual gases, intense cleaning by field evaporation, and the relaxation of the nonequilibrium surface by heating to 1250 K. Conditions for the breakdown of an oxide film on the tip surface and for obtaining the mass spectra of field evaporation for stoichiometric or lanthanum-enriched pure LaB[sub 6] single crystals are discussed.
- Subjects
LANTHANUM compounds; EVAPORATION (Chemistry); CRYSTALS; RELAXATION phenomena
- Publication
Technical Physics, 2001, Vol 46, Issue 9, p1161
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/1.1404170