TY - JOUR
T1 - Evaporation and thermionic emission processes of Pb/W(110) imaged in situ by emission electron microscopy
AU - Fikidome, Hirokazu
AU - Yoshimura, Masamichi
AU - Ueda, Kazuyuki
PY - 2006/1/10
Y1 - 2006/1/10
N2 - Evaporation and thermionic emission processes of Pb/W(110) have been studied in situ by emission electron microscopy (EEM). By the photoemitted EEM, the evaporation of Pb except the first layer has been observed In situ at 603-673 K, resulting in an increase in the work function that prevents photoemission of electrons. By heating to 1200 K, the surface can be again imaged by EEM even without illumination, i.e., thermionic emission electron microscopy (TEEM). This TEEM observation at lower temperatures than usual becomes possible owing to thermionic emission assisted by the electric field between the objective lens and the surface.
AB - Evaporation and thermionic emission processes of Pb/W(110) have been studied in situ by emission electron microscopy (EEM). By the photoemitted EEM, the evaporation of Pb except the first layer has been observed In situ at 603-673 K, resulting in an increase in the work function that prevents photoemission of electrons. By heating to 1200 K, the surface can be again imaged by EEM even without illumination, i.e., thermionic emission electron microscopy (TEEM). This TEEM observation at lower temperatures than usual becomes possible owing to thermionic emission assisted by the electric field between the objective lens and the surface.
KW - Evaporation
KW - Pb
KW - Photoemission electron microcopy
KW - Thermionic emission electron microscopy
KW - Tungsten
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U2 - 10.1143/JJAP.45.70
DO - 10.1143/JJAP.45.70
M3 - Article
AN - SCOPUS:31544468108
SN - 0021-4922
VL - 45
SP - 70
EP - 72
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 1 A
ER -