Photostimulated desorption of negative H/sup -/ ions from a cesiated W(100) surface

Journal Article · Sat Oct 15 04:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.8002· OSTI ID:7031234

Hurych, Z D; Soukiassian, P; Bakshi, M H; Bommannavar, A S; Young, C E; Schweitzer, E L; Pellin, M J; Gruen, D M

We report the first experimental observation of negative H/sup -/ ions photodesorbed from a cesiated W(100) surface. The kinetic energy of H/sup -/ ions is centered at 1 eV. The relatively flat spectral response of the H/sup -/ yield in the 30--100-eV photon energy range suggests that the electronic excitations responsible for H/sup -/ desorption involve bonding-to-antibonding level transitions and resonant tunneling within the adsorbate-substrate complex. Cesiation of the W(100) surface was found to be essential for H/sup -/ desorption.

• Research Organization: Department of Physics, Northern Illinois University, De Kalb, Illinois 60115
• OSTI ID: 7031234
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:12; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ANIONS
CATALYSIS
CESIUM ADDITIONS
CESIUM ALLOYS
CHARGED PARTICLES
COLLISIONS
CRYSTAL FACES
DESORPTION
ELEMENTS
FUNCTIONS
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
IONS
METALS
PHOTON COLLISIONS
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSITION ELEMENTS
TUNGSTEN
WORK FUNCTIONS