Positronium Fraction and Positron Life Time at Ni(110) and Ge(110) Surfaces

• Authors: S. Shrivastava , V. Gupta
• Languages of publication: EN

Abstracts

EN

The fraction of positronium formation and the positron lifetime at Ni(110) and Ge(110) surfaces, when low-energy positrons incident on them, have been calculated using the rate equations approach and positron trapping in image potential well. The calculated results are compared with the available experimental results. The positronium fraction is overestimated at high temperatures in case of Ni(110).

Keywords

EN

68.35.-p; 25.30.Hm

Discipline

• 25.30.Hm: Positron-induced reactions
• 68.35.-p: Solid surfaces and solid-solid interfaces: structure and energetics

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1991
• Volume: 79
• Issue: 6
• Pages: 853-859

Dates

published

1991-06

received

1989-09-04

(unknown)

1990-09-04

Contributors

author

S. Shrivastava

• School of Studies in Physics, Vikram University, Ujjain 456 010, India

author

V. Gupta

• School of Studies in Physics, Vikram University, Ujjain 456 010, India

Identifiers

DOI

10.12693/APhysPolA.79.853