Positron mobility in anthracene

Authors

A. P. Mills, Nokia Bell Labs
N. Karl, Universität Stuttgart
D. M. Zuckerman, Nokia Bell Labs
J. Passner, Yale University
J. Hensel, New Jersey Institute of Technology
C. D. Beling, The University of Hong Kong

Document Type

Article

Publication Date

1-1-1992

Abstract

We have measured the positron mobility μ in a sample of scintillation grade anthracene at two temperatures. We obtain at 300 K: μ=(26.0±0.9±2.6) cm²V^-1s^-1 and at 77 K: μ=(33.4±1.1±3.3) cm²V^-1s^-1, where the first error estimate is statistical and the second is systematic. We have also made preliminary measurements on a highly purified sample that yields μ=(130±3±20) cm² V^-1 s^-1 at 300 K. The data are consistent with the hypothesis that the positron is scattered from both impurities and acoustic phonons in the first sample, and predominantly from photons in the second. It appears that positrons in pure anthracene crystals are delocalized and have a mean free path of about 85 Å at room temperature. © 1992 Springer-Verlag.

Identifier

34249842092 (Scopus)

Publication Title

Applied Physics A Solids and Surfaces

External Full Text Location

https://doi.org/10.1007/BF00348124

e-ISSN

14320630

ISSN

07217250

First Page

22

Last Page

25

Issue

1

Volume

54

Recommended Citation

Mills, A. P.; Karl, N.; Zuckerman, D. M.; Passner, J.; Hensel, J.; and Beling, C. D., "Positron mobility in anthracene" (1992). Faculty Publications. 17475.
https://digitalcommons.njit.edu/fac_pubs/17475