| Title: |
Positron trapping in deformed copper down to millikelvins |
| Author(s): |
M. Haaks  , C. Tramm, I. Müller , T. Staab , C. Zamponi , P. Herzog and K. Maier |
| Journal: |
Mater. Sci. Forum |
| Year: |
2004 |
| Volume: |
445-6 |
| Pages: |
96-98 |
| DOI: |
10.4028/www.scientific.net/MSF.445-446.96 |
| File URL: |
http://www.scientific.net/MSF.445-446.96 |
| Abstract: |
We have performed a study of the temperature dependence of the S-parameter on slightly deformed (7%) copper over a temperature range from room temperature (300 K) down to 7 mK, using a (3)He/(4)He dilution refrigerator. The sample used is expected to contain a spectrum of lattice defects with both deep and shallow traps. The data show a decrease of the S-parameter with temperature down to about 1K and a slight increase below 800 mK. |
