Using as a magnetometer

✍ Scribed by S. Calder; S.R. Giblin; S.T. Bramwell

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 191 KB
• Volume: 404
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2008.11.204

✦ Synopsis

The precession of muons implanted in a non-magnetic sample at a distance from a magnetized body has been investigated experimentally. Specifically, the muons were implanted into a silver sheet several millimeters from a magnetized nickel sheet. An exact theoretical expression for the field from a uniformly magnetized body was found to provide an excellent description of the average muon precession as a function of distance between the two samples. This experiment illustrates the possibility of using an easy modification to the standard mSR experiment to provide a bulk probe of the sample magnetization with the same time dependence as the usual local probe. This may help in the interpretation of certain mSR experiments as well as controlling for sample perturbation by the muons.