University of Birmingham > Talks@bham > Condensed Matter Physics Seminars > Dark matter axions and new schemes to detect them?

Dark matter axions and new schemes to detect them?

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  • UserProf. Clive Speake, University of Birmingham
  • ClockFriday 23 January 2015, 14:00-15:00
  • HousePhysics East 217.

If you have a question about this talk, please contact Elizabeth Blackburn.

There is currently an increasing interest in the possibility that axions could be a component of dark-matter in our galaxy. In response to this, a number of schemes are being proposed that exploit the coupling of axions to intrinsic spin. Schemes using this interaction show promise in opening up a new window of axion mass scales that is out of the range of the current methods that employ axion-photon conversion. The spin coupling interaction results in the axion wind applying, to a fermion, an effective magnetic field of a magnitude about 10-21 T at a frequency of 20 GHz or so. How can they be detected? I will briefly review the methods that have been proposed to date, including atomic Zeeman systems and magnetic dipole radiation detection schemes. I will describe in a little more detail a scheme that uses ferromagnetic resonance that I have been working on in collaboration with University of Padua.

This talk is part of the Condensed Matter Physics Seminars series.

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