L Carbone et al 2009 Class. Quantum Grav. 26 145009 doi:10.1088/0264-9381/26/14/145009
L Carbone, H Panjwani and C C Speake
Show affiliationsWe present a method of designing test masses with a high density of electron spins for use in mechanical experiments searching for weak spin interactions. Nested arrangements of rare-earth permanent magnets are shown to achieve spin densities of order 1024spins kg−1 together with stray magnetic fields at negligible levels. A full magnetostatic analysis of the proposed designs is presented, the mechanical feasibility is analyzed and the related manufacturing issues are addressed.
41.20.Gz Magnetostatics; magnetic shielding, magnetic induction, boundary-value problems
04.50.-h Higher-dimensional gravity and other theories of gravity
83C55 Macroscopic interaction of the gravitational field with matter (hydrodynamics, etc.)
Issue 14 (21 July 2009)
Received 20 February 2009, in final form 6 May 2009
Published 25 June 2009
L Carbone et al 2009 Class. Quantum Grav. 26 145009
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