Design of high-density electron spin-polarized test masses

Ludovico Carbone, H Panjwani, Clive Speake

Research output: Contribution to journalArticle

4 Citations (Scopus)


We 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 10(24) spins 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.
Original languageEnglish
Pages (from-to)145009
Number of pages1
JournalClassical and Quantum Gravity
Issue number14
Publication statusPublished - 21 Jul 2009


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