Strong permanent magnet gradient deflector for Stern-Gerlach-type experiments on molecular beams

Rev Sci Instrum. 2020 May 1;91(5):053202. doi: 10.1063/5.0007602.

Abstract

We describe the design, assembly, and testing of a magnet intended to deflect beams of paramagnetic nanoclusters, molecules, and atoms. It is energized by high-grade permanent neodymium magnets. This offers a convenient option in terms of cost, portability, and scalability of the construction while providing field and gradient values (1.1 T, 330 T/m), which are fully comparable with those of commonly used electromagnet deflectors.