Selected Publications

Magnetic Phase Transition in a Nanonetwork of Solid 3He in Aerogel

D.I. Bradley, S.N. Fisher, A.M. Guenault, R.P. Haley, N. Mulders, G.R. Pickett, D. Potts, P. Skyba, J. Smith, V. Tsepelin, R.C.V. Whitehead

When immersed in liquid ³He, the nanometer strands of aerogel are coated with a thin layer of solid ³HE, forming a network of irregular nanotubes. Owing to its high purity and weak interactions, this system is ideal for studying fundamental processes. We report the first experiments on solid ³He in aerogel at ultralow temperatures, cooled by direct adiabatic demagnetization. Simultaneous nuclear magnetic susceptibility and heat capacity measurements indicate a magnetic phase transition.

Phys. Rev. Lett. 105, 125303 (2010)

doi: 10.1103/PhysRevLett.105.125303