Rotating sample magnetometer for cryogenic temperatures and high   magnetic fields
  We report on the design and implementation of a rotating sample magnetometer (RSM) operating in the variable temperature insert of a cryostat equipped with a high-field magnet. The limited space and the cryogenic temperatures impose the most critical design parameters: the small bore size of the magnet requires a very compact pick-up coil system and the low temperatures demand a very careful design of the bearings. Despite these difficulties the RSM achieves excellent resolution at high magnetic field sweep rates, exceeding that of a typical vibrating sample magnetometer by about a factor of ten. In addition the gas-flow cryostat and the high-field superconducting magnet provide a temperature and magnetic field range unprecedented for this type of magnetometer. 
M. Eisterer, F. Hengstberger, C. S. Voutsinas, N. H\"orhager, S.   Sorta, J. Hecher, H. W. Weber
cond-mat.supr-con physics.ins-det