VISCOSITY INCREASE UPON SPIN POLARIZATION OF A DILUTE FERMI GAS
Journal or Book Title
PHYSICAL REVIEW LETTERS
A vibrating-wire technique has been used to directly measure the viscosity increase in a dilute 3-4He solution caused by brute-force spin polarization up to 40%. The viscosity of a solution with degeneracy temperature TF=19.5 mK was measured over the temperature range 6.1–100 mK in magnetic fields of 1.00 and 7.96 T. Spin polarization caused a marked decrease in the mechanical Q of the viscometer at low temperatures. The observed viscosity is compared with calculations of the transport coefficients of dilute quantum gases for all temperatures and spin polarizations.
CANDELA, D; WEI, LJ; MCALLASTER, DR; and Mullin, WJ, "VISCOSITY INCREASE UPON SPIN POLARIZATION OF A DILUTE FERMI GAS" (1991). PHYSICAL REVIEW LETTERS. 66.
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