Temperature Increase of Highly-Polarized Fermi Liquids in Spin-Echo Experiments

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dc.creatorRagan, R.
dc.creatorGrunwald, K.
dc.creatorGlenz, C.
dc.date2005-02-08
dc.date.accessioned2026-07-07T03:03:40Z
dc.date.available2026-07-07T03:03:40Z
dc.descriptionWe show that there are restrictions on the maximum tipping angle that can be used without significantly raising the temperature of the He-3 distribution in high B/T spin-echo experiments with pure liquid He-3 and He3-He4 solutions. The temperature increase occurs during the diffusion process as quasiparticles in mixed-spin states are scattered and converted into thermal excitations at the spin-up and spin-down Fermi surfaces. This temperature increase can mimic the effects of zero temperature attenuation, leading to a higher values of the measured anisotropy temperature T_a. We analyze the dependence of the increase on polarization, initial temperature, He-3 concentration, and tip angle, and estimate the size of the effect in recent experiments.
dc.description6 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0502221
dc.identifierhttp://arxiv.org/abs/cond-mat/0502221
dc.identifierJ. Low Temp. Phys. 126 (2002) 163-169
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25837
dc.subjectStatistical Mechanics
dc.titleTemperature Increase of Highly-Polarized Fermi Liquids in Spin-Echo Experiments
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