Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - T-3 temperature dependence and a length scale for the thermal boundary resistance between a saturated dilute 3He-4He solution and sintered silver
AU - Cousins, DJ
AU - Fisher, SN
AU - Guénault, A.M.
AU - Pickett, George
AU - Smith, EN
AU - Turner, RP
PY - 1994/11/7
Y1 - 1994/11/7
N2 - We have measured the thermal boundary resistance between various configurations of sintered silver and a saturated He-3-He-4 solution between 8 and 150 mK. We observe that there is a length scale involved in the heat flow between sinter and liquid, which manifests itself as a thickness-dependent crossover from a T--1.5 dependence of the resistance at high temperatures to a T-3 behavior at low temperatures. This allows us to extract the Kapitza boundary resistance which we find to vary as T-3, as expected from simple theory, and not as T-2 as suggested by most recent measurements.
AB - We have measured the thermal boundary resistance between various configurations of sintered silver and a saturated He-3-He-4 solution between 8 and 150 mK. We observe that there is a length scale involved in the heat flow between sinter and liquid, which manifests itself as a thickness-dependent crossover from a T--1.5 dependence of the resistance at high temperatures to a T-3 behavior at low temperatures. This allows us to extract the Kapitza boundary resistance which we find to vary as T-3, as expected from simple theory, and not as T-2 as suggested by most recent measurements.
U2 - 10.1103/PhysRevLett.73.2583
DO - 10.1103/PhysRevLett.73.2583
M3 - Journal article
VL - 73
SP - 2583
EP - 2586
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 19
ER -