High-field 3He-F interaction at the surface of fluorocarbon spheres

A. Schuhl; M. Chapellier; Finn Berg Rasmussen

doi:10.1007/BF00683676

High-field ³He-F interaction at the surface of fluorocarbon spheres

A. Schuhl, M. Chapellier, Finn Berg Rasmussen

Condensed Matter Physics

16 Citations (Scopus)

Abstract

High-field experiments on the relaxation betweenF in small Teflon spheres andHe on the surface are reported. WithHe as a monolayer, coupling times are found to be less than 5 sec, in magnetic fields up to 3 T and temperatures down to 50 mK, where electronic centers are completely polarized. The results between 200 and 300 mK and for three magnetic fields fit a coupling model involving an unusually large exchange interaction in the monolayer. With liquidHe we obtain a linear dependence of theHe relaxation time upon both field and temperature.

Original language	English
Journal	Journal of Low Temperature Physics
Volume	57
Issue number	5-6
Pages (from-to)	483-499
Number of pages	17
ISSN	0022-2291
DOIs	https://doi.org/10.1007/BF00683676
Publication status	Published - 1 Dec 1984

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Faculty of Science

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abstract = "High-field experiments on the relaxation betweenF in small Teflon spheres andHe on the surface are reported. WithHe as a monolayer, coupling times are found to be less than 5 sec, in magnetic fields up to 3 T and temperatures down to 50 mK, where electronic centers are completely polarized. The results between 200 and 300 mK and for three magnetic fields fit a coupling model involving an unusually large exchange interaction in the monolayer. With liquidHe we obtain a linear dependence of theHe relaxation time upon both field and temperature.",

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T1 - High-field 3He-F interaction at the surface of fluorocarbon spheres

AU - Schuhl, A.

AU - Chapellier, M.

AU - Rasmussen, Finn Berg

PY - 1984/12/1

Y1 - 1984/12/1

N2 - High-field experiments on the relaxation betweenF in small Teflon spheres andHe on the surface are reported. WithHe as a monolayer, coupling times are found to be less than 5 sec, in magnetic fields up to 3 T and temperatures down to 50 mK, where electronic centers are completely polarized. The results between 200 and 300 mK and for three magnetic fields fit a coupling model involving an unusually large exchange interaction in the monolayer. With liquidHe we obtain a linear dependence of theHe relaxation time upon both field and temperature.

AB - High-field experiments on the relaxation betweenF in small Teflon spheres andHe on the surface are reported. WithHe as a monolayer, coupling times are found to be less than 5 sec, in magnetic fields up to 3 T and temperatures down to 50 mK, where electronic centers are completely polarized. The results between 200 and 300 mK and for three magnetic fields fit a coupling model involving an unusually large exchange interaction in the monolayer. With liquidHe we obtain a linear dependence of theHe relaxation time upon both field and temperature.

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KW - NMR

KW - low temperature

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U2 - 10.1007/BF00683676

DO - 10.1007/BF00683676

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JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 5-6

ER -

High-field ³He-F interaction at the surface of fluorocarbon spheres

Abstract

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