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

Faststoffysik

16 Citationer (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.

Originalsprog	Engelsk
Tidsskrift	Journal of Low Temperature Physics
Vol/bind	57
Udgave nummer	5-6
Sider (fra-til)	483-499
Antal sider	17
ISSN	0022-2291
DOI	https://doi.org/10.1007/BF00683676
Status	Udgivet - 1 dec. 1984

Emneord

Det Natur- og Biovidenskabelige Fakultet
NMR
low temperature

Adgang til dokumentet

10.1007/BF00683676

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Link to publication in Scopus

Citationsformater

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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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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.

KW - Faculty of Science

KW - NMR

KW - low temperature

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VL - 57

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JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

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