NMR investigation of the magnetic-susceptibility anisotropy in HE-3-A.

Haley, Richard and Armstrong, Allen and Clancy, Fergus and Manninen, Antti and Hook, John and Hall, Henry (1995) NMR investigation of the magnetic-susceptibility anisotropy in HE-3-A. Journal of Low Temperature Physics, 101 (3-4). pp. 787-792. ISSN 0022-2291

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Abstract

We have investigated transverse continuous wave NMR in a geometry where the modes are influenced by susceptibility anisotropy. The helium sample is separated by mylar foils into layers 12 mu m thick perpendicular to the external dc magnetic field. In this geometry l is constrained to be parallel to the field and d switches from parallel to perpendicular to the field over a small range of field around the dipole unlocking field. The mode frequencies below this critical field yield a value for the susceptibility anisotropy. Above the critical field the expected negative frequency shift is observed, as well as a positive frequency shift due to bulk material and an unexpected signal close to the Larmor frequency.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Low Temperature Physics
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
23511
Deposited By:
Deposited On:
03 Feb 2009 08:59
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 06:34