Persistent coherent spin precession in superfluid He-3-B driven by off-resonant excitation

Cousins, DJ and Fisher, SN and Gregory, AI and Pickett, GR and Shaw, NS (1999) Persistent coherent spin precession in superfluid He-3-B driven by off-resonant excitation. Physical review letters, 82 (22). pp. 4484-4487. ISSN 0031-9007

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Abstract

In superfluid He-3-B under conditions of negligible normal fluid density we are able to trap a domain of coherent spin precession away from the destructive influence of boundaries. After the domain is generated by an NMR pulse, the free spin precession may continue for several minutes. Remarkably, we find that these precessing domains may also be generated by cw excitation but only at a frequency considerably higher than that of the precession. We believe that this behavior may indicate that at our temperatures the precessing spin is able to stimulate the orbital moment into sympathetic precession. [S0031-9007(99)09224-8].

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
65424
Deposited By:
Deposited On:
27 Jun 2013 15:35
Refereed?:
Yes
Published?:
Published
Last Modified:
12 Mar 2020 03:15