Torsional oscillator studies of rotating 3He-A in a slab

Paul M. Walmsley, Derek J. Cousins, Henry E. Hall, Andrei I. Golov

    Research output: Contribution to journalArticlepeer-review


    Using a rotating cryostat we have manipulated l-textures of 3He-A in a 0.26 mm-thick slab contained in a torsional oscillator. Application of a magnetic field or a counterflow due to rotation lead to a sudden distortion of a uniform texture. The uniformity of the initial texture can be characterized by the resulting shift in frequency and bandwidth of the torsional resonance. With a certain density of vortices induced by rotation a uniform texture can be stabilized even in presence of magnetic. The optimal speed of rotation to prepare a uniform texture while cooling through Tc was found. The critical velocities for the flow-induced textural transition and vortex nucleation are determined. © 2003 Elsevier Science B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)68-69
    Number of pages1
    JournalPhysica B: Condensed Matter
    Publication statusPublished - May 2003


    • 3He-A
    • Superfluidity
    • Texture
    • Vortex


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