Resolution of New Structure in the Collective-Mode Spectrum of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>3</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>-<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>B</mi></math></span>

B. S. Shivaram; M. W. Meisel; Bimal K. Sarma; D. B. Mast; W. P. Halperin; J. B. Ketterson

doi:10.1103/PhysRevLett.49.1646

Resolution of New Structure in the Collective-Mode Spectrum of ${}^{3}{He}$ - $B$

B. S. Shivaram, M. W. Meisel, Bimal K. Sarma^*, D. B. Mast^†, W. P. Halperin, and J. B. Ketterson

Department of Physics and Astronomy and Materials Research Center, Northwestern University, Evanston, Illinois 60201

^*Present address: Solid State Science Division, Argonne National Laboratory, Argonne, Ill. 60439.
^†Present address: Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106.

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Phys. Rev. Lett. 49, 1646 – Published 29 November, 1982

DOI: https://doi.org/10.1103/PhysRevLett.49.1646

Abstract

A high-resolution acoustic impedance technique has been used to investigate the real squashing, $J = 2$ , mode in ${}^{3}{He}$ - $B$ . For a magnetic field perpendicular to the sound propagation direction, six components have been observed. The two center states appear to be a splitting of the $J_{z} = 0$ mode. This new splitting is observed to be dependent on $\frac{T}{T_{c}}$ , pressure, and/or frequency, but is independent of magnetic field. In $H ≅ 0$ , additional features have been observed which can be associated with dispersion-induced mode splitting.

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Resolution of New Structure in the Collective-Mode Spectrum of ${}^{3}{He}$ - $B$

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Resolution of New Structure in the Collective-Mode Spectrum of He3-B

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Resolution of New Structure in the Collective-Mode Spectrum of ${}^{3}{He}$ - $B$