Observation of new structures in the collective mode spectrum of 3HeB

Zuyu Zhao; S. Adenwalla; M. C. Shih; J. B. Ketterson; Bimal K. Sarmat

doi:10.1016/S0921-4526(90)81180-V

Observation of new structures in the collective mode spectrum of ³HeB

Zuyu Zhao^*, S. Adenwalla, M. C. Shih, J. B. Ketterson, Bimal K. Sarmat

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The single-ended, cw, impedance technique has been employed to study the squashing mode of 3.5. Superfluid ³HeB in a sound cell with a path length of 381 μm with ultrasound frequencies of 115.8 MHz and 141.6 MHz. A doublet splitting of the squashing mode has been observed and the magnitude of the splitting depends on the pressure. In addition, a "bump-like" structure, preceding the pair-breaking edge by about 3.5 MHz, has been observed with a sound frequency of 64.3 MHz in an applied magnetic field at pressures ranging from 4 to 7 bar.

Original language	English (US)
Pages (from-to)	661-662
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	165-166
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4526(90)81180-V
State	Published - Aug 1990

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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@article{85208b8d9b714ac99761bf025c5d136c,

title = "Observation of new structures in the collective mode spectrum of 3HeB",

abstract = "The single-ended, cw, impedance technique has been employed to study the squashing mode of 3.5. Superfluid 3HeB in a sound cell with a path length of 381 μm with ultrasound frequencies of 115.8 MHz and 141.6 MHz. A doublet splitting of the squashing mode has been observed and the magnitude of the splitting depends on the pressure. In addition, a {"}bump-like{"} structure, preceding the pair-breaking edge by about 3.5 MHz, has been observed with a sound frequency of 64.3 MHz in an applied magnetic field at pressures ranging from 4 to 7 bar.",

author = "Zuyu Zhao and S. Adenwalla and Shih, {M. C.} and Ketterson, {J. B.} and Sarmat, {Bimal K.}",

year = "1990",

month = aug,

doi = "10.1016/S0921-4526(90)81180-V",

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T1 - Observation of new structures in the collective mode spectrum of 3HeB

AU - Zhao, Zuyu

AU - Adenwalla, S.

AU - Shih, M. C.

AU - Ketterson, J. B.

AU - Sarmat, Bimal K.

PY - 1990/8

Y1 - 1990/8

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AB - The single-ended, cw, impedance technique has been employed to study the squashing mode of 3.5. Superfluid 3HeB in a sound cell with a path length of 381 μm with ultrasound frequencies of 115.8 MHz and 141.6 MHz. A doublet splitting of the squashing mode has been observed and the magnitude of the splitting depends on the pressure. In addition, a "bump-like" structure, preceding the pair-breaking edge by about 3.5 MHz, has been observed with a sound frequency of 64.3 MHz in an applied magnetic field at pressures ranging from 4 to 7 bar.

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