Nonlinear acoustic spectroscopy on the real squashing collective mode in 3He-B

H. Alles; A. V. Babkin; A. J. Manninen; K. Torizuka; J.P. Pekola

doi:10.1016/0921-4526(94)90707-2

Nonlinear acoustic spectroscopy on the real squashing collective mode in ³He-B

H. Alles^*
, A. V. Babkin
, A. J. Manninen
, K. Torizuka
, J.P. Pekola

^*Corresponding author for this work

Not published at VTT

Aalto University
Helsinki University of Technology

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

Abstract

We have excited the real squashing (RSQ) collective modes in ³He-B with two simultaneous ultrasound pulses, yielding two-phonon absorption (TPA). We also detected TPA using single-frequency high-intensity sound pulses. The Zeeman splitting of the parametrically excited RSQ mode has been demonstrated. We checked the dispersion relations of the J=2⁺ modes in zero magnetic field and extracted the collective mode velocities directly from experiments.

Original language	English
Pages (from-to)	755-756
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	194-196
Issue number	PART 1
DOIs	https://doi.org/10.1016/0921-4526(94)90707-2
Publication status	Published - 2 Feb 1994
MoE publication type	A1 Journal article-refereed

Funding

This work was supported by the Academy of Finland.

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10.1016/0921-4526(94)90707-2

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title = "Nonlinear acoustic spectroscopy on the real squashing collective mode in 3He-B",

abstract = "We have excited the real squashing (RSQ) collective modes in 3He-B with two simultaneous ultrasound pulses, yielding two-phonon absorption (TPA). We also detected TPA using single-frequency high-intensity sound pulses. The Zeeman splitting of the parametrically excited RSQ mode has been demonstrated. We checked the dispersion relations of the J=2+ modes in zero magnetic field and extracted the collective mode velocities directly from experiments.",

author = "H. Alles and Babkin, \{A. V.\} and Manninen, \{A. J.\} and K. Torizuka and J.P. Pekola",

note = "Funding Information: This work was supported by the Academy of Finland.",

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doi = "10.1016/0921-4526(94)90707-2",

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AU - Alles, H.

AU - Babkin, A. V.

AU - Manninen, A. J.

AU - Torizuka, K.

AU - Pekola, J.P.

N1 - Funding Information: This work was supported by the Academy of Finland.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - We have excited the real squashing (RSQ) collective modes in 3He-B with two simultaneous ultrasound pulses, yielding two-phonon absorption (TPA). We also detected TPA using single-frequency high-intensity sound pulses. The Zeeman splitting of the parametrically excited RSQ mode has been demonstrated. We checked the dispersion relations of the J=2+ modes in zero magnetic field and extracted the collective mode velocities directly from experiments.

AB - We have excited the real squashing (RSQ) collective modes in 3He-B with two simultaneous ultrasound pulses, yielding two-phonon absorption (TPA). We also detected TPA using single-frequency high-intensity sound pulses. The Zeeman splitting of the parametrically excited RSQ mode has been demonstrated. We checked the dispersion relations of the J=2+ modes in zero magnetic field and extracted the collective mode velocities directly from experiments.

UR - https://www.scopus.com/pages/publications/0028759487

U2 - 10.1016/0921-4526(94)90707-2

DO - 10.1016/0921-4526(94)90707-2

M3 - Article

AN - SCOPUS:0028759487

SN - 0921-4526

VL - 194-196

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JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - PART 1

ER -

Nonlinear acoustic spectroscopy on the real squashing collective mode in ³He-B

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