Ultrasonic investigations of vortex textures in 3HeA

J. M. Kyynarainen; J. P. Pekola; K. Torizuka; A. J. Manninen

doi:10.1016/S0921-4526(90)81159-L

Ultrasonic investigations of vortex textures in ³HeA

J. M. Kyynarainen^*
, J. P. Pekola
, K. Torizuka
, A. J. Manninen

^*Corresponding author for this work

Not published at VTT

Aalto University

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

1 Citation (Scopus)

Abstract

Zero sound attenuation has been used to probe vortex textures in rotating ³HeA. The highly nonlinear rotation speed dependencies of the measured sound amplitudes can be explained partly as being due to sonic velocity gradients in the vortex cores. Calculations of sound propagation in the geometrical limit have been made to extract information on the types of vortex cores and their sizes using our experimental data.

Original language	English
Pages (from-to)	619-620
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)81159-L
Publication status	Published - Aug 1990
MoE publication type	A1 Journal article-refereed

Funding

ACKNOWLEDGEMENTS We thank W. Wojtanowski for providing us with computer programs for calculating (Y and c, E. Sonin for useful discussions, and A. Babkin for taking part in some of the experiments. This work was supported by the Academy of Finland and by the K&ber-Stiftung (Hamburg).

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title = "Ultrasonic investigations of vortex textures in 3HeA",

abstract = "Zero sound attenuation has been used to probe vortex textures in rotating 3HeA. The highly nonlinear rotation speed dependencies of the measured sound amplitudes can be explained partly as being due to sonic velocity gradients in the vortex cores. Calculations of sound propagation in the geometrical limit have been made to extract information on the types of vortex cores and their sizes using our experimental data.",

author = "Kyynarainen, \{J. M.\} and Pekola, \{J. P.\} and K. Torizuka and Manninen, \{A. J.\}",

note = "Funding Information: ACKNOWLEDGEMENTS We thank W. Wojtanowski for providing us with computer programs for calculating (Y and c, E. Sonin for useful discussions, and A. Babkin for taking part in some of the experiments. This work was supported by the Academy of Finland and by the K\&ber-Stiftung (Hamburg). Copyright: Copyright 2015 Elsevier B.V., All rights reserved.",

year = "1990",

month = aug,

doi = "10.1016/S0921-4526(90)81159-L",

language = "English",

volume = "165-166",

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AU - Kyynarainen, J. M.

AU - Pekola, J. P.

AU - Torizuka, K.

AU - Manninen, A. J.

N1 - Funding Information: ACKNOWLEDGEMENTS We thank W. Wojtanowski for providing us with computer programs for calculating (Y and c, E. Sonin for useful discussions, and A. Babkin for taking part in some of the experiments. This work was supported by the Academy of Finland and by the K&ber-Stiftung (Hamburg). Copyright: Copyright 2015 Elsevier B.V., All rights reserved.

PY - 1990/8

Y1 - 1990/8

N2 - Zero sound attenuation has been used to probe vortex textures in rotating 3HeA. The highly nonlinear rotation speed dependencies of the measured sound amplitudes can be explained partly as being due to sonic velocity gradients in the vortex cores. Calculations of sound propagation in the geometrical limit have been made to extract information on the types of vortex cores and their sizes using our experimental data.

AB - Zero sound attenuation has been used to probe vortex textures in rotating 3HeA. The highly nonlinear rotation speed dependencies of the measured sound amplitudes can be explained partly as being due to sonic velocity gradients in the vortex cores. Calculations of sound propagation in the geometrical limit have been made to extract information on the types of vortex cores and their sizes using our experimental data.

UR - https://www.scopus.com/pages/publications/0025465660

U2 - 10.1016/S0921-4526(90)81159-L

DO - 10.1016/S0921-4526(90)81159-L

M3 - Article

AN - SCOPUS:0025465660

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SP - 619

EP - 620

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - PART 1

ER -

Ultrasonic investigations of vortex textures in ³HeA

Abstract

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