Nonlinear acoustical investigations of 3He-B near the two-phonon pair breaking edge

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

doi:10.1016/0921-4526(94)90712-9

Nonlinear acoustical investigations of ³He-B near the two-phonon pair breaking edge

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

^*Corresponding author for this work

Not published at VTT

Helsinki University of Technology

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

Abstract

We report on experiments using energetic ultrasound pulses on superfluid ³He-B. Near the two-phonon pair breaking edge, at hf=Δ(T), an anomaly in ultrasonic attenuation has been detected. This feature grows with increasing acoustical intensity, and a new peak develops in the attenuation spectrum. The anomaly, coupling nonlinearly to ultrasound, can be observed also in the phase velocity of sound; in a magnetic field the anomaly splits to at least three features.

Original language	English
Pages (from-to)	765-766
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)90712-9
Publication status	Published - 2 Feb 1994
MoE publication type	A1 Journal article-refereed

Access to Document

10.1016/0921-4526(94)90712-9

Cite this

@article{66fbb7ef2e5d4529b290fad894cd1812,

title = "Nonlinear acoustical investigations of 3He-B near the two-phonon pair breaking edge",

abstract = "We report on experiments using energetic ultrasound pulses on superfluid 3He-B. Near the two-phonon pair breaking edge, at hf=Δ(T), an anomaly in ultrasonic attenuation has been detected. This feature grows with increasing acoustical intensity, and a new peak develops in the attenuation spectrum. The anomaly, coupling nonlinearly to ultrasound, can be observed also in the phase velocity of sound; in a magnetic field the anomaly splits to at least three features.",

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

year = "1994",

month = feb,

day = "2",

doi = "10.1016/0921-4526(94)90712-9",

language = "English",

volume = "194-196",

pages = "765--766",

journal = "Physica B: Physics of Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "PART 1",

}

TY - JOUR

T1 - Nonlinear acoustical investigations of 3He-B near the two-phonon pair breaking edge

AU - Manninen, A. J.

AU - Torizuka, K.

AU - Babkin, A. V.

AU - Pekola, J.P.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - We report on experiments using energetic ultrasound pulses on superfluid 3He-B. Near the two-phonon pair breaking edge, at hf=Δ(T), an anomaly in ultrasonic attenuation has been detected. This feature grows with increasing acoustical intensity, and a new peak develops in the attenuation spectrum. The anomaly, coupling nonlinearly to ultrasound, can be observed also in the phase velocity of sound; in a magnetic field the anomaly splits to at least three features.

AB - We report on experiments using energetic ultrasound pulses on superfluid 3He-B. Near the two-phonon pair breaking edge, at hf=Δ(T), an anomaly in ultrasonic attenuation has been detected. This feature grows with increasing acoustical intensity, and a new peak develops in the attenuation spectrum. The anomaly, coupling nonlinearly to ultrasound, can be observed also in the phase velocity of sound; in a magnetic field the anomaly splits to at least three features.

UR - https://www.scopus.com/pages/publications/17944396910

U2 - 10.1016/0921-4526(94)90712-9

DO - 10.1016/0921-4526(94)90712-9

M3 - Article

AN - SCOPUS:17944396910

SN - 0921-4526

VL - 194-196

SP - 765

EP - 766

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - PART 1

ER -

Nonlinear acoustical investigations of ³He-B near the two-phonon pair breaking edge

Abstract

Access to Document

Other files and links

Fingerprint

Cite this