Measurement of superfluid He-3 film flow by inter-digitated capacitors

M Saitoh; H Ikegami; H Mukuda; K Kono

doi:10.1023/B:JOLT.0000012579.18512.bc

Measurement of superfluid He-3 film flow by inter-digitated capacitors

M Saitoh^*, H Ikegami, H Mukuda, K Kono

^*Corresponding author for this work

International College of Semiconductor Technology

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

7 Scopus citations

Abstract

We report the measurements of the critical current of superfluid He-3 film for the thickness of 0.47 mum. By employing inter-digitated capacitors, 2.5x10(-2) mm(3) He-3 can be manipulated with 0.4% resolution. Critical current J(c)(f) of superfluid He-3 film were observed for the onset of dissipative flow. The magnitude of measured J(c)(f) is considerably smaller than the theoretically predicted pair-breaking critical current. This result indicates that another mechanism must participate in the dissipation of superflow.

Original language	English
Pages (from-to)	357-362
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	134
Issue number	1-2
DOIs	https://doi.org/10.1023/B:JOLT.0000012579.18512.bc
State	Published - Jan 2004
Event	13th International Symposium on Quantum Fluids and Solids - ALBUQUERQUE Duration: 3 Aug 2003 → 8 Aug 2003

Keywords

Magnetic Material
Critical Current
Film Flow
Dissipative Flow

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10.1023/B:JOLT.0000012579.18512.bc

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title = "Measurement of superfluid He-3 film flow by inter-digitated capacitors",

abstract = "We report the measurements of the critical current of superfluid He-3 film for the thickness of 0.47 mum. By employing inter-digitated capacitors, 2.5x10(-2) mm(3) He-3 can be manipulated with 0.4% resolution. Critical current J(c)(f) of superfluid He-3 film were observed for the onset of dissipative flow. The magnitude of measured J(c)(f) is considerably smaller than the theoretically predicted pair-breaking critical current. This result indicates that another mechanism must participate in the dissipation of superflow.",

keywords = "Magnetic Material, Critical Current, Film Flow, Dissipative Flow",

author = "M Saitoh and H Ikegami and H Mukuda and K Kono",

year = "2004",

month = jan,

doi = "10.1023/B:JOLT.0000012579.18512.bc",

language = "English",

volume = "134",

pages = "357--362",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "Springer New York",

number = "1-2",

note = "13th International Symposium on Quantum Fluids and Solids ; Conference date: 03-08-2003 Through 08-08-2003",

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TY - JOUR

T1 - Measurement of superfluid He-3 film flow by inter-digitated capacitors

AU - Saitoh, M

AU - Ikegami, H

AU - Mukuda, H

AU - Kono, K

PY - 2004/1

Y1 - 2004/1

N2 - We report the measurements of the critical current of superfluid He-3 film for the thickness of 0.47 mum. By employing inter-digitated capacitors, 2.5x10(-2) mm(3) He-3 can be manipulated with 0.4% resolution. Critical current J(c)(f) of superfluid He-3 film were observed for the onset of dissipative flow. The magnitude of measured J(c)(f) is considerably smaller than the theoretically predicted pair-breaking critical current. This result indicates that another mechanism must participate in the dissipation of superflow.

AB - We report the measurements of the critical current of superfluid He-3 film for the thickness of 0.47 mum. By employing inter-digitated capacitors, 2.5x10(-2) mm(3) He-3 can be manipulated with 0.4% resolution. Critical current J(c)(f) of superfluid He-3 film were observed for the onset of dissipative flow. The magnitude of measured J(c)(f) is considerably smaller than the theoretically predicted pair-breaking critical current. This result indicates that another mechanism must participate in the dissipation of superflow.

KW - Magnetic Material

KW - Critical Current

KW - Film Flow

KW - Dissipative Flow

U2 - 10.1023/B:JOLT.0000012579.18512.bc

DO - 10.1023/B:JOLT.0000012579.18512.bc

M3 - Article

SN - 0022-2291

VL - 134

SP - 357

EP - 362

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 1-2

T2 - 13th International Symposium on Quantum Fluids and Solids

Y2 - 3 August 2003 through 8 August 2003

ER -

Measurement of superfluid He-3 film flow by inter-digitated capacitors

Abstract

Keywords

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