Generation of ultrasonic waves by ac magnetic fields in the mixed state of high-{ital T}{sub {ital c}} superconductors

Journal Article · Thu Jun 01 04:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.51.15649· OSTI ID:54969

Dominguez, D; Bulaevskii, L ^[1]; Ivlev, B ^[1]; Maley, M; Bishop, A R ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

We discuss the interaction of a vortex array in a superconductor with sound oscillations, taking into account pinning forces between vortices and crystal displacements. The generation of ultrasound by an ac electromagnetic field acting on the vortex array is considered. We find that at low temperatures and in the linear regime the amplitude of the induced sound wave is proportional to the applied dc magnetic field and independent of pinning strength. We show how the subsequent multiple echo amplitudes allow one to obtain information on the Magnus force and viscosity of the vortex array.

• Sponsoring Organization: USDOE
• OSTI ID: 54969
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 21 Vol. 51; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
MIXED STATE
MOTION
SOUND WAVES
ULTRASONIC WAVES
VORTICES