Volume 48, Number 2, October II 1999
|Page(s)||182 - 186|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 September 2002|
Soundwave propagation in pulsed magnetic fields in
Physikalisches Institut, Johann Wolfgang Goethe Universität Frankfurt Robert Mayerstr.2-4, 60054 Frankfurt/Main, Germany
Accepted: 20 August 1999
We present for the first time ultrasonic velocity and attenuation measurements in pulsed magnetic fields up to 50 T. A quadrature method was used which allows us to measure velocity and attenuation changes simultaneously. To demonstrate this new experimental technique for pulsed field experiments we determine the elastic properties of the triangular antiferromagnet . This substance exhibits different spin phases as a function of magnetic field showing spectacular effects in propagating sound waves. Our pulsed field experiments reveal new features of these magnetic phases.
PACS: 62.65.+k – Acoustical properties of solids / 75.30.Kz – Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.) / 43.20.Hq – Velocity and attenuation of acoustic waves
© EDP Sciences, 1999
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