title: High resolution magnetostriction measurements in pulsed magnetic fields using fiber Bragg gratings.
abstract: We report on a new high resolution apparatus for measuring magnetostriction suitable for use at cryogenic temperatures in pulsed high magnetic fields which we have developed at the Hochfeld-Magnetlabor Dresden. Optical fiber strain gauges based on fiber Bragg gratings are used to measure the strain in small (approximately 1 mm) samples. We describe the implementation of a fast measurement system capable of resolving strains in the order of 10(-7) with a full bandwidth of 47 kHz, and demonstrate its use on single crystal samples of GdSb and GdSi.
authors.affiliation: Max Planck Institute for the Chemical Physics of Solids, 01187 Dresden, Germany.
authors.forename: Ramzy
authors.initials: R
authors.lastname: Daou
authors.forename: Franziska
authors.initials: F
authors.lastname: Weickert
authors.forename: Michael
authors.initials: M
authors.lastname: Nicklas
authors.forename: Frank
authors.initials: F
authors.lastname: Steglich
authors.forename: Ariane
authors.initials: A
authors.lastname: Haase
authors.forename: Mathias
authors.initials: M
authors.lastname: Doerr