100 MHz high-speed strain monitor using fiber Bragg grating and optical filter applied for magnetostriction measurements of cobaltite at magnetic fields beyond 100 T

Abstract

High-speed 100 MHz strain monitor using fiber Bragg grating (FBG) and an optical filter has been devised for the magnetostriction measurements under ultrahigh magnetic fields. The longitudinal magnetostriction of LaCoO${}_3$ has been measured at room temperature, 115, 7 and 4.2 K up to the maximum magnetic field of 150 T. The field-induced lattice elongations are observed, which are attributed to the spin-state crossover from the low-spin ground state to excited spin-states.

4 pages, 2 figures, proceedings of SCES 2017

References in corpus (3)

• A cascade of magnetic field induced spin transitions in LaCoO3
• Mechanism of spin crossover in LaCoO3 resolved by shape magnetostriction in pulsed magnetic fields
• Magnetic-field-induced spin crossover of Y-doped Pr${}_{0.7}$Ca${}_{0.3}$CoO${}_3$

Cited by in corpus (1)

• Magnetoelastic couplings in the deformed Kagomé quantum spin lattice of volborthite