Contact

Dr. Iurii Scurschii
Strongly Correlated Electron Systems
i.scurschii@hzdr.de
Phone: +49 351 260 - 3421

Julia Blöcker
Secretary/ Administration
j.bloeckerAthzdr.de
Phone: +49 351 260 - 3527
Fax: +49 351 260 - 13527

Nicole Zimmermann
Secretary/Administration
n.zimmermannAthzdr.de
Phone: +49 351 260 - 3535

Scientists@work

This week, we are happy to welcome:

Name: Vadim Grinenko
Technische Universität Dresden Dresden


Name: Konstantin Skokov
TU Darmstadt Functional materials Darmstadt

Next Call

Launch: April, 2017

Deadline: May 15th, 2017

Here you find the online proposal form.

Further Information

Magnetostriction

An optical fiber Bragg grating (FBG) method developed at the HLD is used to measure magnetostriction in pulsed magnetic fields. The relative length change ΔL/L can be obtained from the shift of the wavelength of the reflected light in the FBG [1].

 Magnetostriction structure of an optical fiber Bragg grating  Magnetostriction principle of measurement
The structure of an optical fiber Bragg grating.
The principle of the measurement.

Relative length change (magnetostriction) thus is proportional to the relative wavelength change: Δλ/λ ∝ ΔL/L

Resolutions of about ΔL/L ~ 10-7 are achievable.

Standard temperature range is 1.4 – 300 K. Measurements down to ~0.6 K with a 3He system are also possible. This technique can be used in all our magnets.

The sample size should be > 1 mm.

Magnetostriction of single-crystalline LaCoO3   Magnetostriction of single-crystalline LaCoO3 (2)
Magnetostriction of single-crystalline LaCoO3 measured in pulsed magnetic fields. [2]

  

[1] R. Daou et al., Rev.Sci Instum. 81, 033909 (2010)

[2] M. Rotter et al., Sci. Rep. 4, 7003 (2014)