Nanoscale Magnetic Materials - Magnetic Domains

Magnetic domains in magneto-electric composites

ME-composite-small

Magnetic domain effects in magneto-electric composite materials

The aim of the project is to investigate and optimize the magnetic domain structure in magneto-electric composites. Using spatially resolved characterization methods, we plan to obtain an understanding of the magnetic rearrangement processes in magneto-electric thin films. From this, concepts for the control of the magnetic domain behavior will be developed with the objective of achieving the largest effective magnetostriction or permeability. In addition, the mechanism of interaction between magnetostrictive and piezoelectric materials will be investigated. The studies are supported by comparative modeling of the magnetization reversal behavior. The investigations form a basis for the understanding of magnetoelectric composite behavior.

Magnetoelectric sensor domains at DFG Gepris

CRC 1261- Magnetoelectric Sensors: From Composite Materials to Biomagnetic Diagnostics

 

References

  1. N. O. Urs, I. Teliban, A. Piorra, R. Knöchel, E. Quandt, J. McCord, Origin of hysteretic magnetoelastic behavior in magnetoelectric 2-2 composites, Applied Physics Letters 105, 202406 (2014)
  2. V. Hrkac, E. Lage, G. Köppel, J. Strobel, J. McCord, E. Quandt, D. Meyners, L. Kienle, Amorphous FeCoSiB for exchange bias coupled and decoupled magnetoelectric multilayer systems: Real-structure and magnetic properties, Journal of Applied Physics 116, 134302 (2014)
  3. E. Lage, N. O. Urs, V. Röbisch, I. Teliban, R. Knöchel, D. Meyners, J. McCord, E. Quandt, Magnetic domain control and voltage response of exchange biased magnetoelectric composites, Applied Physics Letters 104, 132405 (2014)
  4. T. von Hofe, N. O. Urs, B. Mozooni, T. Jansen, C. Kirchhof, D. E. Bürgler, E. Quandt, J. McCord, Dual wavelength magneto-optical imaging of magnetic thin films, Applied Physics Letters 103, 142410 (2013) 
  5. S. B. Hrkac, M. Abes, C. T. Koops, C. Krywka, M. Müller, S. Kaps, R. Adelung, J. McCord, E. Lage, E. Quandt, O. M. Magnussen, and B. M. Murphy,  Local magnetization and strain in single magnetoelectric micorrod composites,  Applied Physics Letters 103,  123111  (2013)