11:15 - 12:35
ORAL SESSION - Honoring Prof. Hans Schmid
Room: Room4
Oral presentation
Chair/s:
José Antônio Eiras
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Structural characterization of ferroic materials by advanced spectroscopy techniques
Rattikorn Yimnirun 1, Jaru Jutimoosik 1, Saroj Rujirawat 1, Santi Maensiri 1, Pablo Esquinazi 3, Jochen Stahn 4, Amitesh Paul 2
1 School of Physics, Institute of Science and NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials Suranaree University of Technology, 30000, Nakhon Ratchasima, Thailand
2 Technische Universität München, Physik Department, Lehrstuhl für Neutronenstreuung, James-Franck-Strasse 1, D-85748 Garching b., München, Germany
3 Division of Superconductivity and Magnetism, University of Leipzig, D-04103, Leipzig, Germany
4 4Laboratory for Neutron Scattering Paul Scherrer Institut, CH-5232, Villigen, Switzerland

The Synchrotron-based X-Ray Absorption Near-edge Spectroscopy (XANES) and Polarized Neutron Reflectivity (PNR) techniques were employed to investigate the structural properties of BiFe1-xMnxO3 ceramic and Co/CoO/Au multilayer, especially to study the local structure of Mn in BiFe1-xMnxO3 ceramic and to verify the formation of secondary phase in Co/CoO/Au multilayer. Theoretical XANES spectra calculations corroborate with the interpretation of the XANES experimental data. In addition, the Co/CoO/Au multilayer was examined to explore the degree of recovery of the untrained state after the first two field cycles. Such a recovery was expected by field cycling a reorientation field along a direction of orientation angle away from the initial field cooling direction. Measurements as a function of and the strength of (along each direction) map the influence of on the reversal mechanism in the layers and thereby the degree of recovery.

Reference:
We-S42-O-01
Presenter/s:
Rattikorn Yimnirun
Presentation type:
Oral communication
Room:
Room4
Chair/s:
José Antônio Eiras
Date:
Wednesday, September 6th, 2017
Time:
11:15 - 11:30
Session times:
11:15 - 12:35
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