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Magnetism

Experiments at neutron source BER II: new insights into multiferroics

2017-08-07
By: Antonia Roetger
On: 2017-08-07
In: Neutrons

An international team has examined pristine and slightly doped bismuth ferrite using experimental data obtained at HZB. The research shows the sequence of serial and trigger-type phase transitions, the temperature-dependent behavior of the order parameters, and the corresponding susceptibilities to external stimuli.  The material: Multiferroics are materials that exhibit multiple types of ferroic ordering, such as ferromagnetism and ferroelectricity, simultaneously. BiFeO3 (BFO) is the one of the rare multiferroics with a strong ferroelectric polarization, antiferromagnetism at room temperature as well as conduction and magnetotransport at domain walls. This makes it a candidate for a range of applications. The question: What are the underlying physical mechanismsRead More →

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