Our group member Edouard Lesne succesfully defended his Phd thesis “Non-equilibrium spin accumulation phenomena at the LaAlO3/SrTiO3 quasi-two-dimensional electron system” on Friday, September 26. Bringing spins into this celebrated interface system was a formidable challenge, with very exiciting perspectives. Congrats to Edouard !
Ordered “ferroic” materials tend to divide into domains with different orientations of their order parameter. We have studied the interaction between two domain structures in a multiferroic heterostructure comprising a metamagnetic FeRh film grown epitaxially onto a ferroelectric and ferroelastic BaTiO3 crystal. We have used element-specific X-ray imaging to map the magnetic order and orientation of the FeRh while modulating temperature and electric field across BaTiO3, and have revealed local changes that are larger and more reversible than the global changes we previously reported. Our results emphasize the importance of understanding and harnessing nanoscale ferroic domain structure to achieved enhanced couplings in artificial multiferroics.
Local electrical control of magnetic order and orientation by ferroelastic domain arrangements just above room temperature
L. C. Phillips et al, Sci. Rep. 5, 10026 (2015)
We are very happy to welcome Hiroshi Naganuma in the group. “Hiro” is a visiting scientist from the University of Tohoku in Japan and he will stay with us for one year. More information about his profile is available here.