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Invited Lecture

Artificial Ferroic Systems

Thursday (08.06.2017)
09:50 - 10:30 Förde II + III
Part of:
12:20 Invited Lecture Similarities and differences between magnetic hysteresis and hysteresis in phase transformations 0 Richard James
13:00 Invited Lecture Discovery and Design of Multifunctional Materials using Combinatorial and High-Throughput Experimentation 1 Prof. Dr. Alfred Ludwig
15:10 Invited Lecture Tuning Mechanical Properties of Spider Cuticle by its Composition and by Structural Gradients 0 Dr. Yael Politi
15:50 Invited Lecture Surfaces and Gels for controlling Calcium Phosphate Deposition 0 Prof. Dr. Andreas Taubert
17:40 Invited Lecture Probing the Structure and Dynamic Behaviors of Ferroelectrics by Electron Microscopy with Atomic Resolution in Real Time 0 Prof. Xiaoqing Pan
18:20 Invited Lecture Magnetoelectric Composites for Energy Harvesting 1 Robert E. Hord, Jr. Professor Shashank Priya
19:40 Invited Lecture Declamping in Lead Magnesium Niobate – Lead Titanate Films 1 Prof. Susan Trolier-McKinstry
20:20 Invited Lecture Integrated Magnetics and Multiferroics for Compact and Power Efficient Sensing, Power, RF, Microwave and mm-Wave Electronics 0 Prof. Nian X. Sun
21:00 Invited Lecture From Maxwell’s displacement current to nanogenerator driven self-powered systems and blue energy 0 Prof. Zhong Lin Wang
21:40 Invited Lecture Magnetoelectric Composites: from Sensors to Sensor Systems 0 Prof. Dr.-Ing. Gerhard Schmidt
22:20 Invited Lecture Metal–insulator transition in vanadium oxides films and its applications 1 Dr. Keisuke Shibuya
00:20 Invited Lecture In operando photoemission spectroscopy of PMN-PT interfaces 0 Prof. Dr. Kai Rossnagel
08:30 Invited Lecture Titanium-Tantalum High Temperature Shape Memory Spring Actuators 1 Prof. Dr. Gunther Eggeler
09:10 Invited Lecture Vortex-antivortex topological structures in multiferroic tunnel junctions 1 Dr. Ana Sanchez
09:50 Invited Lecture Artificial Ferroic Systems 1 Prof. Laura Heyderman
17:40 Invited Lecture Biomimicry at the molecular level: Molecularly imprinted polymers as synthetic antibody mimics 0 Karsten Haupt
Session Chair
Topic Invited Lecture:
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L.J. Heyderman1,2 *1 Laboratory for Mesoscopic Systems, Department of Materials, ETH Zurich, 8093 Zurich,  Switzerland2 Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland* laura.heyderman@psi.chIn artificial ferroic systems [1], novel functionality is engineered through the combination of structured ferroic materials and the control of the interactions between the different components. I will present two classes of these systems, beginning with hybrid mesoscopic structures incorporating two different ferromagnetic layers. Here the static and dynamic behaviour result from the mutual imprint of the magnetic domain configurations, which can be exploited to create a nanoscale switch for the magnetisation [2]. I will also discuss multiferroic composites, which have the potential to provide control of the state of the magnetic components with an electric field [3, 4]. The second class is artificial spin ice, which consists of ordered arrays of dipolar-coupled nanomagnets. These systems display emergent magnetic monopoles, which can be manipulated with a magnetic field [5]. With zero-field observations of the temporal evolution of magnetic configurations, we show that systems with superparamagnetic elements provide a controlled route to the lowest-energy state [6, 7]. We have demonstrated that these thermally active systems are truly magnetic metamaterials that can support thermodynamic phase transitions equivalent to those found in microscopic spin systems [8]. Finally we have developed synchrotron x-ray methods to obtain chemical, structural and magnetic information in 3D [9], as well as to study magnetic correlations in smaller nanomagnets and at faster timescales [9].[1] L.J. Heyderman and R.L. Stamps, J. Phys.: Condens. Matter. (2013)[2] G. Heldt et al. Appl. Phys. Lett. (2014); P. Wohlhüter et al., Nat. Commun. (2015)[3] M. Buzzi et al. Phys. Rev. Lett. (2013)[4] D. Erdem et al. ACS Nano (2016)[5] E. Mengotti et al. Nature Phys. (2011)[6] A. Farhan et al. Nature Phys. (2013) & Phys. Rev. Lett. (2013)[7] V. Kapaklis et al. Nature Nanotech. 9, 514 (2014)[8] L. Anghinolfi et al. Nature Commun. (2015)[9] C. Donnelly et al. Phys. Rev. Lett. (2015) & Phys. Rev. B (2016)[10] J. Perron et al. Phys. Rev. B (2013) ; O. Sendetskyi et al. Phys. Rev. B (2016)

Prof. Laura Heyderman
Paul Scherrer Institute PSI