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Keynote Speaker

Assoc. Prof. Edoardo Albisetti

Department of Physics, Polytechnic University of Milan, Italy

Phase nanoengineering in condensed matter for nanoelectronic applications

 

 

Phase nanoengineering enables the nanoscale tailoring of the physical properties of condensed matter systems using highly localized heating with focused lasers or thermal probes. Here, we summarize this approach through three examples: the control of spin waves in magnetic oxides, the patterning of magnetization textures in metallic multilayers, and the tuning of superconductivity in cuprate thin films.


In magnetic oxides such as YIG, laser-induced phase modification produces confined three-dimensional changes in the magnetic properties, enabling the engineering of the spin-wave band structure, and the realization of complex integrated magnonic circuits.
 

In metallic multilayers we show the grayscale tuning of the magnetic properties, leading to the creation of hidden magnetic information storage patterns and “moiré magnetic textures”.


In YBCO, a prototypic high-temperature cuprate superconductor, direct laser writing locally modifies superconducting properties, including critical temperature and current density, through thermally driven oxygen redistribution.


In all these examples nanoscale characterization tools such as scanning probe microscopy and optical methods provide direct access to the magnetic, electronic, and transport properties of the engineered phases.


The direct manipulation of the physical properties of condensed matter, beyond conventional nanofabrication, opens up unforeseen possibilities for the design of new advanced materials and functionalities in nanoelectronics.

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