[Todos] RECORDATORIO: MARTES 1° DE NOVIEMBRE: Charla del Dr. Josep Fontcuberta

[tierno]

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SEMINARIOS DEL IFLP Y DEL DEPARTAMENTO 

 MARTES 1° DE NOVIEMBRE / 11 HS / AULA CHICA 

"THE MAGNETISM OF OXIDES" 

 EXPONE: _JOSEP FONTCUBERTA_- INSTITUT DE CIÈNCIA DE MATERIALS DE
BARCELONA (ICMAB-CSIC) 

 Magnetite Fe3O4 guided the humankind towards unknown frontiers. Since
those early days, oxides have been the backbone of many scientific and
technologic developments and reached a peaceful maturity, robustly
settled in textbooks and deeply integrated in technological
applications, until late 1980's when the high temperature
superconductors were discovered. The subsequent rush stimulated an
impressive development in oxide thin film growth technologies and a deep
revision of the understanding of metal oxides and strongly correlated
electronic systems which ultimately boosted a tremendous explosion of
research on oxides. Today, long beyond the celebrated colossal
magnetoresistance, oxides are fuelling the discovery and development of
unexpected, intriguing and fascinating new areas of knowledge, such as
magnetic ferroelectrics and magnetic monopoles. Ferromagnetic oxides are
finding its way as active components in spintronics, either as spin
filters for advantageous magnetic tunnel junctions or used to manipulate
spins in nonmagnetic materials, which could eventually lead to pure
spin-current based rather than charge&spin-based devices, with prospects
of more energy-efficient spintronic devices. The tinny spin-orbit
coupling interaction, responsible for the magnetic anisotropy, has also
emerged as a fundamental interaction allowing to modulate electric
transport properties, not only of metallic ferromagnetic systems but
also in antiferromagnetic metals and insulators that may lead to a new
generation of magnetic memories. Still, "interface is the device" and
interfaces between oxides and metals and interfaces between large
band-gap oxides have led to the discovery of emerging properties such as
switchable "on-off" magnetization or magnetism and superconductivity
that challenges our understanding of oxides. This is the playground
where we happily play, learn and envision the future while enjoying
building a new science out of the old good oxides. Along the seminar, we
will jointly follow the track of the new materials and ideas that make
this journey possible and so successful. 

ww.iflp.unlp.edu.ar
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