Events / Courses, Seminars & Conferences

Seminario “Frontiers in Materials”. Exchange Bias, the 2D magnetic interaction that is part of our modern life.

SEMINARIOS INTERNACIONALES DE FRONTERAS DE LA CIENCIA DE MATERIALES

Más información y registro en: http://eventos.upm.es/go/JoseLuisPrieto

Los Seminarios Internacionales de Fronteras de la Ciencia de Materiales son organizados por el Departamento de Ciencia de Materiales de la Universidad Politécnica de Madrid, y tienen periodicidad semanal. Su objetivo es servir de punto de encuentro, interacción y difusión de problemáticas actuales y destacadas dentro del área de la Ciencia e Ingeniería de Materiales; con una visión amplia que va desde los materiales biológicos a los materiales funcionales, pasando por aplicaciones puramente tecnológicas. En ellos se cuenta con la participación desinteresada de relevantes investigadores y tecnólogos de Universidades, Empresas y Centros de Investigación del ámbito nacional e internacional.

Estas conferencias se pueden ver en diferido a través del canal YOUTUBE-UPM


Miércoles 5 de diciembre 2018, 13:00h

ETSI Caminos, Canales y Puertos, UPM (Madrid)

Exchange Bias, the 2D magnetic interaction that is part of our modern life.

José Luis Prieto

(Instituto de Sistemas Optoelectrónicos y Microtecnología – ISOM – Universidad Politécnica de Madrid)

As in many other branches of science, magnetism has recently opened its eyes to the importance of interfacial interactions. Since the revolution of nanotechnology, growing very thin magnetic layers is within the reach of most research laboratories.
Thin films can ‘feel’ an interfacial interaction and the entire structure could be affected in such a way that it would be unthinkable at the macroscopic scale.  In particular, Exchange Bias is a very useful interfacial magnetic interaction that couples a ferromagnetic and an antiferromagnetic material, resulting in the ferromagnetic material behaving as if there was an invisible external magnetic field saturating its magnetization.
Exchange Bias was discovered 60 years ago and it is used in multitude of modern magnetic devices, notably in magnetic reading heads for hard drive disks. In this talk we will introduce this magnetic interaction and we will explain why it is so relevant in modern science and technology.
Additionally we will explain the only physical process that allowed setting the Exchange Bias in a sample and recent advances in an alternative curious mechanism that allows this magnetic surface interaction to evolve spontaneously at room temperature.

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