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Course

PHYS-745: Spin Dynamics

Summary

The course is conceived in the perspective of understanding the fundamentals of spintronics. This implies learning about magnetism at the quantum mechanical level, mechanisms for spin relaxation and spin transport, including Berry phase. Various forms of magnetic resonance are presented.

Lectures

Instructor

Jean-Philippe Ansermet

Jean-Philippe Ansermet was born March 1, 1957 in Lausanne (legal origin Vaumarcus, NE). He obtained a diploma as physics engineer of EPFL in 1980. He went on to get a PhD from the University of Illinois at Urbana-Champaign where, from 1985 to 1987, he persued as post-doc with Prof. Slichter his research on catalysis by solid state NMR studies of molecules bound to the surface of catalysts. From 1987 to 1992 he worked at the materials research center of Ciba-Geigy, on polymers for microelectronics, composites, dielectrics and organic charge transfer complexes. In March 1992, as professor of experimental physics, he developed a laboratory on the theme of nanostructured materials and turned full professor in 1995. Since 1992, he teaches classical mechanics, first to future engineering students, since 2004 to physics majors. Since 2000, he teaches thermodynamics also, to the same group of students. He offers a graduate course in spintronics, and another on spin dynamics. His research activities concern the fabrication and properties of magnetic nanostructures produced by electrodeposition. His involvement since the early days of spintronics have allowed him to gain recognition for his work on giant magnetoresistance (CPP-GMR), magnetic relaxation of single nanostructures, and was among the leading groups demonstrating magnetization reversal by spin-polarized currents. Furthermore, his group uses nuclear magnetic resonance , on the one hand as means of investigation of surfaces and electrodes, on the other hand, as a local probe of the electronic properties of complex ferromagnetic oxides.

Official source

Moodle Page

http://go.epfl.ch/PHYS-745

Summary

Lectures

Instructor

Jean-Philippe Ansermet

Official source

Moodle Page

http://go.epfl.ch/PHYS-745

Ontological neighbourhood

Physics

Thermodynamics: Statistical mechanics

Condensed matter physics: Phase transitions

Atomic physics: Topics in atomic physics

Chemistry

Physical chemistry: Spectroscopy

Lectures in this course (14)

Spin Dynamics: Introduction to the course

Covers spintronics concepts, magnetism, transport, relaxation, coherences, course structure, and learning outcomes.

Exchange: Intra-atomic and Inter-atomic

Explores the fundamentals of exchange interactions, including intra-atomic and inter-atomic exchange, spin-orbit coupling, and Dzyaloshinskii-Moryia coupling.

Ferromagnetic Resonance

Explores the effective field, spin waves, demagnetization field, and spin wave dispersions in thin films.

Antiferromagnetic Resonance

Explores the spin-flop transition, susceptibility, and magnetic resonance in antiferromagnets.

Spin Coherence: Double Quantum Coherence

Explores spin echo, quadrupolar echoes, and double quantum coherence in spin dynamics.

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