ELFT HÍRADÓ

[SIMON Ferenc <f.simon AT eik.bme.hu>]

Kedves Kollégák,

Mindenkit szeretettel várunk erre a kétrészes szemináriumra, abstract 
alább.

üdvözlettel:
Simon Ferenc

Mindkét napon: Schay terem, BME F épület (Budafoki út 8), I. lépcsőház, 1. 
emelet
December 10 szerda, 14:00-15:30
December 12 péntek, 14:00-15:30

Altermagnets: Symmetry, Transport, and Spectroscopy  A Two-Part Seminar 
Series

Nemes M. Norbert

Department of Materials Physics, Universidad Complutense de Madrid

This seminar series introduces and systematically develops the physics of 
altermagnets, a recently identified class of collinear magnets that 
combine vanishing net magnetization with strong, symmetry-protected spin 
splitting in momentum space. The aim is to build a common working language 
across theory, experiment, and materials science for researchers 
interested in magnetism and spintronics at BME.

We will start from the symmetry aspects that distinguish altermagnets from 
conventional ferro- and antiferromagnets, including real- and k-space spin 
textures, magnetic space groups, and the minimal tight-binding and kp 
models used to describe them. The series will then focus on measurable 
consequences: anisotropic magnetoresistance, anomalous and spin Hall 
effects, nonlinear B relations, and other transport signatures that allow 
one to diagnose altermagnetic order in real materials.
A second central theme will be spectroscopic probes, with emphasis on 
magnetometry, electron spin resonance (ESR/EPR), antiferromagnetic 
resonance (AFMR), and complementary techniques such as ARPES and optical 
spectroscopy. Example material platforms will include transition-metal 
pnictides and oxides, intercalated chalcogenides, and selected 
two-dimensional systems.
Each session will combine a pedagogical introduction with the discussion 
of one or two key papers. The series is aimed broadly at MSc and PhD 
students, postdocs, and professors with a background in condensed matter 
or materials physics; prior expertise in altermagnets is not assumed, but 
familiarity with basic solid-state physics and magnetism is expected.