Physics Colloquium Series
- Friday, February 1, 2013 at 4:10pm
- Barnard Hall - view map
Dr. Natalia Perkins from the University of Wisconsin - Madison Physics Department will present "Emergent phases of correlated electrons in materials with spin-orbit coupling and magnetic frustration".
Recently spin-orbit coupling (SOC) effects have become a subject of intensive research across many different disciplines in condensed matter physics. In particular, SOC has been appreciated in correlated electron systems with orbital degrees of freedom for its role in creating a new class of electronic states that allow crossed-responses of the electrons to electric and magnetic fields. The effects of SOC are especially pronounced in 4d and 5d transition-metal compounds, which have large intrinsic atomic SOC due to their high atomic weight. In these materials electrons are more delocalized than in the 3d systems, the Coulomb interaction is effectively screened, and SOC often becomes a dominant interaction, which makes the hierarchy of energy scales very unusual.
- Sarah Barutha