Peter Oppeneer is a Professor in the Materials Theory group within the Department of Physics and Astronomy at Uppsala University, Sweden. His research program focuses on theoretical condensed matter physics with emphasis on ultrafast phenomena and magnetic materials. His research interests span femtosecond magnetism, ultrafast spin and orbital currents, out-of-equilibrium magnon and phonon dynamics, unconventional superconductivity, multipolar and hidden order parameters, and orbitronics. The group develops both analytical theories and numerical simulation codes, combining ab initio methods with model Hamiltonian approaches. Key research thrusts include ultrafast demagnetization mechanisms, spin-crossover materials, molecular spintronics, and topological quantum states in magnetic materials. Analysis of recent publications reveals strong focus on altermagnetism, terahertz spin dynamics, Dirac semimetals, and laser-induced phase transitions. The group's work bridges fundamental quantum theory with applications in next-generation spintronic devices and ultrafast magnetic switching technologies. Collaborative activities include work with experimental groups on ultrafast spectroscopy, X-ray magnetic circular dichroism, and terahertz emission studies. The group maintains active collaborations across Europe and internationally, particularly in the areas of femtosecond magnetism and topological materials. Research infrastructure includes development of specialized computational codes for Eliashberg theory, dynamical mean field theory, and ultrafast spin dynamics simulations. The group contributes to major international facilities including synchrotron and free-electron laser sources for time-resolved studies.
