3. February 2015

Ultrafast structural dynamics of the Fe-pnictide parent compound BaFe2As2

Understanding the interplay of the various degrees of freedom such as the electrons, spins and lattice is essential for many complex materials, including the high-temperature superconductors. In the case of the Fe pnictides, especially the strong sensitivity of the electronic and magnetic properties to the exact shape and size of the Fe-As tetrahedra (Fig. 1, left) plays a crucial role for superconductivity and demonstrates a strong magneto-structural coupling. In addition, antiferromagnetic phases are closely linked to structural distortions in these materials.
Original Publication
Ultrafast Structural Dynamics of the Fe-Pnictide Parent Compound BaFe2As2
L. Rettig, S. O. Mariager, A. Ferrer, et al., Phys. Rev. Lett. 114, 067402 (2015)
DOI: 10.1103/PhysRevLett.114.067402
Contact
Dr Laurenz Rettig
Laboratory for Synchrotron Radiation - Condensed Matter Physics,
Paul Scherrer Institute, 5232 Villigen, Switzerland
Telephone: +41 56 310 - 5624, email: laurenz.rettig@psi.ch


Dr Urs Staub
Laboratory for Synchrotron Radiation - Condensed Matter Physics,
Paul Scherrer Institute, 5232 Villigen, Switzerland
Telephone: +41 56 310 - 4494, email: urs.staub@psi.ch