Title :
Ultrafast magnetostriction in the itinerant ferromagnet SrRuO3 studied by femtosecond x-ray diffraction
Author :
Schmising, C.v.Korff ; Bargheer, M. ; Harpoeth, A. ; Zhavoronkov, N. ; Ansari, Z. ; Woerner, M. ; Elsaesser, T. ; Vrejoiu, I. ; Hesse, D. ; Alexe, M.
Author_Institution :
Max-Born-Inst. fur Nichtlineare Opt. und Kurzzeitspektroskopie, Berlin
Abstract :
The ultrafast buildup of optically induced stress in ferromagnetic nanolayers of a SrRuO3/SrTiO3 superlattice is analyzed by femtosecond X-ray diffraction. Below the Curie temperature, magnetoelastic contractive stress reduces the expansive anharmonic phonon stress.
Keywords :
Curie temperature; X-ray diffraction; ferromagnetic materials; high-speed optical techniques; magnetoelastic effects; magnetostriction; nanostructured materials; phonons; strontium compounds; Curie temperature; SrRuO3-SrTiO3; anharmonic phonon stress; femtosecond X-ray diffraction; ferromagnetic nanolayers; itinerant ferromagnet; magnetoelastic contractive stress; optically induced stress; superlattice; ultrafast magnetostriction; Magnetic analysis; Magnetic superlattices; Magnetostriction; Optical diffraction; Optical superlattices; Phonons; Stress; Temperature; Ultrafast optics; X-ray diffraction; (320.7130) Ultrafast processes in condensed matter; (340.7480) X-rays;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
