125 citations · 327 across the 8 of their papers we have counts for
9 papers
Selective coupling of coherent phonons to intertwined charge-orbital and magnetic orders in doped manganites
X. Liu, M. Sander, S. -W. Huang +15
Strongly correlated materials feature technologically relevant functionalities such as high-temperature superconductivity and colossal magnetoresistance, which emerges from the com…
Coherent phonon control beyond amplitude saturation in a sliding ferroelectric
Jan Gerrit Horstmann, Christoph Emeis, Andrin Caviezel +5
The breakdown of Hooke's law marks the onset of nonlinear behaviour: when displacements become large, restoring forces weaken and conventional proportionality fails. In quantum mat…
Disentangling charge and structural contributions during coherent atomic motions studied by ultrafast resonant x-ray diffraction
L. Rettig, A. Caviezel, S. O. Mariager +20
We report on the ultrafast dynamics of charge order and structural response during the photoinduced suppression of charge and orbital order in a mixed-valence manganite. Employing…
Structural and Magnetic Dynamics in the Magnetic Shape Memory Alloy NiMnGa
S. O. Mariager, C. Dornes, J. A. Johnson +11
Magnetic shape memory Heusler alloys are multiferroics stabilized by the correlations between electronic, magnetic and structural order. To study these correlations we use time res…
Identification of coherent lattice modulations coupled to charge and orbital order in a manganite
A. Caviezel, S. O. Mariager, S. L. Johnson +7
We apply grazing-incidence femtosecond x-ray diffraction to investigate the details of the atomic motion connected with a displacively excited coherent optical phonon. We concentra…
Direct observation of non-fully-symmetric coherent optical phonons by femtosecond x-ray diffraction
S. L. Johnson, P. Beaud, E. Möhr-Vorobeva +3
We directly measure by femtosecond time-resolved x-ray diffraction the E symmetry coherent phonon excited in bismuth by strong optical excitation. The magnitude of the E mo…
Coherent phonon dynamics at the martensitic phase transition of Ni_2MnGa
S. O. Mariager, A. Caviezel, P. Beaud +2
We use time-resolved optical reflectivity to study the laser stimulated dynamics in the magnetic shape memory alloy Ni_2MnGa. We observe two coherent optical phonons, at 1.2 THz in…
Structural and magnetic dynamics of a laser induced phase transition in FeRh
S. O. Mariager, F. Pressacco, G. Ingold +11
We use time-resolved x-ray diffraction and magnetic optical Kerr effect to study the laser induced antiferromagnetic to ferromagnetic phase transition in FeRh. The structural respo…
Femtosecond dynamics of the collinear-to-spiral antiferromagnetic phase transition in CuO
S. L. Johnson, R. A. de Souza, U. Staub +22
We report on the ultrafast dynamics of magnetic order in a single crystal of CuO at a temperature of 207 K in response to strong optical excitation using femtosecond resonant x-ray…