% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Vidal:617597, author = {Vidal, Franck and Zheng, Y. and Ferrari, Eugenio and Allaria, E. and Spezzani, C. and Laulhé, C. and Popescu, H. and Atkinson, P. and Casaretto, N. and Eddrief, M. and Wang, H. and Zhao, J. and Seaberg, M. and Alonso-Mori, R. and Glownia, J. M. and Chollet, M. and Xu, H. and Huang, X. and Lima, F. and Khakhulin, D. and Bermudez Macias, I. J. and Vinci, D. and Biednov, M. and Jiang, Y. and Uemura, Y. and Ardana-Lamas, F. and Zalden, P. and Milne, C. and Sacchi, M.}, title = {{U}ltrafast magnetostructural dynamics of {M}n{A}s}, journal = {Physical review / B}, volume = {110}, number = {14}, issn = {2469-9950}, address = {Woodbury, NY}, publisher = {Inst.}, reportid = {PUBDB-2024-06903}, pages = {L140406}, year = {2024}, abstract = {The ultrafast dynamics of 𝛼-MnAs magnetization and atomic structure are studied by the time-resolved magneto-optical Kerr effect and time-resolved x-ray diffraction after photoexcitation. In the basal plane of the hexagonal unit cell, Mn atomic disorder increases on a timescale of 400 fs, comparable to the laser-induced demagnetization timescale and significantly faster than As disorder (700 fs). This differentiation of the Mn and As relaxation times is observed in the ferromagnetic phase but disappears in the paramagnetic phase. These results strongly support recent density-functional theory calculations predicting that the magnetostructural phase transition of MnAs is driven by a change in nature of the dominant interactions between Mn 3𝑑 electrons, from magnetic exchange to bonding interactions.}, cin = {MPY}, ddc = {530}, cid = {I:(DE-H253)MPY-20120731}, pnm = {621 - Accelerator Research and Development (POF4-621)}, pid = {G:(DE-HGF)POF4-621}, experiment = {EXP:(DE-MLZ)NOSPEC-20140101}, typ = {PUB:(DE-HGF)16}, UT = {WOS:001343349000005}, doi = {10.1103/PhysRevB.110.L140406}, url = {https://bib-pubdb1.desy.de/record/617597}, }