TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Ideta, Shin-ichiro A1 - Zhang, Dongfang A1 - Dijkstra, Arend G. A1 - Artyukhin, Sergey A1 - Keskin, Sercan A1 - Cingolani, Roberto A1 - Shimojima, Takahiro A1 - Ishizaka, Kyoko A1 - Ishii, Hiroyuki A1 - Kudo, Kazutaka A1 - Nohara, Minoru A1 - Miller, R. J. Dwayne T1 - Ultrafast dissolution and creation of bonds in IrTe2 induced by photodoping JF - Science Advances N2 - The observation and control of interweaving spin, charge, orbital, and structural degrees of freedom in materials on ultrafast time scales reveal exotic quantum phenomena and enable new active forms of nanotechnology. Bonding is the prime example of the relation between electronic and nuclear degrees of freedom. We report direct evidence illustrating that photoexcitation can be used for ultrafast control of the breaking and recovery of bonds in solids on unprecedented time scales, near the limit for nuclear motions. We describe experimental and theoretical studies of IrTe2 using femtosecond electron diffraction and density functional theory to investigate bonding instability. Ir-Ir dimerization shows an unexpected fast dissociation and recovery due to the filling of the antibonding dxy orbital. Bond length changes of 20% in IrTe2 are achieved by effectively addressing the bonds directly through this relaxation process. These results could pave the way to ultrafast switching between metastable structures by photoinduced manipulation of the relative degree of bonding in this manner. Y1 - 2018 UN - https://nbn-resolving.org/urn:nbn:de:bsz:291:415-3700 UR - http://advances.sciencemag.org/content/advances/4/7/eaar3867.full.pdf SN - 2375-2548 SS - 2375-2548 U6 - https://doi.org/10.1126/sciadv.aar3867 DO - https://doi.org/10.1126/sciadv.aar3867 N1 - This artice has a correction: 10.1126/sciadv.aax2646 VL - 4 IS - 7 ER -