Photoinduced Lattice Instability in SnSe

Yijing Huang, 2, 3 Shan Yang, Samuel Teitelbaum, 3 Gilberto De la Peña, 3 Takahiro Sato, Matthieu Chollet, Diling Zhu, Jennifer L. Niedziela, 7 Dipanshu Bansal, Andrew F. May, Aaron M. Lindenberg, 3, 8 Olivier Delaire, 9, 10 David A. Reis, 2, 3, 11 and Mariano Trigo 3 Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA Department of Applied Physics, Stanford University, Stanford, California 94305, USA PULSE Institute of Ultrafast Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, USA Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, USA Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA Department of Physics, Duke University, Durham, North Carolina 27708, USA Department of Chemistry, Duke University, Durham, North Carolina 27708, USA Department of Photon Science, Stanford University, Stanford, California 94305, USA