University of Salerno View Institution's Website 1 article published in JoVE Engineering Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures Sergey V. Borisenko1, Volodymyr B. Zabolotnyy1, Alexander A. Kordyuk1,2, Danil V. Evtushinsky1, Timur K. Kim1,3, Emanuela Carleschi4, Bryan P. Doyle4, Rosalba Fittipaldi5, Mario Cuoco5, Antonio Vecchione5, Helmut Berger6 1Institute for Solid State Research, IFW-Dresden, 2Institute of Metal Physics of National Academy of Sciences of Ukraine, 3Diamond Light Source LTD, 4Department of Physics, University of Johannesburg, 5CNR-SPIN, and Dipartimento di Fisica "E. R. Caianiello", Università di Salerno, 6Institute of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne The overall goal of this method is to determine the low-energy electronic structure of solids at ultra-low temperatures using Angle-Resolved Photoemission Spectroscopy with synchrotron radiation.