ARPES: A Probe of Electronic Correlations

摘要: Angle-resolved photoemission spectroscopy (ARPES) is one of the most direct methods studying electronic structure solids. By measuring kinetic energy and angular distribution electrons photoemitted from a sample illuminated with sufficiently high-energy radiation, can gain information on both momentum propagating inside material. This vital importance in elucidating connection between electronic, magnetic, chemical solids, particular for those complex systems which cannot be appropriately described within independent-particle picture. Among various classes systems, great interest are transition metal oxides, have been at center stage condensed matter physics last four decades. Following general introduction to topic, we will lay theoretical basis needed understand pivotal role ARPES study such systems. After brief overview state-of-the-art capabilities technique, review some interesting relevant case studies novel revealed by 3d-, 4d- 5d-based oxides.