General Lab Information

Christopher Homes

FIS/MET Beamline Scientist, Soft X-ray Scattering & Spectroscopy Program, National Synchrotron Light Source II

Christopher Homes

Brookhaven National Laboratory

National Synchrotron Light Source II
Bldg. 741, Room 1L101
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-7579
homes@bnl.gov

Within the SXSS group, my area is primarily infrared spectroscopy and optical design, but from a practical standpoint this covers the terahertz through to the visible and ultraviolet regions, using conventional and synchrotron light sources.  Using a technique that I developed to obtain the absolute reflectivity of small, irregular samples, the complex optical properties are obtained.  My early work was on synthetic metals and quasicrystals; later work focused on the high-temperature superconductors, identifying the c-axis pseudogap and a universal scaling relation.  The present line of investigation is broadly described as work on correlated electron systems, with special attention on emergent properties such as superconductivity in the copper-oxide and iron-based materials, as well as the Dirac and Weyl semimetals.

Expertise | Education | Publications | Awards

Expertise

  • Infrared spectroscopy and reflectivity measurements
  • Detection of infrared radiation (bolometers, photoconductors, etc.)
  • Density functional theory for the determination of the lattice vibrations and optical conductivity

Education

  • Ph.D. 1990: Physics, University of British Columbia
  • M.Sc. 1986: Physics, University of British Columbia
  • B.Sc. (Hons) 1983: Physics, McMaster University

  COMMITTEES

  NSERC Section Chair: Quantum Condensed Matter Physics

Selected Publications

  • Homes CC, Wang Z-C, Fruhling K, Tafti F (2023) Optical properties and carrier localization in the layered phosphide EuCd2P2. Physical Review B 107. https://doi.org/10.1103/physrevb.107.045106
  • Dordevic SV, Homes CC (2022) Superfluid density in overdoped cuprates: Thin films versus bulk samples. Physical Review B 105. https://doi.org/10.1103/physrevb.105.214514
  • Homes CC (2021) Giant Polarization in Nanodielectrics: (Invited Paper). 2021 IEEE 16th Nanotechnology Materials and Devices Conference (NMDC). https://doi.org/10.1109/nmdc50713.2021.9677542
  • Homes CC, Wolf T, Meingast C (2020) Anisotropic optical properties of detwinned BaFe2As2. Physical Review B 102. https://doi.org/10.1103/physrevb.102.155135
  • Homes CC, Du Q, Petrovic C, Brito WH, Choi S, Kotliar G (2018) Unusual electronic and vibrational properties in the colossal thermopower material FeSb2. Scientific Reports. doi: 10.1038/s41598-018-29909-2
  • Akrap A, Hakl M, Tchoumakov S, Crassee I, Kuba J, Goerbig MO, Homes CC, Caha O, Novák J, Teppe F, Desrat W, Koohpayeh S, Wu L, Armitage NP, Nateprov A, Arushanov E, Gibson QD, Cava RJ, van der Marel D, Piot BA, Faugeras C, Martinez G, Potemski M, Orlita M (2016) Magneto-Optical Signature of Massless Kane Electrons inCd3As2. Physical Review Letters. doi: 10.1103/physrevlett.117.136401
  • Homes CC, Ali MN, Cava RJ (2015) Optical properties of the perfectly compensated semimetalWTe2. Physical Review B 92. doi: 10.1103/physrevb.92.161109
  • Homes CC, Dordevic SV, Strongin M, Bonn DA, Liang R, Hardy WN, Komiya S, Ando Y, Yu G, Kaneko N, Zhao X, Greven M, Basov DN, Timusk T (2004) A universal scaling relation in high-temperature superconductors. Nature 430:539–541. doi: 10.1038/nature02673
  • Michaelian KH, Jackson RS, Homes CC (2001) Synchrotron infrared photoacoustic spectroscopy. Review of Scientific Instruments 72:4331–4336. doi: 10.1063/1.1416107
  • Homes CC, Vogt T, Shapiro SM, Wakimoto S, Ramirez AP (2001) Optical Response of High-Dielectric-Constant Perovskite-Related Oxide. Science 293:673–676. doi: 10.1126/science.1061655
  • Homes CC, Timusk T, Liang R, Bonn DA, Hardy WN (1993) Optical conductivity ofcaxis orientedYBa2Cu3O6.70: Evidence for a pseudogap. Physical Review Letters 71:1645–1648. doi: 10.1103/physrevlett.71.1645
  • Homes CC, Reedyk M, Cradles DA, Timusk T (1993) Technique for measuring the reflectance of irregular, submillimeter-sized samples. Applied Optics 32:2976. doi: 10.1364/ao.32.002976
  • Homes CC, Timusk T, Wu X, Altounian Z, Sahnoune A, Ström-Olsen JO (1991) Optical conductivity of the stable icosahedral quasicrystal Al63.5Cu24.5Fe12. Physical Review Letters 67:2694–2696. doi: 10.1103/physrevlett.67.2694

Awards & Recognition

  • Outstanding Referee, American Physical Society, 2022
  • Fellow, American Physical Society, 2008
  • Brookhaven Science and Technology Award, 2007
Christopher Homes

Brookhaven National Laboratory

National Synchrotron Light Source II
Bldg. 741, Room 1L101
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-7579
homes@bnl.gov

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