Research Overview

Our research group studies structural, electronic, magnetic, and vibrational properties of bulk materials, surfaces and thin films.  We use a broad range of experimental methods including electron spectroscopy, elastic and inelastic electron scattering, and optical techniques including microscopy and polarimetry based on the magneto-optic Kerr effect.  We also use synchrotron radiation, primarily for photoemission spectroscopy.

Selected Papers

(Reference numbers  refer to PI's publications).

· Early Work on Linear and Circular Magnetic Dichroism
        core levels in magnetic metals (refs. 8,10,11)
 

· Synchrotron Radiation/Photoemission Studies of:
        bulk electronic properties/ferromagnets (refs. 20, 32, 94)
        surface states on magnetic metals (refs. 17, 21, 31, 89)
        electronic structure/epitaxial magnetic films (refs. (40, 48, 90)
        spin-polarized electron studies (refs. 87, 96, 98)
        core-level shifts (refs. 113, 116, 117)
        hydrogen/Nb surface interactions (refs. 76, 79)
        finite temperature magnetism/exchange (refs. 87, 94)
        surface magnetism Gd (ref. 99)
        layer-dependent electronic structure (refs. 86, 96, 115)
 

· Inelastic Electron Scattering/Surface Lattice Dynamics:
        structure analysis based on surface vibrations (refs. 36, 38, 39)
        metal surface/H interactions (refs. 41, 58, 66)
        vibrational resonances/scattering (refs. 45, 57)
        detection of shear surface modes (ref. 78)
        reviews inelastic scattering/lattice dynamics (refs. 59, 128)
        scattering mechanisms (refs. 27, 45, 57)
 

· Surface Chemistry/Adsorption:
     orientation of methoxy on Ni(111) (ref. 15)
     photoemission/Xenon (refs. 18, 51, 61)
     nitrogen states on W(100) (ref. 72)
 

· Fast Laser Pulse Photoemission (refs. 79, 80, 88, 101, 104, 105)
 

· Thin Magnetic Films/Magneto-optic Kerr Effect
            spin-polarized photoemission dilemma (ref. 4)
            critical exponents/anisotropy (refs. 68, 74, 77, 93)
            dead layers/search for surface magnetism (refs. 82, 92)
            surface step induced anisotropy (refs. 97, 100)
            review (ref. 110)
            hysteresis dynamics (refs. 119, 121, 123)
            enhanced moments/ultrathin films (ref. 109)
 

· Surface Structure Analysis
            order-disorder transition W(100) c(2x2) (ref. 114)
            photoelectron diffraction W(110) (ref. 103)
            LEED crystallography Rh(001) and H/Rh(001) (ref. 122)
            LEED crystallography W(110)/surface roughness (ref. 124)
 

· Instrumentation Papers
            angle-resolving analyzer/photoemission (refs. 19, 30)
            multichannel detection/electron optics (refs. 37, 70)
            synchrotron monochromators (refs. 43, 61, 73, 106)
            Kerr effect instrument (ref. 74)
            spin detection/Mott polarimeter (ref. 108)
            tiime-of-flight photoemission/channel plate response (ref. 88)
            high-speed Kerr polarimeter/microscope (ref. 127)
            high-resolution LEED (ref. 102)
            electron energy analyzers (refs. 47, 111)