Articles

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Classical Fano Oscillator, Physical Review B (2011)

Starting from the quantum-mechanical Fano-Anderson Hamiltonian, we derive classical equations of motion for coordinates associated...

 

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Core-Level Spectroscopy of the Pd/W(110) Interface: Evidence of Long-Range Pd-Island—WInteractions at Submonolayer Coverages (with N. D. Shinn, B. Kim, K. J. Kim, and T. H. Kang), Surface Science (2009)

We have measured W 4f7/2 core-level photoemission spectra from W(1 1 0) in the presence...

 

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Core-Level Shifts at the Pt/W(110) Monolayer Bimetallic Interface (with N. D. Shinn, B. Kim, K. J. Kim, and T. H. Kang), Surface Science (2009)

We have measured W and Pt 4f7/2 core-level photoemission spectra from interfaces formed by ultrathin...

 

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Core-Level Spectroscopy of the Ni/W(110) Interface: Correlation of W Interfacial Core LevelShifts with First-Layer Ni Phases (with R. T. Franckowiak, N. D. Shinn, B. Kim, K. J. Kim, and T. H. Kang), Surface Science (2008)

We have measured W 4f7/2 core-level photoemission spectra from W(1 1 0) in the presence...

 

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Coherent Excitation of the Optic Phonon in Si: Transiently Stimulated Raman Scattering with aFinite-Lifetime Electronic Excitation (with A. J. Sabbah), Physical Review B (2007)

Using 28-fs, 800-nm laser pulses we have coherently excited and subsequently probed, with time-dependent reflectivity,...

 

Carrier and Coherent Lattice Dynamics of Si Probed with Ultrafast Spectroscopy (with A. J. Sabbah), AIP Conference Proceedings (2004)
 

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Surface Core-Level Phonon Broadening of Li(110) (with G. K. Wertheim), Physical Review B (2000)

High-resolution core-level photoemission data from the 1s level of Li(110) have been obtained between 77...

 

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Measurement of Silicon Surface Recombination Velocity Using Ultrafast Pump-Probe Reflectivityin the Near Infrared (with A. J. Sabbah), Journal of Applied Physics (2000)

We demonstrate that ultrafast pump–probe reflectivity measurements from bulk Si samples using a Ti:sapphire femtosecond...

 

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Submonolayer Oxidation of W(110): A High-Resolution Core-Level Photoemission Study (with G. K. Wertheim), Surface Science (1998)

We have measured high-resolution core-level photoemission spectra from W(110) in the presence of submonolayer O...

 

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A Compact Rotating-Mirror Autocorrelator Design for Femtosecond and Picosecond LaserPulses (with A. J. Sabbah), Review of Scientific Instruments (1998)

An interferometric rapid-scanning autocorrelator employing two antiparallel rotating mirrors in a variable arm is optimized...

 

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Thermally Induced Core-Electron Binding-Energy Shifts in Transition Metals: An ExperimentalInvestigation of Ta(100) (with B. Kim, W. Hale, and J. L. Erskine), Physical Review B (1996)

High-resolution photoemission spectra from the 4f7/2 levels of Ta(100) have been obtained between 77 K...

 

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Evidence for Crystal-Field Splitting in Surface-Atom Photoemission from Potassium (with G. K. Wertheim), Physical Review B (1995)

Photoemission spectra from the shallow 3p3/2 core levels of the surface atoms of metallic potassium...

 

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Conduction-Electron Screening in the Bulk and at Low-Index Surfaces of Ta Metal (with W. Hale, B. Kim, and J. L. Erskine), Physical Review B (1995)

High-resolution core-level photoemission spectra from Ta(100) have been measured. The well-resolved peak from the first...

 

Origin of Anomalies in Photoemission from the Conduction Band of Potassium (with G. K. Wertheim), Solid State Communications (1995)
 

Time-Resolved Thermionic Electron Emission and Nonthermal Ion Emission from Au Excited by Intense fs Pulses (with X. Y. Wang, Y. S. Lee, and M. C. Downer), Ultrafast Phenomena IX (1995)
 

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Surface Core-Level Shifts and Atomic Coordination at a Stepped W(110) Surface (with B. Kim, J. L. Erskine, and N. D. Shinn), Physical Review B (1994)

Core-level 4f7/2 photoemission spectra have been measured from a single, bifacial W crystal, which has...

 

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Time-Resolved Electron Temperature Measurement in a Highly-Excited Gold Target UsingFemtosecond Thermionic Emission (with W. Y. Wang, Y. S. Lee, and M. C. Downer), Physical Review B (1994)

We report direct measurement of hot-electron temperatures and relaxation dynamics for peak electron temperatures between...

 

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Surface Core-Level Shifts of Ta(110) and W(110) vs. Alkali-Atom Coverage: Implications for theAlkali-Substrate Interaction (with A. B. Andrews and G. K. Wertheim), Physical Review B (1994)

The change in the average surface-atom core-level shift (SCS) produced by submonolayer coverages of alkali...

 

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Nature of the Charge Localized Between Alkali Adatoms and Metal Substrates (with G. K. Wertheim and P. H. Citrin), Physical Review B (1994)

Two previously unappreciated features in photoemission spectra from alkali atoms adsorbed on W(110), namely, the...

 

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Anharmonic Surface Vibrations in Photoemission from Alkali Metals (with G. K. Wertheim and P. H. Citrin), Physical Review B (1994)

The phonon widths of outermost core-electron photoemission spectra from (110)-oriented overlayers of Na, K, and...

 

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Photoemission Measurement of Equilibrium Segregation at GeSi Surfaces (with J. E. Rowe, G. K. Wertheim, and J. C. Bean), Journal of Applied Physics (1994)

Photoemission spectroscopy is used to demonstrate that Ge segregates to the first atomic layer of...

 

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CO Layers on W(100) by Infrared Spectroscopy (with A. J. Sievers), Surface Science (1993)

The internal stretch of on-top-bonded CO on W(100) is monitored as a function of exposure...

 

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Ta(110) Surface and Subsurface Core-level Shifts and 4f7/2 Lineshapes (with G. K. Wertheim), Physical Review B (1993)

High-resolution 4f core-level spectra of the Ta(110) surface region have been obtained at 80 and...

 

Femtosecond Thermionic Emission in the Space-Charge Limited Regime (with X. Y. Wang, M. C. Downer, D. L. Fisher, T. Tajima, and J. L. Erskine), Journal of the Optical Society of America B (1993)
 

Femtosecond Thermionic Emission: Experiment, Analytic Theory, and Particle Simulations (with M. C. Downer, X. Y. Wang, J. L. Erskine, D. L. Fisher, T. Tajima, and R. M. More), Ultrafast Phenomena VIII (1993)
 

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Properties of Condensed Matter under Planetary Interior Conditions Measured by FemtosecondSpectroscopy (with M. C. Downer, H. Ahn, D. H. Reitze, and X. Y. Wang), Laser Interactionswith Atoms, Solids, and Plasmas (1993)
 

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Electron Mean-Free Paths in the Alkali Metals (with G. K. Wertheim, N. V. Smith, and P. H. Citrin), Physical Review B (1992)

Photoemission data in which the signal from the first atomic layer is well resolved from...

 

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Bulk and Surface Singularity Indices in the Alkali Metals (with G. K. Wertheim and P. H. Citrin), Physical Review B (1992)

Photoemission data from (110) films of Li, Na, and Rb, in which the signal from...

 

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Thermal and Surface Core-Electron Binding-Energy Shifts in Metals (with G. K. Wertheim, D. N. E. Buchanan, and P. H. Citrin), Physical Review B (1992)

High-resolution photoemission spectra from the shallow core levels of alkali metals and of In have...

 

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Coverage Dependence of K adsorption on Si(100)—2× 1 by Core-Level Photoemission (with G. K. Wertheim, P. H. Citrin, and J. E. Rowe), Physical Review B (1992)

Using core-level photoemission, a coverage-dependent transition in the adsorption of K on Si(100)2×1 is observed....

 

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Crystal Field Splitting and Charge Flow in the Buckled-Dimer Reconstruction of Si(100)—2× 1 (with G. K. Wertheim, J. E. Rowe, and P. H. Citrin), Physical Review Letters (1991)

The effect of the 2×1 reconstruction on the core-electron binding energies of the outermost Si(100)...

 

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Enhanced Vibrational Broadening of Core-Level Photoemission from the Surface of Na(110) (with G. K. Wertheim and P. H. Citrin), Physical Review Letters (1991)

High-resolution temperature-dependent photoemission data from Na 2p core levels reveal substantially larger phonon broadening in...

 

Silicon (2p) Surface Core-Level Line Shape of Si(111)—B (with J. E. Rowe and G. K. Wertheim), Journal of Vacuum Science & Technology A (1991)
 

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Chemical and Reconstruction Induced Surface Core-Level Shifts: H on Low-Index W Surfaces (with G. K. Wertheim and P. H. Citrin), Physical Review B (1990)

The H-induced shift of the surface-atom core-level binding energy in W(110) is shown to arise...

 

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Hydrogen Adsorption on the β N-Covered W(100) Surface: An Infrared Study of the W–HStretch (with A. J. Sievers), Physical Review B (1990)

The adsorption of hydrogen on the c(2×2) β-N-covered W(100) surface has been studied with infrared...

 

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Alkali Metal Adsorbates on W(110): Ionic, Covalent, or Metallic? (with G. K. Wertheim and P. H. Citrin), Physical Review Letters (1990)

The photoemission signal from the first atomic layer of W(110) is used to assess the...

 

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Different Core-Hole Lifetime and Screening in the Surface of W(110) (with G. K. Wertheim and P. H. Citrin), Physical Review Letters (1989)

High-resolution 4f photoemission spectra from clean W(110) show that the natural lifetime width and the...

 

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Infrared Reflection-Absorption Spectroscopy of W(100)—H at 100 K (with A. J. Sievers), Surface Science (1989)

Using infrared reflection-absorption spectroscopy in conjunction with the broad-band technique of Fourier-transform interierometry, changes m...

 

Hemispherical Emissivity of V, Nb, Ta, Mo, and W from 300 to 1000 K (with S. X. Cheng, P. Cebe, L. M. Hanssen, and A. J. Sievers), Journal of the Optical Society of America (1987)
 

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Infrared Observation of Adsorbate Induced Changes in Free Carrier Surface Scattering (with L. M. Hanssen and A. J. Sievers), Surface Science (1986)
 

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Surface-Reconstruction-Induced Changes in Free-Carrier Scattering from the W(100) Surface: AnInfrared Surface-Electromagnetic-Wave Study (with L. M. Hanssen and A. J. Sievers), Physical Review B (1986)

Using the infrared-absorption technique of surface-electromagnetic-wave spectroscopy (SEWS) we have studied the effects of H2...