Zobrazeno 1 - 10
of 38
pro vyhledávání: '"M.P. Ray"'
Publikováno v:
Surface Science. 635:37-43
We present energy- and charge-resolved measurements of low and hyperthermal energy Na+ ions scattered from a Ag(001) surface. With the primary ion beam oriented along the [110] crystal direction, distinct peaks in the energy distributions of the scat
Autor:
M. Zalalutdinov, Douglas M. Photiadis, Jeffrey W. Baldwin, Brian H. Houston, M.P. Ray, Jeremy T. Robinson, Bradford B. Pate, Tatyana Feygelson, J. E. Butler
Publikováno v:
Nano Letters. 11:4304-4308
We present the first nanomechanical resonators microfabricated in single-crystal diamond. Shell-type resonators only 70 nm thick, the thinnest single crystal diamond structures produced to date, demonstrate a high-quality factor (Q ≈ 1000 at room t
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 27:1024-1028
The study of hot electron excitation at surfaces requires the deposition of ultrathin metal films. To probe the role of particle bombardment in such film excitations, homogeneous, atomically ordered, and relatively defect free thin films must be depo
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 267:615-619
We have investigated the scattering of K+ and Cs+ ions from a single crystal Ag(0 0 1) surface and from a Ag–Si(1 0 0) Schottky diode structure. For the K+ ions, incident energies of 25 eV to 1 keV were used to obtain energy-resolved spectra of sca
Autor:
Gilbert G. Lonzarich, M.P. Ray, Yoshiteru Maeno, Andrew P. Mackenzie, Toshizo Fujita, G.J. McMullan, A.J. Diver, S. Nishizaki, Stephen Julian
Publikováno v:
Physical Review Letters. 76:3786-3789
We report a comprehensive study of magneto-oscillatory phenomena in the normal state of S${\mathrm{r}}_{2}$Ru${\mathrm{O}}_{4}$, the first layered perovskite superconductor $({T}_{c}\ensuremath{\cong}1\mathrm{K})$ not based on copper. The form of the
Autor:
Ole Hansen, Lasse Bjørchmar Thomsen, G Nielson, Chad Sosolik, Russell E. Lake, M.P. Ray, Ib Chorkendorff
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 22(8)
We have made Na (+) and He (+) ions incident on the surface of solid state tunnel junctions and measured the energy loss due to atomic displacement and electronic excitations. Each tunnel junction consists of an ultrathin film metal-oxide-semiconduct
Autor:
Gunver Nielsen, Ib Chorkendorff, Lasse Bjørchmar Thomsen, Russell E. Lake, Ole Hansen, Chad Sosolik, M.P. Ray
Publikováno v:
Ray, M P, Lake, R E, Sosolik, C E, Thomsen, L B, Nielsen, G, Chorkendorff, I & Hansen, O 2009, ' Subsurface excitations in a metal ', Physical Review B Condensed Matter, vol. 80, no. 16, pp. 161405 . https://doi.org/10.1103/PhysRevB.80.161405
We investigate internal hot carrier excitations in a Au thin film bombarded by hyperthermal and low energy alkali and noble gas ions. Excitations within the thin film of a metal-oxide-semiconductor device are measured revealing that ions whose veloci
Publikováno v:
Physical Review B. 79
We have measured the in-plane scattered distributions of ${\text{K}}^{+}$ ions incident on a Ag(001) surface with energies from 9 to 100 eV. Energy- and angle-resolved spectra of the scattered flux show multiple peaks distinctly separated in energy c
Publikováno v:
Physica B: Condensed Matter. :529-531
We compare the normal state Fermi surface of Sr2RuO4 as inferred from a recent magneto-oscillatory study with the predictions of local spin density electronic band structure calculations and find good agreement between the observed and calculated top
Publikováno v:
Review of Scientific Instruments. 79:013703
We demonstrate that scanning tunneling microscope tip-surface crash events can be utilized as an efficient means for the creation of predefined island configurations for diffusion studies. Using this method, islands of varying size can be created and