Zobrazeno 1 - 10
of 34
pro vyhledávání: '"M. Primke"'
Autor:
B. Wolf, M. Primke, A. Gröger, H. Herrnberger, Wolfgang Grill, E. Schönherr, H. Wendel, P. Wyder, J. Lenzner, P. Keppler, J. Heil, K. U. Würz, H. Bender, A. Böhm, S. Knauth, Janos Major
Publikováno v:
Physics Reports. 323:387-455
Partly ballistic propagation of carriers and phonons in single crystals of the metals Ag and W and the semimetal Bi is studied in real space. The carriers are excited by heating a small surface area of the sample by illumination or electron beam irra
Publikováno v:
Physical Review B. 60:2468-2475
Ballistic carrier transport is studied in real space in tungsten single crystals using carrier excitation by laser light. So-called electron focusing caustics, singularities of the carrier flux in specific directions, have been investigated systemati
Publikováno v:
Physical Review Letters. 79:4882-4885
We report on the two-dimensional observation of electron focusing under the influence of a longitudinal magnetic field ${B}_{l}$ using a real space imaging technique. As a function of ${B}_{l}$ the focusing patterns are modified and shrink together i
Publikováno v:
Physical Review B. 56:R15581-R15584
A technique for studying conduction electron/interface interactions is used to study reflection and refraction of an electron beam at a Bi intercrystalline boundary. The technique involves scanning a small laser spot over the surface of a bicrystal,
Publikováno v:
Review of Scientific Instruments. 67:307-311
A simple design for a mechanically driven three‐dimensional cryogenic micropositioner is presented. The design is based on a parallelogram structure constructed from leaf springs and wires. Actuation is achieved by the elastic deformation of the pa
Publikováno v:
Physical Review Letters. 74:146-149
Carriers and phonons are excited in a small volume at the surface of a Bi single crystal by laser illumination. Their nearly ballistic propagation through the sample is studied at low temperature by real space imaging of the potential at the sample s
Publikováno v:
Physik Journal. 53:877-879
Durch die Unterdruckung von Streuprozessen in Festkorpern werden ausgepragte Anisotropien beim Transport von Ladungstragern sichtbar, die — einem Fingerabdruck ahnlich — charakteristisch fur die jeweilige Fermi-Flache sind. Diese Anisotropien wur
Autor:
R. Janowsky, M. Primke
Publikováno v:
Chemie Ingenieur Technik. 81:1039-1040
Publikováno v:
Physical review. B, Condensed matter. 54(4)
The nearly ballistic propagation of electrons in Ag and of holes in W is investigated in real space. The carriers are excited by the illumination of a small area on one surface of the sample, and are detected on the opposite side by a Cu point contac
Publikováno v:
Chemie Ingenieur Technik. 80:1378-1378