Decelerated molecular beams for high-resolution spectroscopy

Autor: Gerard Meijer, A.J.A. van Roij, Jochen Küpper, Boris G. Sartakov, J. van Veldhoven, Hendrick L. Bethlem

Publikováno v: The European Physical Journal D. 31:337-349

Ultimately, the resolution of any spectroscopic experiment is limited by the interaction time between the particles that are to be examined and the measuring device. The obtainable spectroscopic resolution in a molecular beam experiment can be consid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9eac6a6c1032841843018c4045df4492
https://doi.org/10.1140/epjd/e2004-00160-9

Direct Observation of Friedel Oscillations around Incorporated SiGaDopants in GaAs by Low-Temperature Scanning Tunneling Microscopy

Autor: H. van Kempen, A.J.A. van Roij, M. C. M. M. van der Wielen

Publikováno v: Physical Review Letters. 76:1075-1078

We report the direct imaging of electrically active Si dopants near the GaAs(110) surface with a scanning tunneling microscope at a temperature of 4.2 K. In the filled state images, we observe patterns of rings which are centered around the individua

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0977bee813b5a65b9df135f4a8f44d3d
https://doi.org/10.1103/physrevlett.76.1075

Trapping neutral molecules in a traveling potential well

Autor: Hendrick L. Bethlem, Gerard Meijer, A.J.A. van Roij, Giel Berden, Floris M. H. Crompvoets

Publikováno v: Physical Review Letters, 84, 5744-5747
Physical Review Letters
ResearcherID
Physical Review Letters, 84, 25, pp. 5744-5747

A series of pulsed electric fields can be arranged such that it creates a traveling potential well in which neutral dipolar molecules can be confined. This provides a method to transport, to decelerate, and to cool a sample of neutral molecules while

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f2d323ad46affb24c2d19e82e1d3017
https://doi.org/10.1103/PhysRevLett.84.5744

Semiconductor band switching by charging a small grain with a single electron

Autor: A.J.A. van Roij, H. van Kempen, C. J. P. M. Harmans, J. W. G. Wildöer

Publikováno v: Physical Review B-Condensed Matter and Materials Physics, 53 (16)
Physical Review. B, Condensed Matter, 53, 10695-10698. American physical soc
Physical Review. B, Condensed Matter, 53, 16, pp. 10695-10698

We observe a very abrupt change in the electron density in scanning tunneling microscope measurements on an InAs~110! surface in the vicinity of a small conductive grain. The observed features are a consequence of charge quantization on the grain, wh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcb36b85b9a6f31638eb0bd98c3f19bf
http://resolver.tudelft.nl/uuid:4b08ffa9-d283-4302-abc3-c4d5e9918150

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