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Title: Magnetic-Field Induced Enhancement in the Fluorescence Yield Spectrum of Doubly Excited States in Helium

Abstract

An influence of static magnetic fields on the fluorescence yield spectrum of He in the vicinity of the N=2 thresholds has been observed. The experimental results are in excellent agreement with predictions based on multichannel quantum defect theory, and it is demonstrated that the Rydberg electron l mixing due to the diamagnetic interaction is essential for the description of the observed fluorescence yield intensity enhancement.

Authors:
; ; ;  [1];  [1];  [2];  [3];  [4];  [5];  [6];  [4];  [7];  [8]
  1. Department of Physics, Uppsala University, Box 530, S-75121 Uppsala (Sweden)
  2. (Germany)
  3. Dipartimento di Chimica, Universita di Roma La Sapienza and INSTM Unit, Piazzale Aldo Moro 5, I-00185 Rome (Italy)
  4. (Italy)
  5. Sincrotrone Trieste, I-34012 Trieste (Italy)
  6. Istituto per lo Studio dei Materiali Nanostrutturati, CNR, Sezione Roma 1, Piazzale Aldo Moro 5, I-00185 Rome (Italy)
  7. Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008-5151 (United States)
  8. Department of Physics, Auburn University, Auburn, Alabama 36849 (United States)
Publication Date:
OSTI Identifier:
20861519
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 97; Journal Issue: 25; Other Information: DOI: 10.1103/PhysRevLett.97.253002; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRONS; FLUORESCENCE; HELIUM; MAGNETIC FIELDS; RYDBERG STATES

Citation Formats

Stroem, Magnus, Saathe, Conny, Agaaker, Marcus, Soederstroem, Johan, Rubensson, Jan-Erik, BESSY, Albert-Einstein Strasse 15, D-12489 Berlin, Stranges, Stefano, Istituto per lo Studio dei Materiali Nanostrutturati, CNR, Sezione Roma 1, Piazzale Aldo Moro 5, I-00185 Rome, Richter, Robert, Alagia, Michele, TASC-CNR, Area Science Park, Basovizza, I-34012 Trieste, Gorczyca, T. W., and Robicheaux, F.. Magnetic-Field Induced Enhancement in the Fluorescence Yield Spectrum of Doubly Excited States in Helium. United States: N. p., 2006. Web. doi:10.1103/PHYSREVLETT.97.253002.
Stroem, Magnus, Saathe, Conny, Agaaker, Marcus, Soederstroem, Johan, Rubensson, Jan-Erik, BESSY, Albert-Einstein Strasse 15, D-12489 Berlin, Stranges, Stefano, Istituto per lo Studio dei Materiali Nanostrutturati, CNR, Sezione Roma 1, Piazzale Aldo Moro 5, I-00185 Rome, Richter, Robert, Alagia, Michele, TASC-CNR, Area Science Park, Basovizza, I-34012 Trieste, Gorczyca, T. W., & Robicheaux, F.. Magnetic-Field Induced Enhancement in the Fluorescence Yield Spectrum of Doubly Excited States in Helium. United States. doi:10.1103/PHYSREVLETT.97.253002.
Stroem, Magnus, Saathe, Conny, Agaaker, Marcus, Soederstroem, Johan, Rubensson, Jan-Erik, BESSY, Albert-Einstein Strasse 15, D-12489 Berlin, Stranges, Stefano, Istituto per lo Studio dei Materiali Nanostrutturati, CNR, Sezione Roma 1, Piazzale Aldo Moro 5, I-00185 Rome, Richter, Robert, Alagia, Michele, TASC-CNR, Area Science Park, Basovizza, I-34012 Trieste, Gorczyca, T. W., and Robicheaux, F.. Fri . "Magnetic-Field Induced Enhancement in the Fluorescence Yield Spectrum of Doubly Excited States in Helium". United States. doi:10.1103/PHYSREVLETT.97.253002.
@article{osti_20861519,
title = {Magnetic-Field Induced Enhancement in the Fluorescence Yield Spectrum of Doubly Excited States in Helium},
author = {Stroem, Magnus and Saathe, Conny and Agaaker, Marcus and Soederstroem, Johan and Rubensson, Jan-Erik and BESSY, Albert-Einstein Strasse 15, D-12489 Berlin and Stranges, Stefano and Istituto per lo Studio dei Materiali Nanostrutturati, CNR, Sezione Roma 1, Piazzale Aldo Moro 5, I-00185 Rome and Richter, Robert and Alagia, Michele and TASC-CNR, Area Science Park, Basovizza, I-34012 Trieste and Gorczyca, T. W. and Robicheaux, F.},
abstractNote = {An influence of static magnetic fields on the fluorescence yield spectrum of He in the vicinity of the N=2 thresholds has been observed. The experimental results are in excellent agreement with predictions based on multichannel quantum defect theory, and it is demonstrated that the Rydberg electron l mixing due to the diamagnetic interaction is essential for the description of the observed fluorescence yield intensity enhancement.},
doi = {10.1103/PHYSREVLETT.97.253002},
journal = {Physical Review Letters},
number = 25,
volume = 97,
place = {United States},
year = {Fri Dec 22 00:00:00 EST 2006},
month = {Fri Dec 22 00:00:00 EST 2006}
}