Experimental Evidence for Magnetic Field Effects on Dielectronic Recombination via High Rydberg States

Journal Article · Sat May 01 04:00:00 EDT 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.82.3779· OSTI ID:365853

Bartsch, T; Schippers, S; Mueller, A; Brandau, C ^[1]; Gwinner, G; Saghiri, A A; Beutelspacher, M; Grieser, M; Schwalm, D; Wolf, A ^[2]; Danared, H ^[3]; Dunn, G H ^[4]

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1. Institut fuer Kernphysik, Universitaet Giessen, 35392 Giessen (Germany)
2. Max-Planck-Institut fuer Kernphysik and Physikalisches Institut der Universitaet Heidelberg, 69117 Heidelberg (Germany)
3. Manne Siegbahn Laboratory, Stockholm University, 10405 Stockholm (Sweden)
4. JILA, University of Colorado, Boulder, Colorado 80309-0440 (United States)

We report the first experimental observation of magnetic field effects on dielectronic recombination (DR) via highly excited Rydberg levels. Crossed static electric and magnetic fields E{sub y} and B{sub z} were imposed on the collision region in high resolution DR measurements with Li-like Cl{sup 14+} ions at the heavy ion storage ring TSR in Heidelberg. Enhancement of DR rate coefficients {alpha} for the group of high Rydberg states attached to the 2p{sub 1/2} and 2p{sub 3/2} series limits was observed when motional electric fields E{sub y} up to 380thinspthinspV/cm were introduced. The associated enhancement rate d{alpha}/dE{sub y} which we found to be constant at least for E{sub y}{le}100 V/cm decreased by almost a factor of 2 when the longitudinal field B{sub z} was increased from 20 to 69thinspthinspmT. {copyright} {ital 1999} {ital The American Physical Society}

• DOE Contract Number: AI02-95ER54293
• OSTI ID: 365853
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CATIONS
CHLORINE
ELECTRIC FIELDS
ELECTRON-ION COLLISIONS
MAGNETIC FIELDS
RECOMBINATION
RYDBERG STATES