Phonon-Induced Spin Flip in Extremely Thin Superconducting Al Tunneling Junctions in High Magnetic Fields

Journal Article · Sun Sep 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.2546· OSTI ID:383896

Lang, J; Eisenmenger, W ^[1]; Fulde, P ^[2]

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1. 1. Physikalisches Institut, Universitaet Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart (Germany)
2. Max-Planck-Institut fuer Physik Komplexer Systeme, Bayreuther Strasse 40, D-01187 Dresden (Germany)

Superconducting Al tunneling junctions of film thicknesses of about 30A were used as phonon generators and detectors in parallel magnetic fields up to 5T. These extremely thin tunneling junctions show Zeeman splitting of the energy gap according to the splitting of states with parallel and antiparallel spin. From the dependence of the detection signal on the magnetic field in phonon spectroscopy and phonon pulse measurements it is concluded that quasiparticle-phonon transitions can be accompanied by a spin flip. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 383896
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALUMINIUM
IV CHARACTERISTIC
MAGNETIC FIELDS
PHONONS
RECOMBINATION
SPIN FLIP
SUPERCONDUCTING JUNCTIONS
ZEEMAN EFFECT