Stueckelberg oscillations in nonadiabatic spin transitions of an electron spin-polarized {sup 4}He{sup +} ion beam

Journal Article · Fri Oct 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.042709· OSTI ID:21456981

Suzuki, T T; Yamauchi, Y ^[1]

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1. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)

We investigated the nonadiabatic transition of an electron spin-polarized {sup 4}He{sup +} ion beam in the energy range of 0.2-2 keV. We successfully evaluated the spin polarization of the He{sup +} ion beam passing through a solenoid coil by measuring the elastically scattered ion intensity from the magnetized Fe(100) target. We observed that the beam polarization exhibited sinusoidal magnetic oscillation after passing through the coil. Furthermore, the beam polarization almost completely reversed with single periodicity in this oscillation. By comparison with the theory of the double-passage nonadiabatic transition, we concluded that this oscillation corresponds to the Stueckelberg oscillation in beam polarization. Thus, we propose that the quantum interference between the nonadiabatic transitions using a single solenoid coil acts as an effective spin flipper.

• OSTI ID: 21456981
• Journal Information: Physical Review. A, Vol. 82, Issue 4; Other Information: DOI: 10.1103/PhysRevA.82.042709; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
74 ATOMIC AND MOLECULAR PHYSICS
COMPARATIVE EVALUATIONS
CRYSTAL STRUCTURE
ELECTRONS
ENERGY DEPENDENCE
HELIUM IONS
INTERFERENCE
ION BEAMS
ION-ATOM COLLISIONS
IRON
KEV RANGE
MAGNET COILS
MAGNETIC FIELDS
OSCILLATIONS
PERIODICITY
POLARIZATION
POLARIZED BEAMS
SOLENOIDS
SPIN
SPIN FLIP
SPIN ORIENTATION
ANGULAR MOMENTUM
ATOM COLLISIONS
BEAMS
CHARGED PARTICLES
COLLISIONS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EQUIPMENT
EVALUATION
FERMIONS
ION COLLISIONS
IONS
LEPTONS
METALS
ORIENTATION
PARTICLE PROPERTIES
TRANSITION ELEMENTS
VARIATIONS