Double Stern-Gerlach experiments on Mn@Sn12: Refocusing of a paramagnetic superatom

Thomas M. Fuchs and Rolf Schäfer
Phys. Rev. A 98, 063411 – Published 11 December 2018

Abstract

We report magnetic double deflection experiments on cryogenically cooled Mn@Sn12 clusters. Refocusing efficiencies of up to 90% are achieved by keeping the magnetic-flux density virtually constant between the two Stern-Gerlach magnets. The spin dynamics are probed by introducing magnetic-flux density variations along the molecular-beam path. We apply a microscopic model for the interpretation of our results taking the coupling of electronic spin and rotational degrees of freedom into account. The combination of our experimental and theoretical results reveals unexpected insights into the interplay between rotation and spin dynamics of small metal clusters depending on magnetic-field modulations.

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  • Received 28 September 2018

DOI:https://doi.org/10.1103/PhysRevA.98.063411

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsGeneral PhysicsParticles & FieldsAccelerators & BeamsAtomic, Molecular & Optical

Authors & Affiliations

Thomas M. Fuchs* and Rolf Schäfer

  • Eduard-Zintl-Institut für Physikalische und Anorganische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, 64287 Darmstadt, Germany

  • *fuchs@cluster.pc.chemie.tu-darmstadt.de

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Issue

Vol. 98, Iss. 6 — December 2018

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