Issue 25, 2020

Quantum-assisted diamagnetic deflection of molecules


We measure the diamagnetic deflection of anthracene and adamantane in a long-baseline matter-wave interferometer. From the nanometer-level deflection we extract the magnetic susceptibilities of the molecules which we compare with calculations and previous results. Adamantane yields an isotropic average mass susceptibility of −8.0 ± 1.1 m3 kg−1, consistent with expectations, while anthracene yields a higher-than-anticipated value of −13.6 ± 1.3 m3 kg−1. We attribute the high anthracene value to the planar aromatic molecule's magnetic anisotropy and partial alignment in the molecular beam, and estimate the magnitude of the effect on the observed deflection.

Graphical abstract: Quantum-assisted diamagnetic deflection of molecules

Supplementary files

Article information

Article type
24 Apr 2020
15 Jun 2020
First published
22 Jun 2020
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2020,22, 14036-14041

Quantum-assisted diamagnetic deflection of molecules

Y. Y. Fein, A. Shayeghi, F. Kiałka, P. Geyer, S. Gerlich and M. Arndt, Phys. Chem. Chem. Phys., 2020, 22, 14036 DOI: 10.1039/D0CP02211J

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