Pushing the limits of torque-detected electron-spin resonance

This interdisciplinary project aims to develop and employ a highly sensitive, broadband, highfrequency electron spin resonance spectrometer based on torque magnetometric detection. Starting from our recent preliminary work, we will first extend the applicability of torque-detected ESR, and optimize the spectrometer as well as the measurement protocol. The implementation of zero-deflection  measurement capabilities will increase the dynamic range, while soft cantilevers and alternative detection schemes improve the sensitivity. This will enable us to carry out highly sensitive frequency-, field-, and angle-dependent measurements at high-frequencies on “real life” samples with limited numbers of spins. These samples include surface arrays of spin centers, and high-spin, high-anisotropy centers in the active sites of metalloproteins.

M. Dressel

Prof. Dr. Martin Dressel

1. Physikalisches Institut der Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart
Tel.: +49 711 685-64947 Email:dressel@pi1.physik.uni-stuttgart.de
Fax: +49 711 685-64886 Website: http://
J. van Slageren

Prof. Dr. Joris van Slageren

Institut für Physikalische Chemie der Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart
Tel.: +49 711 685-64380 Email: slageren@ipc.uni-stuttgart.de
Fax: +49 711 685-64495 Website: http://
L. Bogani

Dr. Lapo Bogani

1. Physikalisches Institut der Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart
Tel.: +49 711 685-69791 Email: lapo.bogani@pi1.physik.uni-stuttgart.de
Fax: +49 711 685-64886 Website: http://