Probing the Nuclear Spin-Lattice Relaxation Time at the Nanoscale
J. J. T. Wagenaar, A. M. J. den Haan, J. M. de Voogd, L. Bossoni, T., A. de Jong, M. de Wit, K. M. Bastiaans, D. J. Thoen, A. Endo, T. M. Klapwijk,, J. Zaanen, T. H. Oosterkamp
TL;DR
This paper reports on measuring nuclear spin-lattice relaxation times at the nanoscale using magnetic resonance force microscopy at millikelvin temperatures, enabling local magnetic property analysis of complex electron systems.
Contribution
It introduces a method for local measurement of spin-lattice relaxation times at very low temperatures, expanding capabilities for studying inhomogeneous and strongly correlated electron systems.
Findings
Measured relaxation times on copper at 42 mK
Verified low temperature via Korringa relation
Demonstrated potential for studying complex electron systems
Abstract
Nuclear spin-lattice relaxation times are measured on copper using magnetic resonance force microscopy performed at temperatures down to 42 mK. The low temperature is verified by comparison with the Korringa relation. Measuring spin-lattice relaxation times locally at very low temperatures opens up the possibility to measure the magnetic properties of inhomogeneous electron systems realized in oxide interfaces, topological insulators and other strongly correlated electron systems such as high-Tc superconductors.
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