Probing the Nuclear Spin-Lattice Relaxation Time at the Nanoscale
J.J.T. Wagenaar (Universiteit Leiden)
A.M.J. Den Haan (Universiteit Leiden)
J.M. De Voogd (Universiteit Leiden)
L. Bossoni (Universiteit Leiden)
T.A. De Jong (Universiteit Leiden)
M. de Wit (Universiteit Leiden)
K.M. Bastiaans (Universiteit Leiden)
D.J. Thoen (TU Delft - Electrical Engineering, Mathematics and Computer Science)
A. Endo (TU Delft - Electrical Engineering, Mathematics and Computer Science, TU Delft - Applied Sciences, Kavli institute of nanoscience Delft)
T.M. Klapwijk (Kavli institute of nanoscience Delft, Moscow State Pedagogical University, TU Delft - QN/Klapwijk Lab)
J. Zaanen (Universiteit Leiden)
T.H. Oosterkamp (Universiteit Leiden)
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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.