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6 papers · 1 filter
Force-detected nuclear double resonance between statistical spin polarizations
M. Poggio, H. J. Mamin, C. L. Degen +2
We demonstrate nuclear double resonance for nanometer-scale volumes of spins where random fluctuations rather than Boltzmann polarization dominate. When the Hartmann-Hahn condition…
Controlled Manipulation of Individual Vortices in a Superconductor
E. W. J. Straver, J. E. Hoffman, O. M. Auslaender +2
We report controlled local manipulation of single vortices by low temperature magnetic force microscope (MFM) in a thin film of superconducting Nb. We are able to position the vort…
The role of magnetic anisotropy in the Kondo effect
Alexander F. Otte, Markus Ternes, Kirsten von Bergmann +5
In the Kondo effect, a localized magnetic moment is screened by forming a correlated electron system with the surrounding conduction electrons of a non-magnetic host. Spin S=1/2 Ko…
Nonlinear Sigma Model Analysis of the AFM Phase Transition of the Kondo Lattice
T. Tzen Ong, B. A. Jones
We have studied the antiferromagnetic quantum phase transition of a 2D Kondo-Heisenberg square lattice using the non-linear sigma model. A renormalization group analysis of the com…
Scanning magnetic field microscope with a diamond single-spin sensor
C. L. Degen
We describe a scanning device where a single spin is used as an ultrasensitive, nanoscale magnetic field sensor. As this "probe spin" we consider a single nitrogen-vacancy defect c…
An off-board quantum point contact as a sensitive detector of cantilever motion
M. Poggio, M. P. Jura, C. L. Degen +4
Recent advances in the fabrication of microelectromechanical systems (MEMS) and their evolution into nanoelectromechanical systems (NEMS) have allowed researchers to measure extrem…