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STM NMR and nuclear spin noise
KTH, School of Engineering Sciences (SCI), Physics.
2006 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 73, no 18, 184429- p.Article in journal (Refereed) Published
Abstract [en]

Fluctuations of an electronic spin can be revealed in the tunneling current fluctuations of a scanning tunneling microscope (STM). We consider fluctuations of the electronic spin due to coupling to nuclear spin. We argue that the noise spectroscopy of electronic spin can reveal the nuclear spin dynamics due to hyperfine coupling. We find that the STM tunneling current power spectrum develops hyperfine split satellites of the main lines at Larmor frequency and at zero frequency. We also address the role of the rf field that is at or near the resonance with the nuclear hyperfine field. This approach is similar to electron nuclear double resonance in that is allows one to detect nuclear spin dynamics indirectly through its effect on electronic spin.

Place, publisher, year, edition, pages
2006. Vol. 73, no 18, 184429- p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-37350DOI: 10.1103/PhysRevB.73.184429ISI: 000237950300082ScopusID: 2-s2.0-33646874194OAI: diva2:433370
Available from: 2011-08-09 Created: 2011-08-09 Last updated: 2012-03-20Bibliographically approved

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