ESR-STM Spectrometer for Paramagnetic Molecular Adsorbates on Surfaces

Paolo Messina, Matteo Mannini, Andrea Caneschi, Dante Gatteschi, Lorenzo Sorace, Paolo Sigalotti, Cristian Sandrin, Paolo Pittana, Yishay Manassen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


ESR-STM is a technique able to detect noise at the Larmor frequency in the tunnelling current associated with the spin dynamics of a single paramagnetic center on the surface. Several questions concerning details of this phenomenon in different magnetic fields and tunnelling currents, and for different paramagnetic centers are still debated. In this paper we describe the construction and the testing of an instrument able to detect the ESR-STM signal from organic paramagnetic molecules (DPPH and BDPA) deposed on Au(111) at different magnetic fields. First results on these molecules are presented.
Original languageEnglish GB
Title of host publicationAmerican Physical Society, APS March Meeting, March 13-17, 2006
StatePublished - 1 Mar 2006


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