2013
DOI: 10.1038/nphys2794
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Protection of excited spin states by a superconducting energy gap

Abstract: The latest concepts for quantum computing and data storage envision to address and manipulate single spins. A limitation for single atoms or molecules in contact to a metal surface are the short lifetime of excited spin states, typically picoseconds, due to the exchange of energy and angular momentum with the itinerant electrons of the substrate [1-4]. Here we show that paramagnetic molecules on a superconducting substrate exhibit excited spin states with a lifetime of approximately 10 ns. We ascribe this incr… Show more

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Cited by 138 publications
(235 citation statements)
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“…The tip of the STM is used as the source electrode whereas a metallic substrate acts as drain electrode. The advantages of the STM approach are the in-situ imaging of the molecule 16 , the local electrical probing on different parts of the molecule 17 and a higher control over the electronic coupling Γ. On the other hand, a limitation is the absence of a gate electrode.…”
Section: Electronic Transport Through Individual Magnetic Molecumentioning
confidence: 99%
“…The tip of the STM is used as the source electrode whereas a metallic substrate acts as drain electrode. The advantages of the STM approach are the in-situ imaging of the molecule 16 , the local electrical probing on different parts of the molecule 17 and a higher control over the electronic coupling Γ. On the other hand, a limitation is the absence of a gate electrode.…”
Section: Electronic Transport Through Individual Magnetic Molecumentioning
confidence: 99%
“…Refs. [2][3][4][5][6][7][8][9][10]), and with which many of the predictions of Douglas L. Mills were verified. Understanding the excitation and the dynamical behavior of such nano-magnetic systems is naturally a topic of prime importance, actively studied recently both to provide insight into fundamental aspects of magnetism and as possible elements for future information technology.…”
Section: Introductionmentioning
confidence: 99%
“…In particular we study thermal transport and its response to changes of the magnetic configurations. Our set-up pertains to, for instance, M-phthalocyanine (MPc), M-porphyrins, where M denotes a transition metal atom [61][62][63][64], e.g., Cr, Mn, Fe, Co, Ni, Cu, and also to bis(phthalocyaninato)R (TPc 2 ) [65,66], where R denotes a rare earth element, e.g., Tb. Such molecules can be investigated in, for example, mechanically controlled breakjunctions [66,67], in carbon nanotube assemblies [65] and scanning tunneling microscope [62,63].…”
Section: Introductionmentioning
confidence: 99%