2012
DOI: 10.1038/ncomms1895
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Robust absolute magnetometry with organic thin-film devices

Abstract: Magnetic field sensors based on organic thin-film materials have attracted considerable interest in recent years as they can be manufactured at very low cost and on flexible substrates. However, the technological relevance of such magnetoresistive sensors is limited owing to their narrow magnetic field ranges (∼30 mT) and the continuous calibration required to compensate temperature fluctuations and material degradation. Conversely, magnetic resonance (MR)-based sensors, which utilize fundamental physical rela… Show more

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Cited by 97 publications
(111 citation statements)
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“…Although no Hanle effect as such has been observed in organic semiconductors, the demonstration of spin precession of conduction electrons in OSC by paramagnetic resonance 24 clearly shows that it the underlying physics is the same for organic and inorganic semiconductors.…”
Section: Introductionmentioning
confidence: 99%
“…Although no Hanle effect as such has been observed in organic semiconductors, the demonstration of spin precession of conduction electrons in OSC by paramagnetic resonance 24 clearly shows that it the underlying physics is the same for organic and inorganic semiconductors.…”
Section: Introductionmentioning
confidence: 99%
“…Such fluctuations could arise from spatial variations in spin-spin couplings experienced by a migrating charge, and should be particularly strong if transport is anisotropic, as in molecular wires 29 . The ability to form collective states of radicalpair spins may find application in coherent control of chemical reactions, but also offers an alternative room-temperature route to permutation-symmetry-based concepts for electrically addressable quantum information processing 30 and fast resonance-based magnetometry 4 , because the effect of power broadening is reduced.…”
Section: Lettersmentioning
confidence: 99%
“…This parameter range is challenging to probe by electron paramagnetic resonance spectroscopy because thermal magnetic polarization is negligible. It is accessed through spin-dependent conductivity that is controlled by electron-hole pairs of singlet and triplet spin-permutation symmetry without the need of thermal spin polarization 4 Macroscopic phase coherence is a hallmark of many exotic states of matter such as superconductivity, ferromagnetism or BoseEinstein condensation. Such coherence may also emerge between two-level systems, where it is mediated by electromagnetic fields, as described by the Dicke effect in collisional narrowing 5 and superradiance 6 .…”
mentioning
confidence: 99%
“…[10][11][12] Although much progress has been made in explaining interfacial properties, [13][14][15][16][17] progress on the understanding of spin transport in the organic medium met greater difficulties.…”
Section: Introductionmentioning
confidence: 99%