Room temperature electrical detection of spin coherence in C60.
An experimental demonstration of electrical detection of coherent spin motion of weakly coupled, localized electron spins in thin fullerene C60 films at room temperature is presented. Pulsed electrically detected magnetic resonance experiments on vertical photocurrents through Al/C(60)/ZnO samples showed that an electron spin Rabi oscillation is reflected by transient current changes. The nature of possible microscopic mechanisms responsible for this spin to charge conversion as well as its implications for the readout of endohedral fullerene (N@C(60)) spin qubits are discussed.
Institut für Experimentalphysik, Freie Universität Berlin, Arnimalle 14, 14195 Berlin, Germany. harneit@physik.fu-berlin.de
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Harneit
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Boehme
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Schaefer
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Huebener
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Fostiropoulos
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Lips