Quantum spin dynamics

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Will spin-relaxation times in molecular magnets permit quantum information processing?

Physical Review Letters 98:5 (2007)

Authors:

A Ardavan, O Rival, JJL Morton, SJ Blundell, AM Tyryshkin, GA Timco, REP Winpenny

Abstract:

Using X-band pulsed electron-spin resonance, we report the intrinsic spin-lattice (T1) and phase-coherence (T2) relaxation times in molecular nanomagnets for the first time. In Cr7M heterometallic wheels, with M=Ni and Mn, phase-coherence relaxation is dominated by the coupling of the electron spin to protons within the molecule. In deuterated samples T2 reaches 3μs at low temperatures, which is several orders of magnitude longer than the duration of spin manipulations, satisfying a prerequisite for the deployment of molecular nanomagnets in quantum information applications. © 2007 The American Physical Society.
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Will Spin-Relaxation Times in Molecular Magnets Permit Quantum Information Processing?

Physical Review Letters 98 (2007) 057201 4pp

Authors:

A Ardavan, John J.L. Morton, Olivier Rival, Stephen J. Blundell
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Occurrence of concurrent `orthogonal' polarization modes in the Lienard-Wichert field of a rotating superluminal source

(2007)

Authors:

A Schmidt, H Ardavan, J Fasel, J Singleton, A Ardavan
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Dissipation in the superconducting state of κ-(BEDT-TTF)2Cu(NCS)2

PHYSICAL REVIEW B 76:1 (2007) ARTN 014506

Authors:

Liang Yin, Moon-Sun Nam, James G Analytis, Stephen J Blundell, Arzhang Ardavan, John A Schlueter, Takahiko Sasaki
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Environmental effects on electron spin relaxation in N@C60

PHYSICAL REVIEW B 76:8 (2007) ARTN 085418

Authors:

John JL Morton, Alexei M Tyryshkin, Arzhang Ardavan, Kyriakos Porfyrakis, SA Lyon, G Andrew D Briggs
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