Quantum spin dynamics

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Acuminated fluorescence of Er3+ centres in endohedral fullerenes through the incarceration of a carbide cluster

CHEMICAL PHYSICS LETTERS 476:1-3 (2009) 41-45

Authors:

Simon R Plant, Geraldine Dantelle, Yasuhiro Ito, Tsz Cheong Ng, Arzhang Ardavan, Hisanori Shinohara, Robert A Taylor, G Andrew D Briggs, Kyriakos Porfyrakis
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Clocking the Collapse of a Mott Gap

ULTRAFAST PHENOMENA XVI 92 (2009) 167-+

Authors:

S Wall, D Brida, HP Ehrke, A Ardavan, S Bonora, H Matsusaki, H Uemura, Y Takahashi, T Hasegawa, H Okamoto, G Cerullo, A Cavalleri
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Efficient Dynamic Nuclear Polarization at High Magnetic Fields (vol 98, 220501, 2007)

PHYSICAL REVIEW LETTERS 103:19 (2009) ARTN 199902

Authors:

Gavin W Morley, Johan van Tol, Arzhang Ardavan, Kyriakos Porfyrakis, Jinying Zhang, G Andrew D Briggs
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Inadequacies in the conventional treatment of the radiation field of moving sources

JOURNAL OF MATHEMATICAL PHYSICS 50:10 (2009) ARTN 103510

Authors:

Houshang Ardavan, Arzhang Ardavan, John Singleton, Joseph Fasel, Andrea Schmidt
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Magnetic properties of ErSc2 N @ C80, Er2 ScN @ C80 and Er3 N @ C80 fullerenes

Chemical Physics Letters 466:4-6 (2008) 155-158

Authors:

A Tiwari, G Dantelle, K Porfyrakis, AAR Watt, A Ardavan, GAD Briggs

Abstract:

The magnetic properties of ErSc2 N @ C80, Er2 ScN @ C80 and Er3 N @ C80 metallofullerenes are characterized in the temperature range 2 to 300 K up to a magnetic field of 7 T. The magnetic susceptibility of these fullerenes follows the Curie-Weiss law. The fitting parameters to the Curie-Weiss law provide an effective magnetic moment μeff of Er3 + ion in each of the fullerenes. The magnetic moment decreases with the increase in number of Er3 + ions inside the cage. This is related to crystal-field effects, intramolecular interactions and the local quenching of the angular momentum of the ion within the fullerene cage. © 2008 Elsevier B.V. All rights reserved.
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