Submitted on: 12 December 2008.
Revised on: 04 January 2009.
Accepted on: 19 January 2009.
npj Quantum Materials
Submitted on: 27 June 2004.
Revised on: 08 August 2004.
Accepted on: 03 September 2004.
npj Quantum Materials---NATURE PORTFOLIO
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Submitted on: 24 August 2008.
Revised on: 04 October 2008.
Accepted on: 17 October 2008.
npj Quantum Materials---NATURE PORTFOLIO
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