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  Coupled spin S = 1/2 dimer systems based on nitronyl-nitroxide biradicals

Wolf, G., Cong, P., Remović-Langer, K., Borozdina, Y., & Mostovich, E. (2009). Coupled spin S = 1/2 dimer systems based on nitronyl-nitroxide biradicals. In Journal of Physics: Conference Series (pp. 905-908). Bristol, UK: Institute of Physics.

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Wolf, G, Author
Cong, PT, Author
Remović-Langer, K, Author
Borozdina, YB1, Author           
Mostovich, E, Author
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1External Organizations, ou_persistent22              

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 Abstract: Due to the collective behaviour of their magnetic excitations, arrays of coupled S = 1/2 spin dimers, exposed to a magnetic field, are of general interest in solid state physics as they can be considered as the source for generating a gas of interacting bosons. We present a new class of coupled spin-dimer systems based on purely organic building blocks. From magnetic susceptibility and magnetization data of various nitronyl-nitroxide biradicals, we extract the influence of the bridging ligands on the intra-dimer coupling constant Jdimer. The target materials show moderate values of Jdimer ranging from 5 to 10 K, and indications for significant inter-dimer couplings. The moderate size of these couplings, together with the high flexibility against chemical modifications, make these materials promising candidates for studying interacting quantum objects under well-controlled conditions.

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 Dates: 2009-07
 Publication Status: Published in print
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 Identifiers: DOI: 10.1088/1742-6596/200/1/012225
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Title: International Conference on Magnetism (ICM 2009)
Place of Event: Karlsruhe, Germany
Start-/End Date: 2009-07-26 - 2009-07-31

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Title: Journal of Physics: Conference Series
Source Genre: Proceedings
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Publ. Info: Bristol, UK : Institute of Physics
Pages: - Volume / Issue: 200 (1) Sequence Number: 012225 Start / End Page: 905 - 908 Identifier: ISBN: 78-1-61738-277-2