Low temperature magnetic susceptibility behavior of the Neuschwanstein EL6 meteorite and mineral daubreelite (FeCr2S4)

0076032 - GLÚ 2007 US eng A - Abstrakt
Kohout, Tomáš - Kletetschka, Günther - Lehtinen, M. - Pesonen, L. J. - Wasilewski, P. J.
Low temperature magnetic susceptibility behavior of the Neuschwanstein EL6 meteorite and mineral daubreelite (FeCr2S4).
[Magnetická susceptibilita meteoritu Neuschwanstein EL6 a minerálu daubreelit (FeCr2S4) za nízkých teplot.]
EOS, Transactions, American Geophysical Union. Roč. 87, č. 52 (2006). ISSN 0096-3941.
[2006 American Geophysical Union Fall Meeting. 11.12.2006-15.12.2006, San Francisco]
Výzkumný záměr: CEZ:AV0Z30130516
Klíčová slova: magnetic susceptibility * Neuschwanstein * daubreelite
Kód oboru RIV: DE - Zemský magnetismus, geodézie, geografie

The extensive study of magnetic susceptibility of Neuschwanstein meteorite and daubreelite extract form Coahuila iron meteorite (hexahedrite, II A) was conducted in order to investigate the low temperature magnetic susceptibility of those materials and its field and frequency dependence. Due to the similarity in the low temperature magnetic susceptibility behaviour of Neuschwanstein meteorite and daubreelite extract from Coahuila meteorite we link the Neuschwanstein ~150 K feature to the Tc of daubreelite present in this meteorite. Daubreelite with its Tc ~160 K may be significant magnetic mineral in cold space environment. However, warming to the terrestrial temperatures results in magnetic unblocking and lost of the magnetic information.
Trvalý link: http://hdl.handle.net/11104/0143238