Low-temperature magnetic properties of the Neuschwanstein EL6 meteorite

0088684 - GLÚ 2012 RIV NL eng J - Článek v odborném periodiku
Kohout, T. - Kosterov, A. - Jackson, M. - Pesonen, E. - Kletetschka, Günther - Lehtinen, M.
Low-temperature magnetic properties of the Neuschwanstein EL6 meteorite.
Earth and Planetary Science Letters. Roč. 261, 1-2 (2007), s. 143-151. ISSN 0012-821X. E-ISSN 1385-013X
Výzkumný záměr: CEZ:AV0Z30130516
Klíčová slova: Neuschwanstein meteorite * magnetomineralogy * magnetic properties
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
Impakt faktor: 3.873, rok: 2007

The low-temperature magnetic properties of the Neuschwanstein EL6 meteorite as well as of the daubreelite (FeCr2S4), troilite (FeS), and FeNi mineral phases were investigated. Low-temperature magnetic behavior of the Neuschwanstein meteorite appears to be controlled mostly by FeNi. However, two magnetic features at 70 K (Tm) and 150 K (Tc), are due to a magnetic transition in and Curie temperature of ferrimagnetic daubreelite. In the antiferromagnetic troilite amagnetic transition at Tm60Kwas identified. Its nature seems to bemost likely due to a change in the orientation and attendant canting of the antiparallel spins. . Daubreelite with its Tc 160 K might be a significant magnetic mineral in cold environment. Low-temperature magnetic data of daubreelite, troilite and FeNi presented here are useful for the interpretation of the low-temperature magnetic measurements of various extraterrestrial materials and for the identification of the presence of these phases.
Trvalý link: http://hdl.handle.net/11104/0150129