About: Low-temperature magnetic anomaly in magnetite

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have studied experimentally the responses of high-quality single crystals of stoichiometric synthetic magnetite to applied weak dc and ac magnetic fields in the range of 6–60 K, far below the Verwey transition. The results can be compared to so-called magnetic after effects (MAE) measurements, which are the most extensive magnetic measurements of magnetite at these temperatures. We present a novel point of view on the relaxation phenomena encountered at these temperatures—the low-temperature anomaly, addressing the striking difference between the results of conventional ac susceptibility measurements and those accompanying MAE measurements, i.e., periodic excitations with strong magnetic pulses. We also draw a connection between this anomaly and the so-called glasslike transition, and discuss possible mechanisms responsible for these effects. We have studied experimentally the responses of high-quality single crystals of stoichiometric synthetic magnetite to applied weak dc and ac magnetic fields in the range of 6–60 K, far below the Verwey transition. The results can be compared to so-called magnetic after effects (MAE) measurements, which are the most extensive magnetic measurements of magnetite at these temperatures. We present a novel point of view on the relaxation phenomena encountered at these temperatures—the low-temperature anomaly, addressing the striking difference between the results of conventional ac susceptibility measurements and those accompanying MAE measurements, i.e., periodic excitations with strong magnetic pulses. We also draw a connection between this anomaly and the so-called glasslike transition, and discuss possible mechanisms responsible for these effects. (en)
Title	Low-temperature magnetic anomaly in magnetite Low-temperature magnetic anomaly in magnetite (en)
skos:prefLabel	Low-temperature magnetic anomaly in magnetite Low-temperature magnetic anomaly in magnetite (en)
skos:notation	RIV/68378271:_____/12:00390393!RIV13-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(ME10069), Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	21
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Janů, Zdeněk Švindrych, Zdeněk
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	147534
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/12:00390393
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	single-crystal; Verwey transition; FE3O4; susceptibility; conduction; anisotropy; growth (en)
http://linked.open.../riv/klicoveSlovo	single-crystal anisotropy conduction growth susceptibility FE3O4 Verwey transition
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[1E1682394F64]
http://linked.open...i/riv/nazevZdroje	Physical Review. B
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Engineering in Superconductivity
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	86
http://linked.open...iv/tvurceVysledku	Janů, Zdeněk Švindrych, Zdeněk Honig, J. M. Kozlowski, A.
http://linked.open...ain/vavai/riv/wos	000312023100001
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	1098-0121
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1103/PhysRevB.86.214406

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