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Description
| - Collective magnetic behavior of CoFe2O4 nanoparticles with diameters of 76, 16, 15 and 8 nm, respectively, prepared by di erent chemical methods has been investigated. Particle composition, size and structure have been characterized by inductive coupled plasma (ICP), transmission elektron microscopy (TEM) and powder X-ray di raction (PXRD). Basic magnetic properties have been determined from the temperature dependence of magnetization and magnetization isotherms measurements. The three samples exhibit characteristic of a superparamagnetic system with the presence of strong interparticle interactions. Magnetic relaxation phenomena have been examined via frequency-dependent ac susceptibility measurements and aging and memory e ect experiments. For the particles coated with oleic acid, it has been demonstrated that the sample reveals all attributes of a super-spin glass (SSG) system with strong interparticle interactions.
- Collective magnetic behavior of CoFe2O4 nanoparticles with diameters of 76, 16, 15 and 8 nm, respectively, prepared by di erent chemical methods has been investigated. Particle composition, size and structure have been characterized by inductive coupled plasma (ICP), transmission elektron microscopy (TEM) and powder X-ray di raction (PXRD). Basic magnetic properties have been determined from the temperature dependence of magnetization and magnetization isotherms measurements. The three samples exhibit characteristic of a superparamagnetic system with the presence of strong interparticle interactions. Magnetic relaxation phenomena have been examined via frequency-dependent ac susceptibility measurements and aging and memory e ect experiments. For the particles coated with oleic acid, it has been demonstrated that the sample reveals all attributes of a super-spin glass (SSG) system with strong interparticle interactions. (en)
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Title
| - Relaxation phenomena in ensembles of CoFe2O4 nanoparticles
- Relaxation phenomena in ensembles of CoFe2O4 nanoparticles (en)
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skos:prefLabel
| - Relaxation phenomena in ensembles of CoFe2O4 nanoparticles
- Relaxation phenomena in ensembles of CoFe2O4 nanoparticles (en)
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skos:notation
| - RIV/68378271:_____/12:00377160!RIV13-AV0-68378271
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68378271:_____/12:00377160
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - CoFe2O4; super-spin-glass; coprecipitation; decomposition; dynamic magnetic properties (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Magnetism and Magnetic Materials
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Poltierová Vejpravová, Jana
- Bittová, Barbara
- Mantlíková, A.
- Roca, A. G.
- Morales, M. P.
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1016/j.jmmm.2011.11.005
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