001047700 001__ 1047700
001047700 005__ 20251111202159.0
001047700 037__ $$aFZJ-2025-04466
001047700 1001_ $$0P:(DE-Juel1)145895$$aPetracic, Oleg$$b0$$ufzj
001047700 1112_ $$a(Digital) Institute Seminar JCNS-2$$cForschungszentrum Jülich, JCNS$$wGermany
001047700 245__ $$aCollective phenomena in magnetic nanoparticle systems and complex oxide thin films - and future plans$$f2025-11-13 - 
001047700 260__ $$c2025
001047700 3367_ $$033$$2EndNote$$aConference Paper
001047700 3367_ $$2DataCite$$aOther
001047700 3367_ $$2BibTeX$$aINPROCEEDINGS
001047700 3367_ $$2ORCID$$aLECTURE_SPEECH
001047700 3367_ $$0PUB:(DE-HGF)31$$2PUB:(DE-HGF)$$aTalk (non-conference)$$btalk$$mtalk$$s1762854650_30413$$xInvited
001047700 3367_ $$2DINI$$aOther
001047700 520__ $$aIn recent decades, there has been considerable interest in synthesizing, characterizing, andmodeling magnetic nanoparticles. This interest stems from the wide array of potential oralready existing applications such as functional materials, ferrofluids, smart coatings, novelspintronic devices, magnetic tracers for medical imaging methods, targeted drug delivery,magnetic hyperthermia, magnetic separation, and many more. Here I will discuss variousresults on iron oxide nanoparticles (IONPs) and focus on three aspects: properties of individualIONPs, collective properties of interacting IONPs, and properties coming from the coupling to aferroelectric substrate. In a second part, I will discuss properties of thin films of complex oxides.Complex oxides display multiple phenomena, including various types of magnetism,superconductivity, colossal magnetoresistance, and ferroelectricity. Specifically, the presenceof oxygen vacancies can result in large ionic conductivities. We have investigated epitaxial thinfilms of La0.7Sr0.3MnO3-δ and La0.7Sr0.3CoO3-δ. Gradual release of oxygen causes a topotactic phasetransition from the initial, ferromagnetic metallic perovskite structure to an antiferromagneticinsulating brownmillerite structure. In the third part, I will briefly discuss future plans in thearea of collective phenomena in JCNS-2.
001047700 536__ $$0G:(DE-HGF)POF4-632$$a632 - Materials – Quantum, Complex and Functional Materials (POF4-632)$$cPOF4-632$$fPOF IV$$x0
001047700 536__ $$0G:(DE-HGF)POF4-6G4$$a6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4)$$cPOF4-6G4$$fPOF IV$$x1
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001047700 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)145895$$aForschungszentrum Jülich$$b0$$kFZJ
001047700 9131_ $$0G:(DE-HGF)POF4-632$$1G:(DE-HGF)POF4-630$$2G:(DE-HGF)POF4-600$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vMaterials – Quantum, Complex and Functional Materials$$x0
001047700 9131_ $$0G:(DE-HGF)POF4-6G4$$1G:(DE-HGF)POF4-6G0$$2G:(DE-HGF)POF4-600$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lGroßgeräte: Materie$$vJülich Centre for Neutron Research (JCNS) (FZJ)$$x1
001047700 9141_ $$y2025
001047700 9201_ $$0I:(DE-Juel1)JCNS-2-20110106$$kJCNS-2$$lStreumethoden$$x0
001047700 9201_ $$0I:(DE-82)080009_20140620$$kJARA-FIT$$lJARA-FIT$$x1
001047700 980__ $$atalk
001047700 980__ $$aVDB
001047700 980__ $$aI:(DE-Juel1)JCNS-2-20110106
001047700 980__ $$aI:(DE-82)080009_20140620
001047700 980__ $$aUNRESTRICTED