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Grain-Size-Induced Collapse of Variable Range Hopping and Promotion of Ferromagnetism in Manganite La0.5Ca0.5MnO3
Crystals, 12 (2022), 5; 724. https://doi.org/10.3390/cryst12050724
Novosel, Nikolina; Rivas Góngora, David; Jagličić, Zvonko; Tafra, Emil; Basletić, Mario; Hamzić, Amir; Klaser, Teodoro; Skoko, Željko; Salamon, Krešimir; Kavre Piltaver, Ivna; Petravić, Mladen; Korin-Hamzić, Bojana; Tomić, Silvia; Gorshunov, Boris P.; Zhang, Tao; Ivek, Tomislav; Čulo, Matija Više autora...

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Novosel, N., Rivas Góngora, D., Jagličić, Z., Tafra, E., Basletić, M., Hamzić, A. ... Čulo, M. (2022). Grain-Size-Induced Collapse of Variable Range Hopping and Promotion of Ferromagnetism in Manganite La0.5Ca0.5MnO3. Crystals, 12. (5). doi: 10.3390/cryst12050724

Novosel, Nikolina, et al. "Grain-Size-Induced Collapse of Variable Range Hopping and Promotion of Ferromagnetism in Manganite La0.5Ca0.5MnO3." Crystals, vol. 12, br. 5, 2022. https://doi.org/10.3390/cryst12050724

Novosel, Nikolina, David Rivas Góngora, Zvonko Jagličić, Emil Tafra, Mario Basletić, Amir Hamzić, Teodoro Klaser, et al. "Grain-Size-Induced Collapse of Variable Range Hopping and Promotion of Ferromagnetism in Manganite La0.5Ca0.5MnO3." Crystals 12, br. 5 (2022). https://doi.org/10.3390/cryst12050724

Novosel, N., et al. (2022) 'Grain-Size-Induced Collapse of Variable Range Hopping and Promotion of Ferromagnetism in Manganite La0.5Ca0.5MnO3', Crystals, 12(5). doi: 10.3390/cryst12050724

Novosel N, Rivas Góngora D, Jagličić Z, Tafra E, Basletić M, Hamzić A, i sur.. Grain-Size-Induced Collapse of Variable Range Hopping and Promotion of Ferromagnetism in Manganite La0.5Ca0.5MnO3. Crystals [Internet]. 19.05.2022. [pristupljeno 22.08.2024.];12(5). doi: 10.3390/cryst12050724

N. Novosel, et al., "Grain-Size-Induced Collapse of Variable Range Hopping and Promotion of Ferromagnetism in Manganite La0.5Ca0.5MnO3", Crystals, vol. 12, br. 5, Svibanj 2022. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:255487. [Citirano: 22.08.2024.]

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Naslov (engleski)Grain-Size-Induced Collapse of Variable Range Hopping and Promotion of Ferromagnetism in Manganite La0.5Ca0.5MnO3
AutorNikolina Novosel
AutorDavid Rivas Góngora
AutorZvonko Jagličić
AutorEmil Tafra
AutorMario Basletić
AutorAmir Hamzić
AutorTeodoro Klaser
AutorŽeljko Skoko
AutorKrešimir Salamon
AutorIvna Kavre Piltaver
AutorMladen Petravić
AutorBojana Korin-Hamzić
AutorSilvia Tomić
AutorBoris P. Gorshunov
AutorTao Zhang
AutorTomislav Ivek
AutorMatija Čulo
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
Among transition metal oxides, manganites have attracted significant attention because of colossal magnetoresistance (CMR) - a magnetic field-induced metal-insulator transition close to the Curie temperature. CMR is closely related to the ferromagnetic (FM) metallic phase which strongly competes with the antiferromagnetic (AFM) charge ordered (CO) phase, where conducting electrons localize and create a long range order giving rise to insulator-like behavior. One of the major open questions in manganites is the exact origin of this insulating behavior. Here we report a dc resistivity and magnetization study on manganite La1−xCaxMnO3 ceramic samples with different grain size, at the very boundary between CO/AFM insulating and FM metallic phases x=0.5. Clear signatures of variable range hopping (VRH) are discerned in resistivity, implying the disorder-induced (Anderson) localization of conducting electrons. A significant increase of disorder associated with the reduction in grain size, however, pushes the system in the opposite direction from the Anderson localization scenario, resulting in a drastic decrease of resistivity, collapse of the VRH, suppression of the CO/AFM phase and growth of an FM contribution. These contradictory results are interpreted within the standard core-shell model and recent theories of Anderson localization of interacting particles.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaCrystals
Brojčani podacivol. 12, br. 5, 724
e-ISSN2073-4352
DOIhttps://doi.org/10.3390/cryst12050724
URN:NBNurn:nbn:hr:217:255487
Datum objave publikacije2022-05-19
ProjektŠifra: IP-2018-01-2730
Naziv (hrvatski): Kolektivna dinamika u magnetoelektricima
Kratica: ColDynaMo
Voditelj: Tomislav Ivek
Pravna nadležnost: Hrvatska
Financijer: Hrvatska zaklada za znanost
Linija financiranja: Research Projects
ProjektŠifra: IP-2013-11-1011
Naziv (hrvatski): Jako korelirani elektroni u slojnim organskim materijalima i manganitima: niskofrekventna pobuđenja i nelinearna dinamika
Naziv (engleski): Strongly Correlated Electrons in Layered Organics and Manganites: Low Frequency Excitations and Non-linear Dynamics
Kratica: SCEinLOM
Voditelj: Silvia Tomić
Pravna nadležnost: Hrvatska
Financijer: Hrvatska zaklada za znanost
Linija financiranja: Research Projects
URL dokumentahttps://www.mdpi.com/2073-4352/12/5/724
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Imenovanje 4.0 međunarodna (CC BY 4.0)
Javna napomena© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Received: 16 April 2022. Accepted: 16 May 2022. Published: 19 May 2022.
Datum i vrijeme pohrane2024-08-22 10:07:13