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Pregled bibliografske jedinice broj: 890310

Spin dependent variable range hopping in manganites La1-xCaxMnO3 (x > 0.5)


Čulo, Matija; Basletić, Mario; Tafra, Emil; Hamzić, Amir; Korin-Hamzić, Bojana
Spin dependent variable range hopping in manganites La1-xCaxMnO3 (x > 0.5) // C-MAC Days 2016 / de Boissieu, Marc ; Mihalkovič, Marek ; Švec, Peter (ur.).
Bratislava: VEDA, Publishing House of the Slovak Academy of Sciences, 2016. str. P-03 (poster, nije recenziran, sažetak, znanstveni)


CROSBI ID: 890310 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Spin dependent variable range hopping in manganites La1-xCaxMnO3 (x > 0.5)

Autori
Čulo, Matija ; Basletić, Mario ; Tafra, Emil ; Hamzić, Amir ; Korin-Hamzić, Bojana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
C-MAC Days 2016 / De Boissieu, Marc ; Mihalkovič, Marek ; Švec, Peter - Bratislava : VEDA, Publishing House of the Slovak Academy of Sciences, 2016, P-03

ISBN
978-80-224-1540-8

Skup
C-MAC Days 2016

Mjesto i datum
Bratislava, Slovačka, 21 -24.11.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
manganites ; mixed valence state ; colossal magnetoresistance ; magnetoransport ; magnetization ; spin dependent variable range hopping ; phase coexistence

Sažetak
Manganites La1-xCaxMnO3 belong to the family of manganese oxides with a general chemical formula R1-xAxMnO3, where R represents a rare earth element or Bi and A an alkali or alkaline earth metal or Pb. Replacement of trivalent R and divalent A introduces a mixed valence state Mn3+/Mn4+ and depending on the concentration x causes a presence of various phases in the phase diagrams of R1-xAxMnO3. A huge interest for this family of compounds started in 1994. when Jin et al. found a huge decrease of resistivity in external magnetic field close to Curie temperature known as colossal magnetoresistance (CMR). CMR is present in the part of the phase diagram with ferromagnetic metallic ground state which for the investigated system La1-xCaxMnO3 appears for concentrations 0.2 < x < 0.5. Here we focused on the poorly explored part of the phase diagram x > 0.5 with a paramagnetic insulating phase at high, charge order phase at intermediate and antiferromagnetic insulating phase at low temperatures. We performed magnetotransport and magnetization measurements in the temperature interval 4.2-300 K and magnetic fields up to 5 T on thin film manganites for different concentrations 0.52 ≤ x ≤ 0.75. Our results show traces of CMR and ferromagnetism and a strong coupling between magnetic and transport properties which can be interpreted in terms of spin dependent variable range hopping mechanism and a coexistence of ferromagnetic and antiferromagnetic phase.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
HRZZ-IP-2013-11-1011 - Jako korelirani elektroni u slojnim organskim materijalima i manganitima: niskofrekventna pobuđenja i nelinearna dinamika (SCEinLOM) (Tomić, Silvia, HRZZ - 2013-11) ( POIROT)

Ustanove:
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Mario Basletić (autor)

Avatar Url Matija Culo (autor)

Avatar Url Emil Tafra (autor)

Avatar Url Bojana Hamzić (autor)

Avatar Url Amir Hamzić (autor)


Citiraj ovu publikaciju

Čulo, Matija; Basletić, Mario; Tafra, Emil; Hamzić, Amir; Korin-Hamzić, Bojana
Spin dependent variable range hopping in manganites La1-xCaxMnO3 (x > 0.5) // C-MAC Days 2016 / de Boissieu, Marc ; Mihalkovič, Marek ; Švec, Peter (ur.).
Bratislava: VEDA, Publishing House of the Slovak Academy of Sciences, 2016. str. P-03 (poster, nije recenziran, sažetak, znanstveni)
Čulo, M., Basletić, M., Tafra, E., Hamzić, A. & Korin-Hamzić, B. (2016) Spin dependent variable range hopping in manganites La1-xCaxMnO3 (x > 0.5). U: de Boissieu, M., Mihalkovič, M. & Švec, P. (ur.)C-MAC Days 2016.
@article{article, year = {2016}, pages = {P-03-P-03}, keywords = {manganites, mixed valence state, colossal magnetoresistance, magnetoransport, magnetization, spin dependent variable range hopping, phase coexistence}, isbn = {978-80-224-1540-8}, title = {Spin dependent variable range hopping in manganites La1-xCaxMnO3 (x > 0.5)}, keyword = {manganites, mixed valence state, colossal magnetoresistance, magnetoransport, magnetization, spin dependent variable range hopping, phase coexistence}, publisher = {VEDA, Publishing House of the Slovak Academy of Sciences}, publisherplace = {Bratislava, Slova\v{c}ka} }
@article{article, year = {2016}, pages = {P-03-P-03}, keywords = {manganites, mixed valence state, colossal magnetoresistance, magnetoransport, magnetization, spin dependent variable range hopping, phase coexistence}, isbn = {978-80-224-1540-8}, title = {Spin dependent variable range hopping in manganites La1-xCaxMnO3 (x > 0.5)}, keyword = {manganites, mixed valence state, colossal magnetoresistance, magnetoransport, magnetization, spin dependent variable range hopping, phase coexistence}, publisher = {VEDA, Publishing House of the Slovak Academy of Sciences}, publisherplace = {Bratislava, Slova\v{c}ka} }




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