Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 552482

The influence of CuFe2O4 nanoparticles on superconductivity of MgB2


Novosel, Nikolina; Pajić, Damir; Skoko, Željko; Mustapić, Mislav; Babić, Emil; Zadro, Krešo; Horvat, Joseph
The influence of CuFe2O4 nanoparticles on superconductivity of MgB2 // Physics Procedia / Kes, Peter ; Rogalla, Horst (ur.).
Haag, Nizozemska: Elsevier, 2012. str. 1498-1503 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


CROSBI ID: 552482 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
The influence of CuFe2O4 nanoparticles on superconductivity of MgB2

Autori
Novosel, Nikolina ; Pajić, Damir ; Skoko, Željko ; Mustapić, Mislav ; Babić, Emil ; Zadro, Krešo ; Horvat, Joseph

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Physics Procedia / Kes, Peter ; Rogalla, Horst - : Elsevier, 2012, 1498-1503

Skup
Superconductivity Centennial Conference

Mjesto i datum
Haag, Nizozemska, 18-23.09.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
MgB2; magnetic nanoparticle doping

Sažetak
The influence of CuFe2O4 nanoparticle doping on superconducting properties of Fe-sheated MgB2 wires has been studied. The wires containing 0, 3 and 7.5 wt.% of monodisperse superparamagnetic nanoparticles (~ 7 nm) were sintered at 650°C or 750°C for 1 hour in the pure argon atmosphere. X-ray diffraction patterns of doped samples showed very small maxima corresponding to iron boride and an increase in the fraction of MgO phase indicating some interaction of nanoparticles with Mg and B. Both magnetic and transport measurements (performed in the temperature range 2−42 K and magnetic field up to 16 T) showed strong deterioration of the superconducting properties upon doping with CuFe2O4. The transition temperatures, Tc, of doped samples decreased for about 1.4 K per wt.% of CuFe2O4. Also, the irreversibility fields Birr(T) decreased progressively with increasing doping. Accordingly, also the suppression of Jc with magnetic field became stronger. The observed strong deterioration of superconducting properties of MgB2 wires is at variance with reported enhancement of critical currents at higher temperatures (determined from magnetization) in bulk MgB2 samples doped with Fe3O4 nanoparticles. The probable reason for this discrepancy is briefly discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
119-1191458-1017 - Nanomagneti (Zadro, Krešo, MZOS ) ( POIROT)
119-1191458-1019 - Elektromagnetska svojstva nanostrukturiranih materijala (Babić, Emil, MZOS ) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Krešo Zadro (autor)

Avatar Url Damir Pajić (autor)

Avatar Url Emil Babić (autor)

Avatar Url Nikolina Novosel (autor)

Avatar Url Mislav Mustapić (autor)

Avatar Url Željko Skoko (autor)


Citiraj ovu publikaciju

Novosel, Nikolina; Pajić, Damir; Skoko, Željko; Mustapić, Mislav; Babić, Emil; Zadro, Krešo; Horvat, Joseph
The influence of CuFe2O4 nanoparticles on superconductivity of MgB2 // Physics Procedia / Kes, Peter ; Rogalla, Horst (ur.).
Haag, Nizozemska: Elsevier, 2012. str. 1498-1503 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Novosel, N., Pajić, D., Skoko, Ž., Mustapić, M., Babić, E., Zadro, K. & Horvat, J. (2012) The influence of CuFe2O4 nanoparticles on superconductivity of MgB2. U: Kes, P. & Rogalla, H. (ur.)Physics Procedia.
@article{article, year = {2012}, pages = {1498-1503}, keywords = {MgB2, magnetic nanoparticle doping}, title = {The influence of CuFe2O4 nanoparticles on superconductivity of MgB2}, keyword = {MgB2, magnetic nanoparticle doping}, publisher = {Elsevier}, publisherplace = {Haag, Nizozemska} }
@article{article, year = {2012}, pages = {1498-1503}, keywords = {MgB2, magnetic nanoparticle doping}, title = {The influence of CuFe2O4 nanoparticles on superconductivity of MgB2}, keyword = {MgB2, magnetic nanoparticle doping}, publisher = {Elsevier}, publisherplace = {Haag, Nizozemska} }




Contrast
Increase Font
Decrease Font
Dyslexic Font