E-viri
Recenzirano
-
Shinde, K. P.; Lee, E. J.; Manawan, M.; Lee, A. H.; Park, S.-Y.; Jo, Y.; Koo, B. K.; Park, J. S.
Applied physics. A, Materials science & processing, 11/2021, Letnik: 127, Številka: 11Journal Article
The structural, magnetic, and magnetocaloric properties of Ho 1− x Ca x MnO 3 ( x = 0, 0.1, 0.2, and 0.3) manganites were investigated in depth in this work. The samples were made by using standard solid-state reaction. The calcium-doped samples are formed in orthorhombic crystal structure with Pnma space group, while undoped sample shows hexagonal crystal structure with P63cm space group according to room temperature XRD measurements and Rietveld refinement by using the TOPAS software. The field emission scanning electron microscopy (FESEM) was used to examine the microstructure, and an energy-dispersive X-ray diffractometer (EDX) was used to estimate chemical compositions. At the Curie temperature, all the samples show a second-order magnetic phase transition. It has been discovered that when the amount of calcium doping increases, the Curie temperature increases. The effective magnetic moments (μ eff ) of HoMnO 3 , Ho 0.9 Ca 0.1 MnO 3 , Ho 0.8 Ca 0.2 MnO 3 , and Ho 0.7 Ca 0.3 MnO 3 are 10.71, 10.93, 11.17, and 11.54 μB, respectively, which are equivalent to the theoretical value of 11.45 μB. The magnetic entropy change (− ΔS M ) was calculated by using isothermal magnetization versus applied magnetic field. The calculated − ΔS M = 8.9 Jkg −1 K −1 value for undoped HoMnO 3 sample at 17.7 K, while with an increase in calcium doping, the − ΔS M value have been drop down from 3.3 to 2.2 Jkg −1 K −1 about 35 K temperature.
Avtor
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|
Vir: Osebne bibliografije
in: SICRIS
To gradivo vam je dostopno v celotnem besedilu. Če kljub temu želite naročiti gradivo, kliknite gumb Nadaljuj.