dc.contributor.author | Abdul Rashid, Abdul Rahman | |
dc.contributor.author | Muhamad Faiz, Md Din | |
dc.contributor.author | Jianli, Wang | |
dc.contributor.author | Nur Sabrina, Suhaimi | |
dc.contributor.author | Nurul Hayati, Idris | |
dc.contributor.author | Norinsan Kamil, Othman | |
dc.contributor.author | Mohammad Ismail | |
dc.contributor.author | Mohd Taufik, Jusoh | |
dc.date.accessioned | 2022-05-09T03:39:02Z | |
dc.date.available | 2022-05-09T03:39:02Z | |
dc.date.issued | 2021-12 | |
dc.identifier.citation | International Journal of Nanoelectronics and Materials, vol.14 (Special Issue), 2021, pages 37-43 | en_US |
dc.identifier.issn | 1985-5761 (Printed) | |
dc.identifier.issn | 1997-4434 (Online) | |
dc.identifier.uri | http://dspace.unimap.edu.my:80/xmlui/handle/123456789/75090 | |
dc.description | Link to publisher's homepage at http://ijneam.unimap.edu.my | en_US |
dc.description.abstract | This work investigates the substitution of main-group element Al for Ge in the MnCoGe system to study the effect of magnetic phase transition and the magnetocaloric effect of the compounds. The Room temperature X-ray diffraction indicates clearly that most of the reflections can be identified with the orthorhombic structure (TiNiSi-type, space group Pnma) for MnCoGe and the hexagonal structure (Ni2In-type, space group P63/mmc) for MnCoAl. The substitution of Al for Ge in MnCoAl transmutes the crystal structure from TiNiSi-type to Ni2In-type structure. The magnetic measurement revealed the curie temperatures, Tc decreases from 340 K to 285 K with the substitution of Al with Ge. Besides, the Arrott plots (M2 against B/M) for the MnCoGe and MnCoAl, demonstrated characteristics of second-order transition for both samples. The calculated magnetic entropy change, -ΔSM values shows no difference for increasing and decreasing fields, which confirms that there is no hysteresis loss occurred near the magnetic transition. The -ΔSM maximal values is about 4.41 J·kg-1K-1 for MnCoGe and 3.73 J·kg-1K-1 for MnCoAl, for a field change of 0-5 T. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Universiti Malaysia Perlis (UniMAP) | en_US |
dc.subject.other | Magnetocaloric effect | en_US |
dc.subject.other | Magnetocaloric materials | en_US |
dc.subject.other | MnCoGe | en_US |
dc.subject.other | Magnetic refrigeration | en_US |
dc.subject.other | Magnetic entropy change | en_US |
dc.title | Magnetic properties and magnetocaloric effect of MnCoAl compound | en_US |
dc.type | Article | en_US |
dc.identifier.url | http://ijneam.unimap.edu.my | |
dc.contributor.url | faizmd@upnm.edu.my | en_US |