Journal ArticleDOI
Magnetocaloric effect and magnetic phase transition in Ho3Co
Jun Shen,Jianfeng Wu +1 more
Reads0
Chats0
TLDR
In this paper, the magnetic phase transition of Ho3Co compound was investigated and the maximal value of magnetic entropy change (ΔSM) was found to be −14.5 J/kg with a refrigerant capacity (RC) value of 440 J/ kg around Neel temperature.Abstract:
Magnetocaloric effect (MCE) and magnetic phase transition of Ho3Co compound have been investigated. The two successive magnetic transitions: spin–reorientation transition at TSR = 8.5 K and antiferromagnetic (AFM)–paramagnetic transition at the Neel temperature TN = 21 K are observed. The Ho3Co compound undergoes a field-induced metamagnetic transition from AFM to ferromagnetic states below TN, which leads to a large MCE. The maximal value of magnetic entropy change (ΔSM) is found to be −14.5 J/kg K with a refrigerant capacity (RC) value of 440 J/kg around TN for a field change of 0–5 T. The large ΔSM as well as considerable RC in Ho3Co is very useful for applying it to the magnetic refrigeration in low-temperature ranges.read more
Citations
More filters
Journal ArticleDOI
Magnetocaloric effect: From materials research to refrigeration devices
TL;DR: The magnetocaloric effect and its most straightforward application, magnetic refrigeration, are topics of current interest due to the potential improvement of energy efficiency of cooling and temperature control systems, in combination with other environmental benefits associated to a technology that does not rely on the compression/expansion of harmful gases.
Journal ArticleDOI
Magnetic properties and large magnetocaloric effect in Ho2Cu2In and Ho2Au2In compounds
TL;DR: In this paper, the magnetic and magnetocaloric properties of Ho2Cu2In and Ho2Au2In have been investigated at Curie temperatures of TC ~ 30 and 21 K, respectively.
Journal ArticleDOI
The magnetic properties and magnetocaloric effects in binary R-T (R = Pr, Gd, Tb, Dy, Ho, Er, Tm; T = Ga, Ni, Co, Cu) intermetallic compounds
Xin-Qi Zheng,Bao-gen Shen +1 more
Journal ArticleDOI
The physical properties of Gd3Ru: A real candidate for a practical cryogenic refrigerator
TL;DR: In this paper, the magnetization, specific heat, and the magnetocaloric effect (MCE) for Gd3Ru are presented as a function of temperature at different magnetic fields.
Journal ArticleDOI
Critical behavior of the ferromagnetic-paramagnetic phase transition in Fe90−xNixZr10 alloy ribbons
Tran Dang Thanh,Nguyen Huy Dan,The-Long Phan,Haridas Kumarakuru,E.J. Olivier,Johannes H. Neethling,Seong-Cho Yu +6 more
TL;DR: In this article, a detailed study on the critical behavior of the ferromagnetic-paramagnetic (FM-PM) phase transition in Fe90−xNixZr10 (x = 0 and 5) alloy ribbons is presented.
References
More filters
Journal ArticleDOI
Giant Magnetocaloric Effect in Gd 5 \(Si 2 Ge 2 \)
TL;DR: An extremely large magnetic entropy change has been discovered in magnetic materials when subjected to a change in the magnetic field as mentioned in this paper, which exceeds the reversible magnetocaloric effect in any known magnetic material by at least a factor of 2.
Journal ArticleDOI
Recent developments in magnetocaloric materials
TL;DR: The recent literature concerning the magnetocaloric effect (MCE) has been reviewed and correlations have been made comparing the behaviours of the different families of magnetic materials which exhibit large or unusual MCE values.
Journal ArticleDOI
Transition-metal-based magnetic refrigerants for room-temperature applications
TL;DR: The discovery of a large magnetic entropy change is reported in MnFeP0.45As0.55, a material that has a Curie temperature of about 300 K and which allows magnetic refrigeration at room temperature, attributed to a field-induced first-order phase transition enhancing the effect of the applied magnetic field.
Journal ArticleDOI
Inverse magnetocaloric effect in ferromagnetic Ni-Mn-Sn alloys.
Thorsten Krenke,Eyup Duman,Mehmet Acet,Eberhard F. Wassermann,Xavier Moya,Lluís Mañosa,Antoni Planes +6 more
TL;DR: The magnetocaloric effect (MCE) in paramagnetic materials has been widely used for attaining very low temperatures by applying a magnetic field isothermally and removing it adiabatically as discussed by the authors.
Journal ArticleDOI
Giant magnetocaloric effect of MnAs1−xSbx
Hirofumi Wada,Y. Tanabe +1 more
TL;DR: In this paper, a giant magnetocaloric effect was found in MnAs, which undergoes a first-order ferromagnetic to paramagnetic transition at 318 K, and the magnetic entropy change caused by a magnetic field of 5 T is as large as 30 J/K kg at the maximum value, which exceeds that of conventional magnetic refrigerant materials by a factor of 2-4.