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The magnetocaloric effect (MCE) in single-crystalline Eu$_5$In$_2$Sb$_6$ was studied over broad temperature ranges and magnetic field intervals, with the magnetic field oriented parallel and perpendicular to the crystallographic…

We report on a novel class of nanocrystalline/amorphous Gd$_3$Ni/Gd$_{65}$Ni$_{35}$ composite microwires, which was created directly by melt-extraction through controlled solidification. X-ray diffraction (XRD) and transmission electron…

Materials Science · Physics 2020-07-28 Y. F. Wang , Y. Y. Yu , H. Belliveau , N. T. M. Duc , H. X. Shen , J. F. Sun , J. S. Liu , F. X. Qin , S. C. Yu , H. Srikanth , M. H. Phan

Magnetic refrigeration based on the magnetocaloric effect at room temperature is one of the most attractive alternative to the current gas compression/expansion method routinely employed. Nevertheless, in giant magnetocaloric materials,…

We study magnetic multilayers, incorporating dilute ferromagnetic spacers between strongly-ferromagnetic layers exhibiting a proximity-enhanced magnetocaloric effect. Using magnetometry and direct measurements of the adiabatic temperature…

Mesoscale and Nanoscale Physics · Physics 2022-12-21 M. Kulyk , M. Persson , D. Polishchuk , V. Korenivski

A single-phase polycrystalline La0.5Ba0.5CoO3-d sample was synthesized by microwave irradiation within 20 minutes of processing time and its structural, magnetic, electrical, and magnetostrictive properties were investigated. While the…

Materials Science · Physics 2024-06-12 M. Manikandan , A. Ghosh , R. Mahendiran

The magnetic and magnetocaloric properties of Ga1-xCMn3+x have been investigated. Reversible magnetocaloric effect (MCE) occurs near the Curie temperature TC. The magnetic entropy change decreases with increasing x, though TC and…

Strongly Correlated Electrons · Physics 2009-05-18 B. S. Wang , P. Tong , Y. P. Sun , X. B. Zhu , X. Luo , G. Li , W. H. Song , Z. R. Yang , J. M. Dai

The magnetocaloric effect in RE$_{11}$Co$_4$In$_9$ (RE = Tb, Er) has been studied by means of magnetometric measurements in the function of temperature and applied magnetic field. The maximum magnetic entropy change ($-\Delta…

Materials Science · Physics 2022-02-21 Stanisław Baran , Altifani Rizky Hayyu , Yuriy Tyvanchuk , Andrzej Szytuła

A coupling of the first-order paramagnetic-to-induced-ferromagnetic martensitic and the second-order antiferromagnetic-to-ferromagnetic metamagnetic transitions was found in MnNi0.8Fe0.2Ge alloy. Based on the coupling, a magneto-volume…

Materials Science · Physics 2014-08-26 E. K. Liu , Z. Y. Wei , Y. Li , G. D. Liu , H. Z. Luo , W. H. Wang , H. W. Zhang , G. H. Wu

The multicaloric effect is defined as the adiabatic temperature change in multiferroic materials induced by the application of an external electric or magnetic field, and it was first proposed in 2012. The multicaloric effects in…

Materials Science · Physics 2022-01-14 Melvin M. Vopson , Yuri K. Fetisov , Ian Hepburn

We have investigated the magnetocaloric effect in single and polycrystalline samples of quantum paraelectric EuTiO3 by magnetization and heat capacity measurements. Single crystalline EuTiO3 shows antiferromagnetic ordering due to Eu2+…

Materials Science · Physics 2016-03-30 A. Midya , P. Mandal , Km Rubi , Ruofan Chen , Jian-Sheng Wang , R. Mahendiran , G. Lorusso , M. Evangelisti

This study presents systematic investigations into the growth and physical properties of EuAl$_3$Si single crystals, encompassing magnetic, transport, and thermodynamic analyses. EuAl$_3$Si undergoes a ferromagnetic transition at $T_C$ = 15…

Strongly Correlated Electrons · Physics 2025-01-10 Hai Zeng , Shuo Zou , Zhou Wang , Ziyu Li , Kangjian Luo , Yongkang Luo

Cooling systems based on the caloric effects of ferroic materials show high potential for various cooling and heat-pumping applications due to their potentially high efficiencies and the lack of any environmentally hazardous refrigerants.…

Applied Physics · Physics 2021-08-30 Jan Kalizan , Jaka Tušek

Neutron diffraction and magnetization measurements of the magneto refrigerant Mn1+yFe1-yP1-xGex reveal that the ferromagnetic and paramagnetic phases correspond to two very distinct crystal structures, with the magnetic entropy change as a…

Magnetic and magnetocaloric properties of high-purity, giant magnetocaloric polycrystalline and single-crystalline Fe2P are investigated. Fe2P displays a moderate magnetic entropy change which spans over 70 K and the presence of strong…

Materials Science · Physics 2014-10-01 L. Caron , M. Hudl , V. Höglin , N. H. Dung , C. P. Gomez , M. Sahlberg , E. Brück , Y. Andersson , P. Nordblad

Neutron powder diffraction studies of the crystal and magnetic structures of the magnetocaloric compound Mn1.1Fe0.9(P0.8Ge0.2) have been carried out as a function of temperature, applied magnetic field, and pressure. The data reveal that…

Materials Science · Physics 2009-11-30 D. M. Liu , Q. Huang , M. Yue , J. W. Lynn , L. J. Liu , Y. Chen , Z. H. Wu , J. X. Zhang

The first order magneto-structural transition ($T_t\simeq95$ K) and magnetocaloric effect in MnNiGe$_{0.9}$Ga$_{0.1}$ are studied via powder x-ray diffraction and magnetization measurements. Temperature dependent x-ray diffraction…

Materials Science · Physics 2018-01-17 Pallab Bag , R. Nath

We report the magnetic and magnetocaloric properties of HoCoSi, which shows second order ferro-para magnetic transition at 14 K. It is found to exhibit a large magnetic entropy change of 13 J/kg K for a field change of 20 kOe, which…

Strongly Correlated Electrons · Physics 2019-09-19 Sachin Gupta , K. G. Suresh

The magnetic $H$-$T$ phase diagram and magnetocaloric effect in the recently discovered high-temperature heavy-fermion compound YbCoC$_2$ have been studied. With the increase in the external magnetic field YbCoC$_2$ experiences the…

Strongly Correlated Electrons · Physics 2023-03-15 D. A. Salamatin , V. N. Krasnorussky , A. V. Semeno , A. V. Bokov , A. Velichkov , Z. Surowiec , A. V. Tsvyashchenko

We report the discovery of serendipitous electrocaloric effects in commercial multilayer capacitors based on ferroelectric BaTiO3. Direct thermometry records ~0.5 K changes due to 300 kV cm-1, over a wide range of temperatures near and…

Materials Science · Physics 2015-05-14 S. Kar-Narayan , N. D. Mathur

Magnetoresistance and magnetocaloric properties of polycrystalline HoRhGe have been studied. This compound orders antiferromagnetically with a Neel temperature (TN) of 5.5 K and undergoes a first order metamagnetic transition at 2 K. It…

Strongly Correlated Electrons · Physics 2019-09-19 Sachin B. Gupta , K. G. Suresh , A. K. Nigam