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La(Fe,Si)$_{13}$-based compounds are considered to be very promising magnetocaloric materials for magnetic refrigeration applications. Many studies have focused on this material family but only in bulk form. In this paper, we report the…

Materials Science · Physics 2020-06-03 N. H. Dung , N. B. Doan , P. De Rango , L. Ranno , K. G. Sandeman , N. M. Dempsey

In this paper, we mainly focus on the magnetic and magnetocaloric features of La2-xDyxNiMnO6 double perovskites. Their magnetocaloric properties are investigated in terms of both entropy and adiabatic temperature changes. In contrast to…

In this work, we investigate the magnetic structures of $(Fe_{1-x}Mn_x)_2AlB_2$ solid-solution quaternaries in the $x = 0$ to $1$ range using x-ray and neutron diffraction, magnetization measurements, and mean-field theory calculations.…

Materials Science · Physics 2020-08-10 D. Potashnikov , E. N. Caspi , A. Pesach , S. Kota , M. Sokol , L. A. Hanner , M. W. Barsoum , H. A. Evans , A. Eyal , A. Keren , O. Rivin

The surprising discovery of superconductivity in layered iron-based materials, with transition temperatures climbing as high as 55 K, has lead to thousands of publications on this subject over the past two years. While there is general…

Superconductivity · Physics 2010-09-16 Johnpierre Paglione , Richard L. Greene

In this study, the temperature dependencies of magnetic response functions of the anhydrous dihalides of iron-group elements are examined in the neighborhood of multi-critical points (tricritical, critical end point, double critical end…

Statistical Mechanics · Physics 2015-05-28 Gulpinar Gul , Vatansever Erol

Rare-earth (RE) based frustrated magnets have attracted great attention as excellent candidates for magnetic refrigeration at sub-Kelvin temperatures, while the experimental identification on systems exhibiting both large volumetric cooling…

We have investigated the magnetocaloric effects in antiferromagnets and compared them with those in ferromagnets using Monte Carlo simulations. In antiferromagnets, the magnetic entropy reaches a maximum value at a finite magnetic field…

Materials Science · Physics 2014-03-20 Ryo Tamura , Takahisa Ohno , Hideaki Kitazawa

In recent years, solid state magnetic cooling based on magnetocaloric effect (MCE) have drawn attention worldwide as a promising alternative potential candidate to the conventional gas compression-expansion cooling technique. In this…

Materials Science · Physics 2024-10-23 Vinod Kumar Dwivedi

Our Introduction starts with a short general review of the magnetic and structural properties of the Heusler compounds which are under discussion in this book. Then, more specifically, we come to the discussion of our experimental results…

Other Condensed Matter · Physics 2007-05-23 K. Westerholt , A. Bergmann , J. Grabis , A. Nefedov , H. Zabel

From magnetic susceptibility, dielectric permittivity, electric polarization and specific heat measurements, we discover spin-induced ferroelectricity and magnetoelectric coupling in Mn3TeO6 and observe two successive magnetic transitions…

Materials Science · Physics 2015-12-01 L. Zhao , Z. Hu , C. Y. Kuo , T. -W. Pi , M. -K. Wu , L. H. Tjeng , A. C. Komarek

We discuss the magnetocaloric properties of gadolinium containing magnetic molecules which potentially could be used for sub-Kelvin cooling. We show that a degeneracy of a singlet ground state could be advantageous in order to support…

Strongly Correlated Electrons · Physics 2014-09-17 J. Schnack , C. Heesing

Rare earth/transition metal (RE/TM) multilayers with perpendicular magnetic anisotropy are key ingredients for the development of spintronic applications. Their compensation temperature depends on the ratio of the thicknesses of rare earth…

A remarkable decrease of the structural transition temperature of MnNiSi from 1200 K to <300 K by chemically alloying it with MnFeGe results in a coupling of the magnetic and structural transitions, leading to a large magnetocaloric effect…

Magnetic refrigeration can provide an environmentally friendly technology to reduce significantly the energy consumption of cooling devices. To retain the sustainability of the device, all parts must be made from abundant materials,…

Certain two-dimensional (2D) materials exhibit intriguing properties such as valley polarization, ferroelectricity, superconductivity and charge-density waves. Many of these materials can be manually assembled into atomic-scale multilayer…

Materials Science · Physics 2019-07-24 Jiangtan Yuan , Andrew Balk , Hua Guo , Sahil Patel , Xuanhan Zhao , Qiyi Fang , Douglas Natelson , Scott Crooker , Jun Lou

We study the thermal structure and evolution of magnetars as cooling neutron stars with a phenomenological heat source in an internal layer. We focus on the effect of magnetized (B > 10^{14} G) non-accreted and accreted outermost envelopes…

Solar and Stellar Astrophysics · Physics 2009-05-20 A. D. Kaminker , A. Y. Potekhin , D. G. Yakovlev , G. Chabrier

Mechanocaloric materials experience a change in temperature when a mechanical stress is adiabatically applied on them. Thus far, only ferroelectrics and superelastic metallic alloys have been considered as potential mechanocaloric compounds…

Materials Science · Physics 2016-05-20 Claudio Cazorla , Daniel Errandonea

The periodic response of magnetoresistance to an externally tunable parameter, such as magnetic field or chemical composition, in the bulk or an artificially designed material has been exploited for technological applications as well as to…

Materials Science · Physics 2012-09-04 S. Dickert , D. K. Singh , R. Thantirige , M. T. Tuominen

This research paper investigates new and first insights into the magnetic and magnetocaloric properties of one-dimensional (1D) cobalt ferrite CoFe2O4 (CFO) nanofibers elaborated by sol gel based electrospinning technique, particularly…

This is a comment on 'Table-like magnetocaloric effect and enhanced refrigerant capacity in Eu8Ga16Ge30-EuO composite materials', published few years ago. Refrigerant Capacity (RC) and Relative Cooling Power (RCP) are properties that…

Applied Physics · Physics 2017-05-03 A. M. G. Carvalho