中文
相关论文

相关论文: Strain energy enhanced room-temperature magnetocal…

200 篇论文

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…

Solid state-refrigerants have generated worldwide interest owing to their growing potential for use in efficient and green cooling devices. Caloric effects could be obtained by manipulating their degrees of freedom such as magnetization,…

材料科学 · 物理学 2016-10-10 M. Balli , S. Jandl , P. Fournier , D. Z. Dimitrov

We have investigated magnetization(M), magnetocaloric effect(MCE) and magnetothermopower(MTEP) in polycrystalline Pr0.6Sr0.4MnO3, which shows a second-order paramagnetic to ferromagnetic transition near room temperature (TC = 305 K).…

强关联电子 · 物理学 2012-10-19 D. V. Maheshwar Repaka , T. S. Tripathi , M. Aparnadevi , R. Mahendiran

In this manuscript, we propose a method to prepare small flakes of DyCu2. On top of that we also report on the magnetocaloric effect and nature of magnetic transition of a strongly anisotropic DyCu2 in its low dimension. Magnetization…

无序系统与神经网络 · 物理学 2016-06-07 M. Venkat Narayana Ganesh Kotnana , S. Narayana Jammalamadaka

We investigated magnetic and magnetocaloric properties in Sm1-xSrxMnO3 (x = 0.30-0.5). We report a magnetic field driven first-order metamagnetic transition in the paramagnetic state in x = 0.4 and 0.5 and a second-order transition in x =…

材料科学 · 物理学 2009-11-13 A. Rebello , R. Mahendiran

Magnetocaloric materials, which exploit reversible temperature changes induced by magnetic field variations, are promising for advancing energy-efficient cooling technologies. The potential integration of two-dimensional materials into…

材料科学 · 物理学 2024-05-09 Lokanath Patra , Yujie Quan , Bolin Liao

Materials based on the Sm-Co system exhibit remarkable magnetic performance due to their high Curie temperature, large saturation magnetization, and strong magnetic anisotropy, which are the result of the electronic structure in Co and Sm…

材料科学 · 物理学 2018-07-25 S. Y. Jekal , J. F. Loeffler , M. Charilaou

In the present work, two successive magneto-structural transformations (MSTs) consisting of martensitic and intermartensitic transitions have been reported in polycrystalline Ni55.8Mn18.1Ga26.1 Heusler alloy. Benefiting from the additional…

材料科学 · 物理学 2015-09-25 Z. Li , K. Xu , Y. L. Zhang , C. Tao , D. Zheng , C. Jing

The search for energy-efficient and environmentally friendly cooling technologies is a key driver for the development of magnetic refrigeration based on the magnetocaloric effect (MCE). This phenomenon arises from the interplay between…

Magnetic refrigeration based on the magnetocaloric effect (MCE) of materials is a potential technique that has prominet advantages over the currently used gas compression-expansion technique in the sense of its high efficiency and…

材料科学 · 物理学 2023-10-18 B. G. Shen , J. R. Sun , F. X. Hu , H. W. Zhang , Z. H. Cheng

Designing the high performance magneto or elastocaloric effect in NiMnIn alloys with spin-lattice coupling in a deep freezing temperature range of 200 K to 255 K is challenging due to the limited lattice entropy change and large negative…

We report a detailed study of the magnetocaloric effect in heterostructures of La2NiMnO6 and La2/3Sr1/3MnO3. The shape, width and magnitude of the temperature dependence of the magnetic entropy change ($\Delta S_{m}$) for these multilayer…

应用物理 · 物理学 2022-11-08 Mohammad Abbasi Eskandari , Seyedeh Sara Ghotb , Mohamed balli , Patrick Fournier

Polycrystalline CrTe1-xSex samples were prepared using the conventional solid-state reaction technique and characterized by x-rad diffraction, temperature- and field- dependent magnetization for possible use in magnetocaloric cooling.…

强关联电子 · 物理学 2022-11-15 Morad Kh. Hamad , I. C. Nlebedim , Yazan Maswadec , R. Hamad , Kh. A. Ziq

Heat-to-charge conversion efficiency of thermoelectric materials is closely linked to the entropy per charge carrier. Thus, magnetic materials are promising building blocks for highly efficient energy harvesters, as their carrier entropy is…

In this paper, we report on the magnetic and magnetocaloric features of Dy-substituted YMn$_2$O$_5$ (Y$_{1-x}$Dy$_x$Mn$_2$O$_5$) with $x=$ 0.6, 0.8, and 1 series elaborated by sol-gel method. X-ray diffraction and Raman measurements attest…

We report electrical resistivity, magnetic and magnetocaloric properties in Sm0.7-xLaxSr0.3MnO3 series for x= 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.65, and 0.7. All the compounds show second order paramagnetic to ferromagnetic transition at T…

材料科学 · 物理学 2015-06-11 M. Aparnadevi , R. Mahendiran

Multiferroic materials have undergone extensive research in the past two decades in an effort to produce a sizable room-temperature magneto-electric (ME) effect in either exclusive or composite materials for use in a variety of electronic…

Magnetic entropy and adiabatic temperature changes in and above the room-temperature region has been measured for La0.7Sr0.3Mn1-xM'xO3 (M' = Al, Ti) by means of magnetization and heat capacity measurements in magnetic fields up to 6 T. The…

材料科学 · 物理学 2007-08-17 D. N. H. Nam , N. V. Dai , L. V. Hong , N. X. Phuc , S. C. Yu , M. Tachibana , E. Takayama-Muromachi

The magnetic and magnetocaloric properties of polycrystalline La0.70(Ca0.30-xSrx)MnO3:Ag 10% manganite have been investigated. All the compositions are crystallized in single phase orthorhombic Pbnm space group. Both, the Insulator-Metal…

强关联电子 · 物理学 2015-06-05 R. Jha , Shiva Kumar Singh , Anuj Kumar , V. P. S. Awana

The magnetic entropy change (\DeltaS), a measure of the magnetocaloric effect, in Tb5Si3, a compound exhibiting unusual positive magnetoresistance following a magnetic-field-induced transition below magnetic transition temperature (~ 69 K),…

强关联电子 · 物理学 2015-06-03 Niharika Mohapatraa , Sitikantha D. Das , K. Mukherjee , E. V. Sampathkumaran
‹ 上一页 1 2 3 10 下一页 ›