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相关论文: Magnetocaloric materials: the search for new syste…

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We analyze atom-surface magnetic interactions on atom chips where the magnetic trapping potentials are produced by current carrying wires made of electrically anisotropic materials. We discuss a theory for time dependent fluctuations of the…

其他凝聚态物理 · 物理学 2008-07-03 T. David , Y. Japha , V. Dikovsky , R. Salem , C. Henkel , R. Folman

Defects in the atomic lattice of solids are sometimes desired. For example, atomic vacancies, single ones or more elaborated defective structures, can generate localized magnetic moments in a non magnetic crystalline lattice. Increasing…

超导电性 · 物理学 2019-02-21 Pablo D. Esquinazi

We investigate the magnetocaloric effect (MCE), relative cooling power (RCP) and crystalline structure in Sb substituted CrTe_{1-x}Sb_{x} (0 \leq x \leq 0.2) alloy. The Rietveld refinement of the XRD pattern of CrTe1-xSbx showed the…

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…

应用物理 · 物理学 2017-05-03 A. M. G. Carvalho

We study, using simulations the dynamical properties of complex ferromagnetic granular materials. The system of grains is modeled by a disordered two-dimensional lattice in which the grains are embedded, while the magnitude and direction of…

介观与纳米尺度物理 · 物理学 2011-11-10 Ran Itay , Shlomo Havlin , Richard Berkovits

Atomic-scale magnetic nanostructures are promising candidates for future information processing devices. Utilizing external electric field to manipulate their magnetic properties is an especially thrilling project. Here, by careful…

材料科学 · 物理学 2015-08-18 Wanjiao Zhu , Hang-Chen Ding , Wen-Yi Tong , Shi-Jing Gong , Xiangang Wan , Chun-Gang Duan

In low-dimensional magnets, thermal agitation and spatial disorders generate strong spin fluctuations that suppress the long-range magnetic ordering. We develop an analytical equation for the equilibrium magnetization of two-dimensional…

介观与纳米尺度物理 · 物理学 2021-12-08 Essa M. Ibrahim , Ping Tang , Shufeng Zhang

We revisit the one-dimensional ferromagnetic Ising spin-chain with a finite number of spins and periodic boundaries and derive analytically and verify numerically its various stationary and dynamical properties at different temperatures. In…

The structural and magnetic properties of Mn$_2$FeSbO$_6$ single-crystalline mineral and ceramic samples synthesized under thermobaric treatment have been investigated, and compared to theoretical predictions based on first-principles…

强关联电子 · 物理学 2011-05-20 R. Mathieu , S. A. Ivanov , G. V. Bazuev , M. Hudl , P. Lazor , I. V. Solovyev , P. Nordblad

The ability to control the properties of twisted bilayer transition metal dichalcogenides in situ makes them an ideal platform for investigating the interplay of strong correlations and geometric frustration. Of particular interest are the…

Finding the true magnetic structure at given external conditions is crucial for describing magnetic materials and predicting their properties. This is especially important for high-throughput screening of potentially good magnets that…

材料科学 · 物理学 2021-04-07 Olga Yu. Vekilova

Nanomagnetism concerns the engineering of magnetic interactions in heterostructures that consist of layers of magnetic and non-magnetic materials. Mostly, these interactions are dominated by the minimization of energy. Here, we propose an…

介观与纳米尺度物理 · 物理学 2025-05-21 William Huddie , Laura Filion , Marjolein Dijkstra , Rembert Duine

At sufficiently low temperatures magnetic materials often enter a correlated phase hosting collective, coherent magnetic excitations such as magnons or triplons. Drawing on the enormous progress on topological materials of the last few…

强关联电子 · 物理学 2022-10-05 Paul McClarty

The magneticaloric properties of the Ising nanotube constituted by arbitrary core spin values $S_c$ and the shell spin values $S_s$ have been investigated by mean field approximation. During this investigation, several quantities have been…

统计力学 · 物理学 2020-12-04 Ümit Akıncı

We investigate the magnetocaloric effect obtained by the rotation of a magnetic field applied to an exchange-coupled multilayer system composed of two different ferromagnetic (FM) materials. We specifically consider a system in which the…

材料科学 · 物理学 2024-04-12 Vittorio Basso , Carlo P. Sasso , Martino LoBue , Karl G. Sandeman

Materials with large magnetocrystalline anisotropy and strong electric field effects are highly needed to develop new types of memory devices based on electric field control of spin orientations. Instead of using modified transition metal…

材料科学 · 物理学 2017-08-02 Xuelei Sui , Tao Hu , Jianfeng Wang , Bing-Lin Gu , Wenhui Duan , Mao-sheng Miao

Processing magnetocaloric materials into magnetic refrigerant particles is an essential issue in developing high-performance magnetic refrigerators. Here, we succeed in stably producing magnetocaloric particles of the promising material…

The magneto-electrocaloric effect which can be defined as the coupling between magnetocaloric and electrocaloric effects attracts currently considerable attention due to the advantages provided by the caloric effect in designing solid-state…

We report the magnetic, thermal, magnetocaloric and transport properties of polycrystalline NdCuSi. The compound shows a weak antiferromagnetic ordering, as confirmed by different measurements. Arrott plots indicate that the magnetic phase…

强关联电子 · 物理学 2019-09-19 Sachin Gupta , K. G. Suresh1 , A. K. Nigam

The usefulness of modeling magnetocaloric materials expands from the understanding of their behavior to the prediction of new materials, playing a fundamental role in the optimization of their performance. In contrast with other areas of…