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相关论文: Room Temperature Magnetocaloric effect in CrTe1-xS…

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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

We investigate the structural and critical properties of CrTe1-xSbx with 0.0 \leq x \leq 0.2. The XRD patterns revealed that Sb-substitution resulted in a pure NiAs-hexagonal structure with P63/mmc (194) space-group. Lattice refinement of…

强关联电子 · 物理学 2021-05-11 M. Kh. Hamad , Yazan Maswadeh , E. Martinez-Teran , A. A. El-Gendy , Kh. A. Ziq

The effect of Co on the structural, magnetic and magnetocaloric effect (MCE) of Ni50-xCoxMn38Sb12 (x=0,2,3,4,5) Heusler alloys was studied. Using x-ray diffraction, we show the evolution of the martensitic phase from the austenite phase.…

强关联电子 · 物理学 2010-06-02 Ajaya K Nayak , K G Suresh , A K Nigam

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…

强关联电子 · 物理学 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 (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…

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

La-Fe-Si-based alloys are among the most application-ready magnetocaloric materials for room-temperature magnetic refrigeration. Powder metallurgy methods have been previously demonstrated to successfully produce structures with sub-mm…

In this paper we explore the magnetocaloric effect (MCE) of chromium-doped elpasolite Cs$_2$NaAl$_{1-x}$Cr$_x$F$_6$ (x = 0.01 and 0.62) single crystals. Our magnetization and heat capacity data show the magnetocaloric potentials to be…

The effects of sintering temperature (Ts) and chemical substitution on the structural and magnetic properties of manganite compounds La1-xSrxMn1-yFeyO3 (0.025 <= x <= 0.7; y= 0.01,0.15) are explored in a search to optimize their…

材料科学 · 物理学 2024-04-30 N. Brahiti , M. Balli , M. Abbasi Eskandari , A. El Boukili , P. Fournier

Two-dimensional magnets could potentially revolutionize information technology, but their potential application to cooling technology and magnetocaloric effect (MCE) in a material down to the monolayer limit remain unexplored. Herein, we…

材料科学 · 物理学 2023-03-29 Weiwei He , Yan Yin , Qihua Gong , Richard F. L. Evans , Oliver Gutfleisch , Baixiang Xu , Min Yi , Wanlin Guo

Magnetocaloric effect (MCE) was investigated in the single crystal of CsGd(MoO$_4$)$_2$ in the temperature range from 2 to 30 K and fields up to 5 T applied along the easy and hard magnetic axis. The analysis of specific heat and…

其他凝聚态物理 · 物理学 2017-09-05 V. Tkáč , A. Orendáčová , R. Tarasenko , M. Orendáč , A. Feher

Off-stoichiometric Ni$_2$MnIn Heusler alloys have drawn recent attention due to their large magnetocaloric entropy change associated with the first-order magneto-structural transition. Here we present crystal structural, calorimetric and…

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

We report a giant magnetocaloric effect near room temperature in an off-stoichiometric Mn-Co-Ge alloy, across the magnetostructural transition. The isothermal entropy change accompanying this transition has a peak value of nearly 40 J/kg-K…

材料科学 · 物理学 2016-12-21 V. K. Sharma , M. A. Manekar , Himanshu Srivastava , S. B. Roy

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…

This work investigates the magnetocaloric effect (MCE) in LaFe_{11.6}Si_{1.4} and LaFe_{11.78}Mn_{0.41}Si_{1.32}H_{1.6} alloys under adiabatic {\Delta}T and isothermal {\Delta}Q conditions in a magnetic field of {\mu}_{0}H = 1.8 T. The…

Transition metal telluride compositions are explored extensively for their unique magnetic behavior. Since chromium telluride (Cr2Te3) exhibits a near-room-temperature phase transition, the material can be effectively used in applications…

We present a thorough study on the magnetoanisotropic properties and magnetocaloric effect in the layered ferromagnetic Cr$_4$Te$_5$ single crystals by performing the critical behaviour analysis of magnetization isotherms. The critical…

材料科学 · 物理学 2022-09-20 Shubham Purwar , Susmita Changdar , Susanta Ghosh , S. Thirupathaiah

The large magnetocaloric effect (MCE), which accompanies the first order ferromagnetic/anti-ferromagnetic transition in CsCl-ordered Fe-Rh alloys, has been investigated by measurements in slowly cycled magnetic fields of up to 2 T in…

材料科学 · 物理学 2016-05-12 V. I. Zverev , A. M. Saletskij , R. R. Gimaev , A. M. Tishin , T. Miyanaga , J. B. Staunton

Magneto-resistive and magneto-caloric properties of polycrystalline Pr2/3Sr1/3MnO3 have been studied as a function of sintering temperature (Ts) between 1260-1450{\deg}C. Reitveld refinement of their X-ray diffraction (XRD) patterns…

强关联电子 · 物理学 2013-07-18 Ramesh Chandra Bhatt , Shiva Kumar Singh , P. C. Srivastava , S. K. Agarwal , V. P. S. Awana
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