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The excellent magnetocaloric effect of a dense inorganic framework, orthorhombic Gd(OH)CO3, is evaluated by isothermal magnetization and heat capacity measurements. The large -{\Delta}Sm, both in gravimetric and volumetric units, place it…

In an effort to understand the impact of nanostructuring on the magnetocaloric effect, we have grown and studied gadolinium in MgO/W(50 $\textrm{\AA}$)/[Gd(400 $\textrm{\AA}$)/W(50 $\textrm{\AA}$)]$_8$ heterostructures. The entropy change…

介观与纳米尺度物理 · 物理学 2011-12-19 Casey W. Miller , D. V. Williams , N. S. Bingham , H. Srikanth

The crystalline structure, magnetism, and magnetocaloric effect of a GdCrO$_3$ single crystal grown with the laser-diode-heated floating-zone technique have been studied. The GdCrO$_3$ single crystal crystallizes into an orthorhombic…

Gadolinium stand as the favored choice among magnetic refrigerant materials for numerous active magnetic regenerator (AMR) prototypes due to its remarkable ability to exhibit a substantial change in magnetic entropy. This unique…

材料科学 · 物理学 2024-02-16 A. Endichi , H. Bouhani , O. Baggari , H. Zaari , O. Mounkachi , A. El Kenz , A. Benyoussef

We study structural, magnetic and magneto-thermal properties of GdRhIn compound. The room temperature X-ray diffraction measurements show hexagonal crystal structure. Temperature and field dependence of magnetization suggest two magnetic…

材料科学 · 物理学 2024-09-04 Ravinder Kumar , Arrab Ali Maz , Satyendra Kumar Mishra , Sachin Gupta

The magnetic susceptibility and isothermal magnetization for GdF3 were measured, and the isothermal entropy change was evaluated up to 9 T. Combining the large isotropic spin of Gd3+, the dense structure and the weak ferromagnetic…

材料科学 · 物理学 2015-01-20 Yan-Cong Chen , Jun-Liang Liu , Ming-Liang Tong

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 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…

We synthesize the high-quality Gd$_3$BWO$_9$ single crystal and investigate its lowtemperature magnetic and thermodynamic properties. Below $T\rm_{N}$ = 1.08 K, the anisotropic behavior of magnetic susceptibilities reveals that the…

We report on structural, magnetic, electrical, and thermodynamic properties of Gd-doped LaMnO3 single crystals for Gd doping levels 0 <= x <= 1. At room temperature, for all doping levels the orthorhombic O' phase is indicative for a strong…

We report a large entropy change (DeltaS) below 300 K, peaking near TC= 220 K, due to isothermal change of magnetic field, for Gd4Co3, with a refrigeration capacity higher than that of Gd. Notably, the isothermal magnetization is…

强关联电子 · 物理学 2008-06-12 Niharika Mohapatra , Kartik K Iyer , E. V. Sampathkumaran

The lanthanide orthoborates, $Ln$BO$_3$, $Ln$ = Gd, Tb, Dy, Ho, Er, Yb crystallise in a monoclinic structure with the magnetic $Ln^{3+}$ forming an edge-sharing triangular lattice. The triangles are scalene, however all deviations from the…

材料科学 · 物理学 2017-10-20 P Mukherjee , Y Wu , G I Lampronti , S E Dutton

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

Rare-earth-based triangular lattice antiferromagnets, with strong quantum fluctuations and weak magnetic interactions, can often retain large magnetic entropy down to very low temperatures, making them excellent candidates for magnetic…

强关联电子 · 物理学 2025-04-14 Weijie Lin , Nan Zhao , Zhaoyi Li , Weiran An , Ruixin Guo , Jianqiao Wang , Changzhao Pan , Bo Wen , Jieming Sheng , Liusuo Wu , Shu Guo

The magnetic rare earth element gadolinium (Gd) was doped into thin films of amorphous carbon (hydrogenated \textit{a}-C:H, or hydrogen-free \textit{a}-C) using magnetron co-sputtering. The Gd acted as a magnetic as well as an electrical…

材料科学 · 物理学 2009-11-13 L. Zeng , E. Helgren , F. Hellman , R. Islam , D. J. Smith , J. W. Ager

Magnetic properties of a series of (La0.7Sr0.3MnO3/SrRuO3) superlattices, where the SrRuO3 layer thickness is varying, are examined. A room-temperature magnetocaloric effect is obtained owing to the finite size effect which reduces the TC…

材料科学 · 物理学 2011-01-10 Q. Zhang , S. Thota , F. Guillou , P. Padhan , V. Hardy , A. Wahl , W. Prellier

Bulk magnetic and thermodynamic measurements, along with mean-field calculations, were conducted on the ferromagnetic K3Gd5(PO4)6 powders. No magnetic ordering was observed until 2 K, while the application of an external field B > 1 T…

The robustness of spin liquids with respect to small perturbations, and the way magnetic frustration can be lifted by slight changes in the balance between competing magnetic interactions remains a rich and open issue. We address this…

强关联电子 · 物理学 2018-01-10 O. Florea , E. Lhotel , H. Jacobsen , C. S. Knee , P. P. Deen

The Gd3Ga5-xAlxO12 (0 < x < 5) solid solution has been prepared using ceramic synthesis routes and the structural and magnetic properties investigated using X-ray diffraction, magnetic susceptibility, chi, and isothermal magnetisation,…

材料科学 · 物理学 2014-03-06 A. C. Sackville Hamilton , G. I. Lampronti , S. E. Rowley , S. E. Dutton

The magnetic and magnetocaloric (MCE) properties were studied in a stuffed honeycomb antiferromagnet GdInO3 polycrystalline. No long-range magnetic ordering was observed with only a sharp upturn in the temperature dependent magnetization…

强关联电子 · 物理学 2021-12-13 Yao-Dong Wu , Wei-Wei Duan , Qiu-Yue Li , Yong-Liang Qin , Zhen-Fa Zi , Jin Tang
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