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We undertook investigations in polycrystalline R(x)R'(1-x)Al(2) alloys, in particular, explored the stoichiometries, Nd(0.8)Gd(0.2)Al(2) and Nd(0.8)Tb(0.2)Al(2), to study the magnetic compensation behavior in them in the context of…

Strongly Correlated Electrons · Physics 2010-09-07 P. D. Kulkarni , A. Thamizhavel , S. Ramakrishnan , A. K. Grover

The behaviour of electrical resistivity ($\rho$) and magnetoresistance in the vicinity of respective magnetic ordering temperatures in a number of Gd alloys is reported. In some compounds, e.g., GdNi_2Sn_2 and GdPt_2Ge_2, there is an…

Strongly Correlated Electrons · Physics 2007-05-23 R. Mallik , E. V. Sampathkumaran

The magnetization compensation phenomenon is observed for Sm1-xNdxScGe at x = 0.09 at a temperature near 90 K in a small applied magnetic field, which establishes the spin surplus status of magnetic moment of Sm in the host matrix. We also…

Materials Science · Physics 2014-03-11 P. D. Kulkarni , S. K. Dhar , P. Manfrinetti , A. K. Grover

Results on electrical resistivity, magnetoresistance, magnetic Results on electrical resistivity, magnetoresistance, magnetic susceptibility, heat capacity and Gd Mossbauer measurements on a Gd-based intermetallic compound,…

Strongly Correlated Electrons · Physics 2009-10-31 R. Mallik , E. V. Sampathkumaran , M. Strecker , G. Wortmann

Using a combination of magnetometry and magnetotransport techniques, we studied temperature and magnetic field behavior of magnetization in Py/Gd heterostructures. It was shown quantitatively that proximity with Py enhances magnetic order…

Mesoscale and Nanoscale Physics · Physics 2017-08-02 Pavel N. Lapa , Junjia Ding , John E. Pearson , Valentine Novosad , J. S. Jiang , Axel Hoffmann

Ferrimagnetic GdCo5-xCux alloys exhibiting the effect of Gd- and 3d-sublattice magnetization compensation at defined temperatures were studied with respect to their use as thermo-reversible permanent magnets (PM). Coercive fields…

Non-resonant ferromagnetic x-ray diffraction has been used to separate the spin and orbital contribution to the magnetization density of the proposed zero-moment ferromagnet $Sm_{0.982}Gd_{0.018} Al_{2}$. The alignment of the spin and…

Condensed Matter · Physics 2009-11-07 J. W. Taylor , J. A. Duffy , A. M. Bebb , M. R. Lees , L. Bouchenoire , S. D. Brown , M. J. Cooper

We report the observation of a compensation point in the temperature dependence of magnetization data of polycrystalline Sm2Al. Magnetization measurements show that this compound magnetically orders at about 150 K. Below this temperature,…

Materials Science · Physics 2007-05-23 Pramod Kumar , K. G. Suresh , A. K. Nigam

We report a systematic study of current-induced perpendicular magnetization switching in W/Co$_{x}$Tb$_{1-x}$/Al thin films with strong perpendicular magnetic anisotropy. Various Co$_{x}$Tb$_{1-x}$ ferrimagnetic alloys with different…

We study the magnetocaloric effect and critical behavior of Co$_2$Cr$_{1-x}$Mn$_x$Al ($x=$ 0.25, 0.5, 0.75) Heusler alloys across the ferromagnetic (FM) transition (T$_{\rm C}$). The Rietveld refinement of x-ray diffraction patterns exhibit…

Materials Science · Physics 2020-01-08 Priyanka Nehla , V. K. Anand , Bastian Klemke , Bella Lake , R. S. Dhaka

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…

Mesoscale and Nanoscale Physics · Physics 2021-12-08 Essa M. Ibrahim , Ping Tang , Shufeng Zhang

The metamagnetic transition between the antiferromagnetic and paramagnetic state in UIrGe has been studied at various temperatures by magnetization, heat capacity and magnetocaloric-effect measurements on a single crystal in static and…

We have studied the influence of a magnetic field on the thermodynamic properties of Ca$_{2-x}$Sr$_{x}$RuO$_4$ in the intermediate metallic region with tilt and rotational distortions ($0.2\leq x \leq 0.5$). We find strong and anisotropic…

Strongly Correlated Electrons · Physics 2009-11-11 J. Baier , T. Zabel , M. Kriener , P. Steffens , O. Schumann , O. Friedt , A. Freimuth , A. Revcolevschi , S. Nakatsuji , Y. Maeno , T. Lorenz , M. Braden

The magnetic, transport, and structural properties of (Ga,Cr)As are reported. Zincblende Ga$_{1-x}$Cr$_{x}$As was grown by low-temperature molecular beam epitaxy (MBE). At low concentrations, x$\sim$0.1, the materials exhibit unusual…

Materials Science · Physics 2009-11-07 A. Dakhama , B. Lakshmi , D. Heiman

The magnetocaloric effect in alternating magnetic fields has been investigated in Pr1-xAgxMnO3 manganites with x=0.05-0.25. The stepwise reversal of the sign of the magnetocaloric effect has been revealed in a weakly doped sample (x=0.05)…

Materials Science · Physics 2015-03-17 A. G. Gamzatov , A. M. Aliev , A. B. Batdalov , H. Ahmadvand , H. Salamati , P. Kameli

A study on temperature dependent magnetic properties of single phase orthorhombic perovskites system associated with space group Pbnm compounds Pr1-x(Gd/Nd)xMnO3 (x=0.3, 0.5, 0.7) was carried out. A magnetization reversal is observed below…

Materials Science · Physics 2016-06-13 Sanjay Biswas , Sudipta Pal

We report the compositional and temperature dependence of magnetic compensation in amorphous GdFeCo films. Magnetic compensation is attributed to the competition between antiferromagnetic coupling of rare-earth with transition-metal (TM)…

Materials Science · Physics 2015-06-16 Manli Ding , S. Joseph Poon

Crystal structure, thermal and magnetic properties were systematically studied in the Y$_{1-x}$Pr$_x$CrO$_3$ with $0 \leq x \leq 0.3$ compositions. Magnetic susceptibility and specific heat measurements show an increase of the…

Materials Science · Physics 2018-02-08 A. Durán , R. Escamilla , R. Escudero , F. Morales , E. Verdín

The magnetic compensation and magnetostriction properties in Fe doped CoCr2O4 samples have been investigated. Structural and magnetic measurements imply that the doped Fe3+ ions initially occupy the B1(Cr) sites when x<0.1, and then mainly…

Materials Science · Physics 2012-11-30 Hongguo Zhang , Wenghong Wang , Enke Liu , Xiaodan Tang , Guijiang Li , Hongwei Zhang , Guangheng Wu

The direct electrical method was used to study the behavior of the spin Hall effect in a magnetic field perpendicular to the injection current in aluminum samples with resistivities that differed by two orders of magnitude at a temperature…

Mesoscale and Nanoscale Physics · Physics 2023-12-15 Yu. N. Chiang , M. O. Dzyuba
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