TITLE

Structural stability and magnetic properties of SmCo7-xGax

AUTHOR(S)
Yongquan Guo; Wei Li; Weichun Feng; Jun Luo; Jingkui Liang; Qijun He; Xiaojun Yu
PUB. DATE
May 2005
SOURCE
Applied Physics Letters;5/9/2005, Vol. 86 Issue 19, p192513
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have studied the structural stability and magnetic properties of SmCo7-xGax compounds using powder x-ray diffraction and magnetic measurements. Gallium as a dopant not only stabilizes the SmCo 1:7 phase but also induces a strong uniaxial magnetocrystalline anisotropy. An anisotropy field as high as 30.7 T is observed at 5 K in the SmCo6Ga compound. The strong anisotropy field might be due to the occupation of Ga atom. The structural stability of SmCo7-xGax compounds is related to the effective Sm/(Co,Ga) atomic radius ratio (RA) and the difference in electronegativity (XA) between Sm and (Co,Ga). According to our calculation, the SmCo 1:7 type structure can be stabilized in range from 1.08(5) to 1.12(9) for RA and -1.04(4) to -0.94(4) for XA.
ACCESSION #
17164760

 

Related Articles

  • Effect of Ni Doping on the Structural, Magnetic and Magnetocaloric Properties of PrCaMnNiO Manganites. Selmi, A.; Cheikhrouhou-Koubaa, W.; Koubaa, M.; Cheikhrouhou, A. // Journal of Superconductivity & Novel Magnetism;May2013, Vol. 26 Issue 5, p1421 

    In this paper, we report the structural, magnetic, and magnetocaloric properties of Ni-doped PrCaMnNiO (0≤ y≤0.1) powder samples. Our compounds were synthesized using the solid state reaction method at high temperature. X-ray diffraction analysis using Rietveld refinement show that...

  • Growth process and magnetic properties of α-FeSe nanostructures. Li, S. J.; Li, D.; Jiang, J. J.; Liu, G. B.; Ma, S.; Liu, W.; Zhang, Z. D. // Journal of Applied Physics;2014, Vol. 115 Issue 17, p17B502-1 

    Growth process and magnetic properties of PbO-type α-FexSe nanostructures with shape changing from nanocacti to nanopetals and then to nanosheets are investigated. With iron acetylacetonate [Fe(acac)3] and Se powder as raw materials, the diffusion process of Fe atoms dominates the synthesis...

  • Magnetic Behaviour of the Orthochromite La0.1Gd0.9CrO3. Sharma, Neha; Srivastava, Bipin K.; Krishnamurthy, Anjali // AIP Conference Proceedings;7/16/2011, Vol. 1349 Issue 1, p1179 

    Magnetic behaviour has been reported for lanthanum doped gadolinium orthochromite, La0.1Gd0.9CrO3 in the temperature range 20 K-300 K. Distinct negative magnetization is exhibited by field cooling measurements while zero field cooling measurements show only positive magnetization. This arises...

  • Quasi-TEM Analysis of Electromagnetic Parameters for Different Conducting Bodies. Musa, Sarhan M.; Sadiku, Matthew N. O. // International Review on Modelling & Simulations;Dec2009, Vol. 2 Issue 6, p667 

    Accurate and efficient computation of electromagnetic parameters for different conducting bodies represents an essential part of spacecraft modern integrated circuits. in this paper, we will illustrate modeling of inhomogeneous shielded rectangular, circular, triangular, and cylindrical...

  • Low-temperature thermoelectric and magnetic characteristics of CaBiCoFeO (0 ≤ x ≤ 0.10). Bhaskar, Ankam; Lin, Z.-R.; Liu, Chia-Jyi // Journal of Materials Science: Materials in Electronics;Feb2014, Vol. 25 Issue 2, p778 

    The effect of Fe ion doping on the low-temperature thermoelectric and magnetic properties of CaBiCoFeO (x = 0.00, 0.025, 0.05 and 0.10) have been investigated. The samples were prepared by conventional solid-state synthesis. The X-ray diffraction patterns revealed that all the samples are single...

  • Intrinsic magnetic properties of single-phase Mn1+xGa (0 < x < 1) alloys. Lu, Q. M.; Yue, M.; Zhang, H. G.; Wang, M. L.; Yu, F.; Huang, Q. Z.; Ryan, D. H.; Altounian, Z. // Scientific Reports;11/27/2015, p17086 

    Magnetization measurements have been carried out on a series of carefully prepared single-phase Mn1 + xGa (0 < x < 1) alloys. The saturation magnetization Ms, measured at 5 K, has a value of 92.0 emu/g for x = 0.15. This is the highest value reported in these alloys and is close to the...

  • X-ray magnetic circular dichroism characterization of GaN/Ga1-xMnxN digital ferromagnetic heterostructure. Hwang, J. I.; Kobayashi, M.; Song, G. S.; Fujimori, A.; Tanaka, A.; Yang, Z. S.; Lin, H. J.; Huang, D. J.; Chen, C. T.; Jeon, H. C.; Kang, T. W. // Applied Physics Letters;8/13/2007, Vol. 91 Issue 7, p072507 

    The authors have investigated the magnetic properties of a GaN/Ga1-xMnxN (x=0.1) digital ferromagnetic heterostructure (DFH) showing ferromagnetic behavior using soft x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD). The Mn L2,3-edge XAS spectra were similar to...

  • The effect of Ga vacancies on the defect and magnetic properties of Mn-doped GaN. Kang, Joongoo; Chang, K. J. // Journal of Applied Physics;Oct2007, Vol. 102 Issue 8, p083910 

    We perform first-principles theoretical calculations to investigate the effect of the presence of Ga vacancy on the defect and magnetic properties of Mn-doped GaN. When a Ga vacancy (VGa) is introduced to the Mn ions occupying the Ga lattice sites, a charge transfer occurs from the Mn d band to...

  • Doping effects arising from Fe and Ge for Mn in La[sub 0.7]Ca[sub 0.3]MnO[sub 3]. Sun, J. R.; Rao, G. H.; Shen, B. G.; Wong, H. K. // Applied Physics Letters;11/16/1998, Vol. 73 Issue 20 

    Structural, magnetic, and transport properties of polycrystalline La[sub 0.7]Ca[sub 0.3]Mn[sub 1-x]Fe[sub x]O[sub 3] and La[sub 0.7]Ca[sub 0.3]Mn[sub 1-x]Ge[sub x]O[sub 3] are experimentally studied. Single-phase samples are obtained in the range x=0–0.12 for Fe, and x=0–0.06 for...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics