IEEE Transactions on Magnetics

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An Effective Route to Control the Magnetic-Phase Transition and Magnetocaloric Effect of La0.7Ca0.3MnO3 Nanoparticles
IEEE Transactions on Magnetics - Tập 50 Số 11 - Trang 1-4
T. L. Phan, T. D. Thanh, T. A. Ho, T. V. Manh, Q. T. Tran, P. Lampen, M. H. Phan, S. C. Yu
This paper points out that the magnetic-phase transition and magnetocaloric effect of La0.7Ca0.3MnO3 (LCMO) can be easily controlled by using the mechanical milling method. Changing the milling time from 5 to 30 min, we have obtained LCMO nanoparticles (NPs) with average crystallite sizes (d, determined by the Williamson–Hall method) ranging from 100 to 45 nm. The magnetic studies (based on a supe...... hiện toàn bộ
#Magnetic-phase transition #magnetocaloric effect #manganite nanoparticles (NPs)
Critical Behavior and Magnetocaloric Effect of Pr1-xSrxCoO3
IEEE Transactions on Magnetics - Tập 50 Số 11 - Trang 1-4 - 2014
T. A. Ho, T. D. Thanh, T. O. Ho, Q. T. Tran, T. L. Phan, S. C. Yu
The modified Arrott plot method was used to analyze magnetic-field dependences of magnetization, \(M\) ( \(H\) ), for two polycrystalline samples Pr1-x Srx CoO3 with \(x = 0.4\) and 0.5. The analyses determined the values of critical parameters \(T_{C} \approx 204\) K, \(\beta = 0.654~\pm ~0.016\) , \(\gamma = 1.11~\pm ~0.009\) , and \(\delta = 2.70~\pm ~0.009\) for \(x = 0.4\) , and \(...... hiện toàn bộ
#Magnetic-phase transition #magnetocaloric (MC) effect #Sr-doped PrCoO3 cobaltites
High frequency impedance of CuBe solid pins used for fast computer connectors
IEEE Transactions on Magnetics - Tập 33 Số 5 - Trang 3316-3318 - 1997
M. Yamaguchi, H. Kikuchi, I.K. Arai, S. Ishikawa, T. Adachi
High frequency characteristics and mechanical properties of CuBe alloy pins are evaluated to meet the fast computer connector requirements. A new jig to measure the 1 MHz-1 GHz impedance of the pins is developed. The inductance and the cross-talk for CuBe pins were similar to those of phosphor bronze pins because both are non-magnetic materials. The feature of CuBe alloy pins are low ac resistance...... hiện toàn bộ
#Frequency #Solids #Pins #Mechanical factors #Connectors #Electrical resistance measurement #Impedance measurement #Inductance #Phosphors
Writing performance of narrow gap heads made with sputtered laminated FeN materials on 3800 Oe coercivity media
IEEE Transactions on Magnetics - Tập 30 Số 6 - Trang 3870-3872 - 1994
H.L. Hu, L. Vo, T. Nguyen, N. Robertson, M. Re, C. Jahnes
Recording results of write heads using sputtered laminated FeN/Al/sub 2/O/sub 3/ materials on thin film media with coercivity up to 3800 Oe are compared with those obtained using plated NiFe materials. The thickness of P2 (second pole) of FeN merged write heads is about 3.2 /spl mu/m, and those of plated NiFe heads, 3.5 and 6.3 /spl mu/m respectively. These heads have two write gap thickness, arou...... hiện toàn bộ
#Writing #Magnetic heads #Magnetic materials #Coercive force #Magnetization #Inductance #Gaussian processes #Neck #Thickness measurement #Crystallization
Electrical Field-Induced Magnetization Switching in CoFe/NiFe/PZT Multiferroics
IEEE Transactions on Magnetics - Tập 50 Số 6 - Trang 1-4 - 2014
Nguyen Thi Minh Hong, Pham Thai Ha, Le Viet Cuong, P. T. Long, Pham Duc Thang
In this paper, we have investigated the change in magnetization of multiferroic material, based on magnetic nanostructured CoFe/NiFe film grown on the piezoelectric lead zirconate titanate (PZT), under the effect of the strain originated from PZT layer. In this material, a converse magnetoelectric effect and especially, an electric field-induced magnetic anisotropy and magnetization switching proc...... hiện toàn bộ
#Ferroelectrics #ferromagnetics #magnetization switching #multiferroics
Influence of Heat Treatment on Superconductivity of MgB$_{2}$ Bulk Sintered in Flowing Welding Grade Ar Atmosphere
IEEE Transactions on Magnetics - Tập 45 Số 6 - Trang 2626-2629 - 2009
Y. Zhang, Cheng Lü, S.H. Zhou, Kookchae Chung, Y.K. Kim, Shi Xue Dou
Interferometric and holographic techniques in transmission electron microscopy for the observation of magnetic domain structures
IEEE Transactions on Magnetics - Tập 20 Số 5 - Trang 1870-1875 - 1984
Gioṙgio Matteucci, G.F. Missiroli, G. Pozzi
HDDR processes in Nd/sub 16/Fe/sub 76-x/Zr/sub x/B/sub 8/ alloys and the production of anisotropic magnets
IEEE Transactions on Magnetics - Tập 32 Số 5 - Trang 4368-4370 - 1996
C. Short, Philippe Guégan, Oliver Gutfleisch, O.M. Ragg, I.R. Harris
Processing of Neodymium-Iron-Boron melt-spun ribbons to fully dense magnets
IEEE Transactions on Magnetics - Tập 21 Số 5 - Trang 1958-1963 - 1985
R. Lee, E. G. Brewer, N. Schaffel
Origin of anisotropy in the HDDR process of Nd/sub 2/Fe/sub 14/B-based alloys
IEEE Transactions on Magnetics - Tập 29 Số 6 - Trang 2770-2772 - 1993
Minoru Uehara, H. Tomizawa, S. Hirosawa, T. Tomida, Yasuhiro Maehara
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