Microstructure and Thermomagnetic Properties of As-Quenched Gd₇₅Ge₁₅Si₅Pr₅ Alloy

• Authors: M. Hasiak
• Languages of publication: EN

Abstracts

EN

Microstructure and thermomagnetic properties of the as-quenched Gd₇₅Ge₁₅Si₅Pr₅ (wt.%) alloy are studied. Multiphase composition of the investigated sample was confirmed by microstructural as well as magnetic investigations. The presence of the Gd₆₈Ge₁₈Si₇Pr₇ and Gd₇₆Ge₁₄Si₅Pr₅ regions with different atom concentration was confirmed by SEM/EDS analysis and temperature dependence of magnetic mass susceptibility. From DC magnetic measurements of magnetization versus temperature performed in zero-field/field cooled modes, and magnetic mass susceptibility investigations the Curie temperature (283 K and 278 K, respectively) and magnetic behavior were studied. Moreover, the structural investigations were performed as temperature dependence of specific heat capacity.

Keywords

EN

75.50.Cc; 81.30.-t; 75.60.Ej; 75.30.Cr; 65.40.Ba

Discipline

• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)
• 65.40.Ba: Heat capacity(for specific heat of magnetic materials, see 75.40.-s)
• 75.50.Cc: Other ferromagnetic metals and alloys
• 75.30.Cr: Saturation moments and magnetic susceptibilities
• 81.30.-t: Phase diagrams and microstructures developed by solidification and solid-solid phase transformations(see also 64.70.K- Solid-solid transitions)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 3
• Pages: 684-687

Dates

published

2018-03

Contributors

author

M. Hasiak

• Wrocław University of Science and Technology, Department of Mechanics and Materials Science Engineering, Smoluchowskiego 25, 50-370 Wrocław, Poland

References

• [1] V.K. Pecharsky, K.A. Gschneidner, Jr., Appl. Phys. Lett. 70, 32109 (11097), doi: 10.1063/1.119206
• [2] B.G. Shen, J.R. Sun, F.X. Hu, H.W. Zhang, Z.H. Cheng, Adv. Mater. 21, 4545 (2009), doi: 10.1002/adma.200901072
• [3] M.H. Phan, S.C.Yu, J. Magn. Magn. Mater. 308, 325 (2007), doi: 10.1016/j.jmmm.2006.07.025
• [4] N. Pierunek, Z. Śniadecki, J. Marcin, I. Škorvánek, B. Idzikowski, IEEE Trans Magn. 50, 2506603 (2014), doi: 10.1109/TMAG.2014.2318595
• [5] P. Gębara, Rare Met. 1-7 (2017), doi: 10.1007/s12598-017-0917-6
• [6] E. Brück, J. Phys. D: Appl. Phys. 38, R381 (2005), doi: 10.1088/0022-3727/38/23/R01
• [7] K.A. Gschneidner Jr, V.K. Pecharsky, Internat. J. Refrigerat. 31, 945 (2008), doi: 10.1016/j.ijrefrig.2008.01.004
• [8] M. Hasiak, Phys. Stat. Sol. A 213, 1130 (2016), doi: 10.1002/pssa.201532812

Identifiers

DOI

10.12693/APhysPolA.133.684