Magnetic Properties and Magnetocaloric Effect in Selected MM’X-Type (M, M’ = 3d or 4d Metal, X = As, P, Ge) and Mn1-xTxAs-Type (T = 3d Metal) Intermetallics

Ryszard Zach; Wiesław Chajec; Janusz Toboła; Daniel Fruchart; El Kebir Hlil; Mohamed Balli; Pierre Wolfers

doi:10.4028/www.scientific.net/SSP.170.180

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Magnetic Properties and Magnetocaloric Effect in Selected MM’X-Type (M, M’ = 3d or 4d Metal, X = As, P, Ge) and Mn_1-xT_xAs-Type (T = 3d Metal) Intermetallics
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Magnetic Properties and Magnetocaloric Effect in Selected MM’X-Type (M, M’ = 3d or 4d Metal, X = As, P, Ge) and Mn_1-xT_xAs-Type (T = 3d Metal) Intermetallics

Abstract:

In this report a review of magnetic properties of two groups of intermetallic compounds in relation with their magnetocaloric effect properties is presented. A first group of materials concerns the MM’X type (M, M’-metal 3d or 4d, X = As, P, Ge) of compounds. In this group the MnRh1-xCoxAs and MnFe1-xCoxP series of solid solutions are investigated. In a second group of materials, the Mn1-xTxAs (T = Cr, V, Ti, (Ti0.5V0.5) ) series of compounds are analyzed. In this case a special attention is paid for high dc field magnetization measurements and for selected compounds. As a summary the magnetic entropy change vs. M, M’ or T transition metal concentration for F-P phase transitions will be shown. Furthermore results of KKR-CPA electronic band structure computations in relation to magnetic properties are discussed.

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Solid State Phenomena (Volume 170)

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180-184

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.170.180

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Online since:

April 2011

Authors:

Ryszard Zach, Wiesław Chajec, Janusz Toboła, Daniel Fruchart, El Kebir Hlil, Mohamed Balli, Pierre Wolfers

Keywords:

Electronic Structure, KKR-CPA Method, Magnetic Phase Transition, Magnetic Structure, Magnetisation Measurements, Magnetocaloric Effect, Neutron Diffraction, X-Ray Diffraction (XRD)

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