Alexander Barcza

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CoMnSi1−xGex-system Nizioł et al., J. Magn. Magn. Mat. 79 333-337 (1989) CoMnSi-based metamagnets CoMnSi 1−x Gex Objectives in making CoMnSi1−xGex: change sample composition and gain control over Tt separate Tt and T C measure the magnetocaloric effect A <strong>Barcza</strong>, K G Sandeman (DMG) CoMnSi-based magnetocaloric compounds 14th August 2007 9 / 27
CoMnSi-based metamagnets CoMnSi 1−x Gex Magnetization M(H) and MCE of CoMnSi1−xGex Ge substitution decreases the metamagnetic transition temperature transition is sharpest in CoMnSi0.95Ge0.05 yielding ∆ST=9 J kg −1 K −1 at ∆H = 5 T change of sign around room temperature Sandeman et al., Phys. Rev. B 74 224436 (2006) A <strong>Barcza</strong>, K G Sandeman (DMG) CoMnSi-based magnetocaloric compounds 14th August 2007 10 / 27
Page 1 and 2: From Sensitivity to Tunability in C
Page 3 and 4: Why use Mn based alloys? Mn based c
Page 5 and 6: Inverse MCE in FeRh Kouvel J S J. A
Page 7 and 8: Introduction Thermodynamic quantiti
Page 9 and 10: CoMnSi-based metamagnets CoMnSi The
Page 11: CoMnSi-based metamagnets CoMnSi The
Page 15 and 16: CoMn1−xNixSi - Aims CoMnSi-based
Page 17 and 18: CoMnSi-based metamagnets CoMn 1−x
Page 27 and 28: Summary Summary and Outlook Samples
Page 29 and 30: Conclusion Conclusion and further w
Page 31 and 32: Appendix A Barcza, K G Sandeman (DM
Page 33: Appendix A Barcza, K G Sandeman (DM

Alexander Barcza

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