Teichert, Niclas: Shape memory Heusler alloys for thin film applications. 2016
Inhalt
- 1 Introduction
- 2 Fundamentals
- 2.1 The martensitic transformation
- 2.1.1 Gibbs free energy
- 2.1.2 Martensitic microstructure
- 2.1.3 Martensitic transformation in Heusler compounds
- 2.2 The magnetocaloric effect
- 2.3 The exchange bias effect
- 3 Experimental details
- 4 Exchange bias effect in Ni-Mn-Sn films for spintronic applications
- 4.1 Introduction
- 4.2 Structural properties of the Ni-Mn-Sn layer
- 4.3 Magnetization measurements
- 4.4 Tunnel magnetoresistance measurements
- 4.4.1 Exchange bias
- 4.4.2 Temperature dependence of the TMR
- 4.4.3 Shape anisotropy of the elliptical MTJs
- 4.5 Comparison
- 4.6 Conclusions
- 5 Ni-Co-Mn-Al films for magnetocaloric applications
- 5.1 Introduction
- 5.2 Structure
- 5.3 Magnetic properties
- 5.4 Magnetocaloric properties
- 5.5 Phase diagram
- 5.6 Conclusions
- 6 Summary
- 7 Outlook