ProgramMaster Logo
Conference Tools for 2020 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Current Trends in Magnetocaloric Materials: An FMD Symposium in Honor of Ekkes Brueck
Presentation Title Quantitative Identification of First-order Phase Transitions Using Magnetocaloric Studies
Author(s) Jia Yan Law
On-Site Speaker (Planned) Jia Yan Law
Abstract Scope The usual techniques to determine the order of phase transitions depend on interpretations based on qualitative data features, thus jeopardized by misinterpretations or extensive calculations. In this talk, we show that using the field dependence of isothermal entropy change (magnetocaloric effect), the order of the phase transition can be quantitatively determined: an exponent n larger than 2 at the transition constitutes the fingerprint of first-order thermomagnetic phase transition [1]. This newly proposed alternative to identify the order of thermomagnetic phase transitions will be applied to various series of magnetic materials, including alloys, oxides and multiphase composites. This technique could outdo the accuracy of the typical methods used for identifying the order of magnetic phase transitions, especially for compositions very near to the critical point of second-order phase transition. [1] J. Y. Law, et al., Nature Communications, 9, 2680 (2018).
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

CaloriSMART – A New Tool for Rapid Experimental Evaluation of Active Magnetic Regenerator Materials
Energy Harvesting Using Thermomagnetic Generators with Magnetocaloric Materials
Fe2P an Intriguing Binary Alloy
Giant Barocaloric Effect at the Spin Crossover Transition of a Molecular Crystal
Itinerant-electron Magnetism, Spin-fluctuations, and Magnetocaloric Effect in La(Fe,Si)13-based Magnetocaloric Compounds
Magnetocaloric Effect in Heusler-type Magnetic Shape Memory Materials
Materials for Thermomagnetic Harvesting of Low Temperature Waste Heat
Quantitative Identification of First-order Phase Transitions Using Magnetocaloric Studies
Rare-earth-free Permanent Magnets: The Past and Future
Structure, Magnetisim and Spin Dynamics of Magnetocaloric Mn5-xFexSi3 Compounds
Synchrotron X-ray Studies on Magnetocaloric Materials
The Interplay of Electronic, Magnetic and Lattice Degrees of Freedom in La-Fe-Si-based Magnetocaloric Materials
Tuning Magnetocaloric Materials with Stress
Under Pressure: Probing Magneto-structural Coupling in MCE Materials
Unprecedented Magnetism, Magneto-crystalline Anisotropy, and Magneto-structural Phase Transformation in Rare Earth Containing Materials

Questions about ProgramMaster? Contact programming@programmaster.org