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Giant spin fluctuations and their effect on the first order magnetic transiti...
A giant enhancement of the heat capacity in La(Fe13-xSix) indicates the presence of large spin fluctuations at the paramagnetic to ferromagnetic phase transition. The nature of... -
Magneto-elasticity, metamagnetism and the magnetic cooling potential of Fe2P-...
We wish to trace the changes in lattice parameters and atomic coordinates around the first and second order Curie transitions of Fe2P and boron (11B)-doped Fe2P0.95,B0.05... -
Shifting the tricritical point in CoMnSi
We have a long-standing interest in the temperature- and magnetic field-evolution of magnetic and crystal structure in CoMnSi. This is driven by an interest in the... -
Well, well, well: the free energy landscape of hydrogenated La(Fe,Si)13?
Magnetic cooling promises efficiency savings at room temperature but requires rapid cycling of a magnetic refrigerant in a magnetic field. Refrigerants with first order... -
Pressure response of CoMnSi: an anisotropic metamagnet with giant magnetoelas...
We wish to use elastic (this experiment) and inelastic neutron scattering (experiments on MARI and MERLIN submitted in this round) as an approach to quantify the change in... -
From giant magneto-elastic coupling to negative thermal expansion
We recently used high-resolution neutron diffraction on HRPD to observe the largest magneto-elastic coupling ever seen in a metallic magnet. The material studied was CoMnSi, a... -
Giant magneto-elastic interactions and changes in the phonon spectrum of CoMnSi
Neutrons are almost never used to examine the role of phonons in materials with large magnetocaloric effects, despite the large magneto-elastic coupling often exhibited by them.... -
Giant magnetostriction in CoMnSi: a tricritical metamagnet with large changes...
For several years, we have been studying the thermodynamics of the metamagnetic phase transition in CoMnSi and substituted versions. Our motivation has been that the... -
High Resolution Powder Diffraction of Manganites to Determine Bond Lengths as...
Manganites show promise as magnetocaloric materials - for use in solid-state refrigeration - in terms of cost, durability and tunable thermal conductivity. By tuning the...