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Unravelling the temperature-pressure phase diagram for the multiferroic, BiFeO3
Bismuth ferrite is arguably the most widely studied multiferroic material due to room temperature magnetic and ferroelectric ordering. However, despite extensive research 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... -
Programme Access Rosseinsky
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Structural phase diagram of rare earth substituted multiferroic BiFeO3
BiFeO3 is one of the most widely studied multiferroics (ferroelectric TC ~ 830°C, and antiferromagnetic TN ~ 370°C). Rare earth doping has been shown to be a suitable method of... -
Copy of: Pressure induced phase switching magnetic ordering in BiFeO3-PbTiO3
This experiment seeks to continue previous work on PEARL, whereby the phase is altered in the room temperature multiferroic BiFeO3 - PbTiO3 using hydrostatic pressure with the... -
The role of step-size on the pressure phase diagram of BiFeO3
bismuth ferrite (BFO) remains the most studied multiferroic as a result of room temperature electric and magnetic ordering. However, real world applications are limited due to... -
pressure induced para-antiferromagnetic switching in the multiferroic BiFeO3 ...
We have shown using previous experiments that moderate hydrostatic pressures can be used to switch phase from tetragonal to rhombohedral in the material BiFeO3 - PbTiO3 at room... -
Unravelling the temperature-pressure phase diagram for the multiferroic, BiFeO3
Bismuth ferrite is arguably the most widely studied multiferroic material due to room temperature magnetic and ferroelectric ordering. However, despite extensive research the... -
Room temperature ferromagnetic/ferroelectric ordering in BaTiO3 - BiFeO3 - Pb...
There are very few genuine claims of materials that are ferroelectric and ferromagnetic at room temperature. In This proposal we will study both textured and non texture BaTiO3... -
Neutron diffuse scattering from multiferroic single crystal BiFeO3
BiFeO3 is a canonical multiferroic material. We know that local (nanoscale) order is crucial in explaining the behaviour of conventional ferroelectrics, and reciprocal space... -
Magnetoelectric coupling in the multiferroic ceramic BiFeO3 - PbTiO3
The polycrystalline ceramic BiFeO3 - PbTiO3 is both ferroelectric and antiferromagnetic for a wide range of compositional space. We have shown in previous experiments that (1)... -
The origin of the ferromagnetic behavior in room temperature multiferroics Bi...
The long period cycloid in multiferroic BiFeO3 influences the potential applications of this material and it has been shown that doping (with La and Mn) enlarges the cycloid... -
In-situ Variable Temperature Studies of Dy Doped BiFeO3
Multiferroics and in particular BiFeO3 have recieved alot of interest. The potential of multiferroic materials to be incorporated into many devices such as sensors and memory... -
Study of magnetic spiral in the room temperature multiferroic BiFeO3 - PbTiO3
BiFeO3 is a room temperature multiferroic, displaying both ferroelectric and antiferromagnetic (AFE) ordering. x-BiFeO3 - (1-x)-PbTiO3 is also multiferroic at room temperature... -
Structural phase diagram of rare earth substituted multiferroic BiFeO3 - revi...
BiFeO3 is the most widely studied multiferroic and rare earth doping overcomes problems associated with phase metastability and leakage which have hampered applications. We... -
Low energy spin wave of BiFeO3 single crystal
Of all multiferroic materials, BiFeO3 stands out particularly with its both magnetic and ferroelectric transition temperatures above room temperatures, more interestingly having... -
Structural and magnetic neutron diffraction study of a novel frustrated syste...
Every new triangular lattice (TL) antiferromagnet attracts considerable attention since they usually display rich physics due to the inherent frustration and degenerate ground... -
The elusive ¿cubic¿ phase of BiFeO3 and related materials
We wish to probe the suggested existence of a high-temperature cubic perovskite phase in the multiferroic material BiFe0.7Mn0.3O3. The parent phase of this material, BiFeO3, was... -
Acceptor-doped BiFeO3: Oxide Ion Conduction and Possible Structural Disorder.
2 days of beamtime is requested on Polaris to study the defect structure of an oxide-ion conductor Bi1-xBaxFeO3-x/2. RT total neutron scattering studies on samples heat treated... -
Electric field induced magnetisation in BiFeO3 - PbTiO3 thin films
High quality epitaxial films of the multiferroic BiFeO3 - PbTiO3 have been prepared using pulsed laser deposition. Using an electric field, we will induce a ferroelectrically...
