The control of electrons through patterning of superstructures
Lead Research Organisation:
University of Oxford
Department Name: Oxford Physics
Abstract
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Publications
Princep A
(2015)
Crystal field states of Tb 3 + in the pyrochlore spin liquid Tb 2 Ti 2 O 7 from neutron spectroscopy
in Physical Review B
Princep A
(2013)
Crystal-field states of Pr 3 + in the candidate quantum spin ice Pr 2 Sn 2 O 7
in Physical Review B
Prabhakaran D
(2017)
Crystal growth of the triangular-lattice antiferromagnet Ba3CoSb2O9
in Journal of Crystal Growth
Prabhakaran D
(2017)
Crystal growth of pyrochlore rare-earth stannates
in Journal of Crystal Growth
Porter D
(2015)
Two-dimensional Cs-vacancy superstructure in iron-based superconductor Cs 0.8 Fe 1.6 Se 2
in Physical Review B
Porter D
(2014)
Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate
in Physical Review B
Phokha S
(2014)
Ferromagnetic induced in Cr-doped CeO2 particles
in Microelectronic Engineering
Liu X
(2013)
Strongly momentum-dependent screening dynamics in La 0.5 Sr 1.5 MnO 4 observed with resonant inelastic x-ray scattering
in Physical Review B
Lancaster T
(2014)
Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La 5 / 3 Sr 1 / 3 CoO 4
in Physical Review B
Description | I have investigated several topical materials in which different kinds of superstructures play a key role in determining their physical behaviour. The main findings were: 1. Detection of charge stripes in layered cobaltates, which provides and understanding of their magnetic spectrum and has implications for the physics of the copper oxide superconductors. 2. Discovery of magnetic and structural superstructures in an Fe-based superconductor (CsFe2Se2) and their effect on physical properties. 3. Uncovered importance of divacancy superstructures and rattling modes in the thermoelectric properties of NaxCoO2. 4. Detection of electromagnon modes in the multiferroic phase of copper oxide. 5. Prepared substrates for the epitaxial thin film growth of spin ice materials. + many other detailed results. |
Exploitation Route | Further experiments and theoretical investigations |
Sectors | Other |
URL | http://xray.physics.ox.ac.uk/Boothroyd/ |
Description | The findings have been used by other researchers in the field, including work on Na ion batteries that follows from the study of Na ion ordering in sodium cobalt oxide |
First Year Of Impact | 2018 |
Sector | Energy,Other |
Description | A state-of-the-art optical floating-zone furnace for crystal growth at high pressures |
Amount | £893,916 (GBP) |
Funding ID | EP/R024278/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2018 |
End | 09/2020 |
Description | RHUL |
Organisation | Royal Holloway, University of London |
Department | Department of Earth Sciences |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | The project was a collaboration between my group and the group of Prof Jon Goff at RHUL. Our contribution was to prepare single crystal samples, and characterize them by bulk techniques and neutron scattering. |
Collaborator Contribution | Prof Goff's group performed neutron and synchrotron x-ray scattering measurements and carried out theoretical calculations. |
Impact | Main output is publications |
Start Year | 2012 |
Title | SPECTRE |
Description | SPECTRE is a programme to calculate the single-ion spectroscopic properties of rare-earth ions in crystals |
Type Of Technology | Software |
Year Produced | 2015 |
Impact | The software has been used in three publications by other groups |
URL | https://groups.physics.ox.ac.uk/Boothroyd/software.htm |