Functional Oxide Materials Discovery using Extreme Conditions
Lead Research Organisation:
University of Edinburgh
Department Name: Sch of Chemistry
Abstract
This proposal will explore the synthesis of electronic and spintronic metal oxides using high pressure and other extreme conditions.The discovery of new materials with outstanding properties motivates much of modern chemistry, physics and materials science. Electronic and magnetic materials e.g. superconductors, magnetoresistors, ferroics and multiferroics are a particular challenge due to the unpredictability of the ground states of correlated electron systems, and their frequent sensitivity to small changes in chemical composition and physical conditions. Despite these difficulties, the exploration of often complex electronic materials has transformed our understanding of many fields in the last two decades, notable inorganic examples being;- High-Tc superconductors - layered copper oxides, fullerides, MgB2, and the new RFeAsO materials.- Magneto-responsive materials - e.g. CMR and multiferroic behaviour in manganese oxide perovskites.- Quantum matter and criticality - ranging from quantum paraelectricity in SrTiO3 to high temperature quantum Hall effects in graphene.Such inorganic materials have large compressibilities (~100-400 GPa), and so high pressures (HP) are needed to change their chemistry, structures and properties significantly. The general aim of our project is to discover new oxides having interesting and useful electronic properties including spintronic activity. High pressure synthesis will be used extensively, but high temperature flux growth and thin film depositions will also be applied. The new materials will be structurally characterized and basic physical properties explored. More detailed characterizations and testing for applications (e.g. in spintronic devices) will be done in collaboration with other UK and Japanese groups.
Organisations
People |
ORCID iD |
J Attfield (Principal Investigator) |
Publications
Alonso J
(2018)
Gérard Demazeau, 07.06.1943-03.11.2017
in Zeitschrift für Naturforschung B
Arevalo-Lopez A
(2017)
Hard-soft chemistry of Sr 1-x Ca x CrO 3-d solid solutions
in Materials Chemistry Frontiers
Arevalo-Lopez A
(2018)
Spin order in the charge disproportionated phases of the A -site layer ordered triple perovskite LaC a 2 F e 3 O 9
in Physical Review B
Arévalo-López A
(2012)
"Hard-Soft" Synthesis of SrCrO 3- d Superstructure Phases
in Angewandte Chemie
Arévalo-López AM
(2016)
Competing antiferromagnetic orders in the double perovskite Mn2MnReO6 (Mn3ReO6).
in Chemical communications (Cambridge, England)
Denis Romero F
(2017)
Charge and spin order in C a 0.5 B i 0.5 Fe O 3 : Idle spins and frustration in the charge-disproportionated state
in Physical Review B
Hosaka Y
(2016)
Charge and spin order in the perovskite CaF e 0.5 M n 0.5 O 3 : Charge disproportionation behavior of randomly arranged F e 4 +
in Physical Review B
Kimber SA
(2012)
Charge order at the frontier between the molecular and solid states in Ba3NaRu2O9.
in Physical review letters
Kusmartseva A
(2017)
Bistability and relaxor ferrimagnetism in off-stoichiometric NiCrO3
in Journal of Magnetism and Magnetic Materials
Markkula M
(2011)
Incommensurate spin order in the metallic perovskite MnVO 3
in Physical Review B
McNally G
(2017)
Complex Ferrimagnetism and Magnetoresistance Switching in Ca-Based Double Double and Triple Double Perovskites
in Chemistry of Materials
Ortega-San-Martin L
(2009)
Frustrated Orders in the Perovskite (Bi 0.5 Sr 0.5 )CrO 3
in Chemistry of Materials
Saito T
(2017)
G -type antiferromagnetic order in the metallic oxide LaC u 3 C r 4 O 12
in Physical Review B
Solana-Madruga E
(2016)
Double Double Cation Order in the High-Pressure Perovskites MnRMnSbO6.
in Angewandte Chemie (International ed. in English)
Xiong P
(2018)
Charge Disproportionation in Sr0.5Bi0.5FeO3 Containing Unusually High Valence Fe3.5.
in Inorganic chemistry
Yates K
(2009)
Investigation of superconducting gap structure in TbFeAsO 0.9 F 0.1 using point contact Andreev reflection
in New Journal of Physics
Description | New magnetoresistive double double perovskites have been synthesised using equipment and methods developed under this award. |
Exploitation Route | Spintronics sector |
Sectors | Electronics |
Description | EPSRC |
Amount | £489,222 (GBP) |
Funding ID | GLOBAL - EPENET |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2012 |
End | 03/2013 |