TY - JOUR
KW - Electric fields
KW - Crystallography
KW - Degrees of freedom (mechanics)
KW - Ground state
KW - Thermodynamic properties
KW - Coexistence of phasis
KW - Emergent phenomenon
KW - Epitaxial superlattice
KW - Hetero-interfaces
KW - Holder materials
KW - Oxide superlattices
KW - Theoretical study
KW - Thermodynamic variables
KW - Metastable phases
AU - Ramamoorthy Ramesh
AU - D.G Schlom
AB - Complex oxides are record holder materials for many phenomena, including ferroelectricity, piezoelectricity, superconductivity and multiferroicity. Complex oxides often have competing ground states with energies slightly higher than that of the true ground state. This competition is fortuitous because thermodynamic variables (for example, temperature, electric field, magnetic field, stress and chemical potentials) can access these metastable phases that are usually hidden but emerge as the energetic landscape is reshaped by adjusting the thermodynamic variables. Epitaxial superlattices are a platform for imposing thermodynamic boundary conditions to unleash the properties of hidden phases by altering the delicate balance between competing spin, charge, orbital and lattice degrees of freedom. Additionally, a feature of complex oxides with large responses (large property coefficients) is the coexistence of phases on the nanoscale. New phases can emerge at the heterointerfaces of oxide superlattices, and X-ray, electron, neutron and proximal probes as well as ab initio theoretical studies can provide insights into these emergent phenomena. © 2019, Springer Nature Limited.
BT - Nature Reviews Materials
DO - 10.1038/s41578-019-0095-2
LA - eng
M1 - 4
N1 - cited By 17
N2 - Complex oxides are record holder materials for many phenomena, including ferroelectricity, piezoelectricity, superconductivity and multiferroicity. Complex oxides often have competing ground states with energies slightly higher than that of the true ground state. This competition is fortuitous because thermodynamic variables (for example, temperature, electric field, magnetic field, stress and chemical potentials) can access these metastable phases that are usually hidden but emerge as the energetic landscape is reshaped by adjusting the thermodynamic variables. Epitaxial superlattices are a platform for imposing thermodynamic boundary conditions to unleash the properties of hidden phases by altering the delicate balance between competing spin, charge, orbital and lattice degrees of freedom. Additionally, a feature of complex oxides with large responses (large property coefficients) is the coexistence of phases on the nanoscale. New phases can emerge at the heterointerfaces of oxide superlattices, and X-ray, electron, neutron and proximal probes as well as ab initio theoretical studies can provide insights into these emergent phenomena. © 2019, Springer Nature Limited.
PB - Nature Publishing Group
PY - 2019
SP - 257
EP - 268
T2 - Nature Reviews Materials
TI - Creating emergent phenomena in oxide superlattices
VL - 4
SN - 20588437
ER -