Spin-orbital polarons in electron doped copper oxides

Present work demonstrates the formation of spin-orbital polarons in electron doped copper oxides, that arise due to doping-induced polarisation of the oxygen orbitals in the CuO2 planes. The concept of such polarons is fundamentally different from previous interpretations. The novel aspect of spin–o...

Full description

Saved in:

Bibliographic Details
Main Authors:	Anna Kusmartseva, Heshan Yu, K. Jin, Feodor Kusmartsev
Format:	Default Article
Published:	2018
Subjects:	Mechanical engineering not elsewhere classified Condensed matter physics not elsewhere classified Other physical sciences not elsewhere classified untagged Mechanical Engineering Physical Sciences not elsewhere classified Condensed Matter Physics
Online Access:	https://hdl.handle.net/2134/27691
Tags:	Add Tag No Tags, Be the first to tag this record!

id	rr-article-9409823
record_format	Figshare
spelling	rr-article-94098232018-01-01T00:00:00Z Spin-orbital polarons in electron doped copper oxides Anna Kusmartseva (1256961) Heshan Yu (6112559) K. Jin (4690459) Feodor Kusmartsev (1251207) Mechanical engineering not elsewhere classified Condensed matter physics not elsewhere classified Other physical sciences not elsewhere classified untagged Mechanical Engineering Physical Sciences not elsewhere classified Condensed Matter Physics Present work demonstrates the formation of spin-orbital polarons in electron doped copper oxides, that arise due to doping-induced polarisation of the oxygen orbitals in the CuO2 planes. The concept of such polarons is fundamentally different from previous interpretations. The novel aspect of spin–orbit polarons is best described by electrons becoming self-trapped in one-dimensional channels created by polarisation of the oxygen orbitals. The one-dimensional channels form elongated filaments with two possible orientations, along the diagonals of the elementary CuO2 square plaquette. As the density of doped electrons increases multiple filaments are formed. These may condense into a single percolating filamentary phase. Alternatively, the filaments may cross perpendicularly to create an interconnected conducting quasi-one-dimensional web. At low electron doping the antiferromagnetic (AFM) state and the polaron web coexist. As the doping is increased the web of filaments modifies and transforms the AFM correla- tions leading to a series of quantum phase transitions - which affect the normal and superconducting state properties. 2018-01-01T00:00:00Z Text Journal contribution 2134/27691 https://figshare.com/articles/journal_contribution/Spin-orbital_polarons_in_electron_doped_copper_oxides/9409823 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Mechanical engineering not elsewhere classified Condensed matter physics not elsewhere classified Other physical sciences not elsewhere classified untagged Mechanical Engineering Physical Sciences not elsewhere classified Condensed Matter Physics
spellingShingle	Mechanical engineering not elsewhere classified Condensed matter physics not elsewhere classified Other physical sciences not elsewhere classified untagged Mechanical Engineering Physical Sciences not elsewhere classified Condensed Matter Physics Anna Kusmartseva Heshan Yu K. Jin Feodor Kusmartsev Spin-orbital polarons in electron doped copper oxides
description	Present work demonstrates the formation of spin-orbital polarons in electron doped copper oxides, that arise due to doping-induced polarisation of the oxygen orbitals in the CuO2 planes. The concept of such polarons is fundamentally different from previous interpretations. The novel aspect of spin–orbit polarons is best described by electrons becoming self-trapped in one-dimensional channels created by polarisation of the oxygen orbitals. The one-dimensional channels form elongated filaments with two possible orientations, along the diagonals of the elementary CuO2 square plaquette. As the density of doped electrons increases multiple filaments are formed. These may condense into a single percolating filamentary phase. Alternatively, the filaments may cross perpendicularly to create an interconnected conducting quasi-one-dimensional web. At low electron doping the antiferromagnetic (AFM) state and the polaron web coexist. As the doping is increased the web of filaments modifies and transforms the AFM correla- tions leading to a series of quantum phase transitions - which affect the normal and superconducting state properties.
format	Default Article
author	Anna Kusmartseva Heshan Yu K. Jin Feodor Kusmartsev
author_facet	Anna Kusmartseva Heshan Yu K. Jin Feodor Kusmartsev
author_sort	Anna Kusmartseva (1256961)
title	Spin-orbital polarons in electron doped copper oxides
title_short	Spin-orbital polarons in electron doped copper oxides
title_full	Spin-orbital polarons in electron doped copper oxides
title_fullStr	Spin-orbital polarons in electron doped copper oxides
title_full_unstemmed	Spin-orbital polarons in electron doped copper oxides
title_sort	spin-orbital polarons in electron doped copper oxides
publishDate	2018
url	https://hdl.handle.net/2134/27691
_version_	1797735053227196416

Spin-orbital polarons in electron doped copper oxides

Similar Items