Onset and melting of local orbital order |
| |
Authors: | Singh Avinash Singh Dheeraj Kumar |
| |
Institution: | Department of Physics, Indian Institute of Technology, Kanpur, India. |
| |
Abstract: | The onset and melting of locally staggered charge/orbital correlations is investigated within a two-orbital correlated electron model with inter-orbital and inter-site Coulomb interactions. The CE-type orbital correlation exhibits a sharp onset close to the Curie temperature and rapid thermal melting thereafter, which provides quantitative understanding of the (π/2,π/2,0) feature observed in neutron scattering experiments on La(0.7)(Ca(y)Sr(1-y))(0.3)MnO(3) single crystals. In the zig-zag AF state, the CE-type orbital correlations are found to be even more readily stabilized, but only within a narrow doping regime around x = 0.5. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|