Quantum Ferroelectric Magnets in Underdoped Manganites
| dc.creator | Guajardo, E. R. Sanchez | |
| dc.date | 2006-08-13 | |
| dc.date.accessioned | 2026-07-07T07:19:40Z | |
| dc.date.available | 2026-07-07T07:19:40Z | |
| dc.description | Using the degenerate double exchange Hamiltonian with on-site Coulomb interactions we show that there is an instability towards the displacement of the manganese ion in La_{1-x}Ca_{x}MnO_{3}. The result is a dipole moment due to the charge disproportionation and the lattice distortions that gives rise to the predicted magnetic ferroelectric phase for dopings in between x=4 and x=5. The instability is stabilized by the phonons of the lattice, resulting in a stable configuration of the degrees of freedom of the system. | |
| dc.description | 4 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0608300 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0608300 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/114710 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Quantum Ferroelectric Magnets in Underdoped Manganites | |
| dc.type | text |