Evolution of the Magnetic Ground State in the Electron-Doped Antiferromagnet CaMnO$_3$
| dc.creator | Cornelius, A. L. | |
| dc.creator | Light, B. | |
| dc.creator | Neumeier, J. J. | |
| dc.date | 2001-08-15 | |
| dc.date | 2003-05-28 | |
| dc.date.accessioned | 2026-07-07T02:42:25Z | |
| dc.date.available | 2026-07-07T02:42:25Z | |
| dc.description | Measurements of the specific heat on the system Ca$_{1-x}$La$_{x}$MnO$_{3}$ (% $x\leq 0.10$) are reported. Particular attention is paid to the effect that doping the parent compound with electrons by substitution of La for Ca has on the magnetic ground state. The high ($T>40$ K) temperature data reveals that doping decreases $T_{N}$ from 122 K for the undoped sample to 103 K for $x=0.10$. The low temperature ($T<20$ K) heat capacity data is consistent with phase separation. The undoped sample displays a finite density of states and typical antiferromagnetic behavior. The addition of electrons in the $x\leq 0.03$ samples creates local ferromagnetism as evidenced by a decreased intermanl field and the need to add a ferromagnetic component to the heat capacity data for $x=0.03$. Further substitution enhances the ferromagnetism as evidenced by the formation of a long range spin density wave. | |
| dc.description | 6 pages, 4 figures (to appear in PRB) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0108239 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0108239 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/18136 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.title | Evolution of the Magnetic Ground State in the Electron-Doped Antiferromagnet CaMnO$_3$ | |
| dc.type | text |