Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 201101 |
| Number of pages | 1 |
| Journal | Physical Review / B |
| Volume | 65 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 2002 |
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Temperature dependence of optical spectral weights in quarter-filled ladder systems. / Aichhorn, Markus; Horsch, Peter; von der Linden, Wolfgang; Cuoco, Mario.
In: Physical Review / B, Vol. 65, No. 20, 2002, p. 201101.Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Temperature dependence of optical spectral weights in quarter-filled ladder systems
AU - Aichhorn, Markus
AU - Horsch, Peter
AU - von der Linden, Wolfgang
AU - Cuoco, Mario
PY - 2002
Y1 - 2002
N2 - The temperature dependence of the integrated optical conductivity I(T) reflects the changes of the kinetic energy as spin and charge correlations develop. We calculated I(T) in the frame of a t-J-V model for ladder systems, such as α′-NaV2O5, and show that the measured strong T dependence of I(T) for NaV2O5 can be explained by the destruction of short-range antiferromagnetic correlations. Thus I(T) provides detailed information about the T dependence of superexchange energy and thereby allows for an independent determination of magnetic energy scales.
AB - The temperature dependence of the integrated optical conductivity I(T) reflects the changes of the kinetic energy as spin and charge correlations develop. We calculated I(T) in the frame of a t-J-V model for ladder systems, such as α′-NaV2O5, and show that the measured strong T dependence of I(T) for NaV2O5 can be explained by the destruction of short-range antiferromagnetic correlations. Thus I(T) provides detailed information about the T dependence of superexchange energy and thereby allows for an independent determination of magnetic energy scales.
UR - http://link.aps.org/abstract/PRB/v65/e201101
U2 - 10.1103/PhysRevB.65.201101
DO - 10.1103/PhysRevB.65.201101
M3 - Article
VL - 65
SP - 201101
JO - Physical Review / B
JF - Physical Review / B
SN - 1098-0121
IS - 20
ER -