Microwave Absorption Peaks : Signatures of Spin Dynamics in Cuprates
| dc.creator | Sridhar, S. | |
| dc.creator | Zhai, Z. | |
| dc.creator | Erb, A. | |
| dc.date | 1999-06-03 | |
| dc.date | 1999-06-17 | |
| dc.date.accessioned | 2026-07-07T03:13:37Z | |
| dc.date.available | 2026-07-07T03:13:37Z | |
| dc.description | We show that a common feature of temperature-dependent microwave absorption is the presence of absorption peaks. $ac$ loss peaks can arise when the internal $T$-dependent magnetic relaxation time crosses the measurement frequency. These features are observed in the \QTR{em}{insulating} ($Sr_{x}Ca_{14-x}Cu_{24}O_{41}$, $La_{5/3}Sr_{1/3}NiO_{4}$ and $YBa_{2}Cu_{3}O_{6.0}$), \QTR{em}{pseudo-gap} ($T>T_{c}$ in underdoped $YBa_{2}Cu_{3}O_{7-δ}$, $Hg:1223$ and $Hg:1201$) and \QTR{em}{superconducting} ($T<T_{c}$) states of the oxides. The commonality of these features suggests a magnetic (spin) mechanism, rather than a quasiparticle origin, for the so-called ``conductivity'' peaks observed in the cuprate superconductors. | |
| dc.description | 7 pages, 2 ps format figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9906053 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9906053 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/29365 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Microwave Absorption Peaks : Signatures of Spin Dynamics in Cuprates | |
| dc.type | text |