Superfluid density in the underdoped YBa_2Cu_3O_{7-x}: Evidence for d-density wave order of pseudogap
| dc.creator | Trunin, M. R. | |
| dc.creator | Nefyodov, Yu. A. | |
| dc.creator | Shevchun, A. F. | |
| dc.date | 2003-12-22 | |
| dc.date.accessioned | 2026-07-07T02:55:33Z | |
| dc.date.available | 2026-07-07T02:55:33Z | |
| dc.description | The investigation of the penetration depth λ_{ab}(T,p) in YBa_2Cu_3O_{7-x} crystals allowed to observe the following features of the superfluid density n_s(T,p)\propto λ_{ab}^{-2}(T,p) as a function of temperature T<Tc/2 and carrier concentration 0.078\le p\le 0.16 in CuO_2 planes: (i) n_s(0,p) depends linearly on p, (ii) the derivative |dn_s(T,p)/dT|_{T\to 0} depends on p slightly in the optimally and moderately doped regions (0.10<p\le 0.16); however, it rapidly increases with p further lowering and (iii) the latter finding is accompanied by the linear low-temperature dependence [-Δn_s(T)]\propto T changing to [-Δn_s(T)]\propto \sqrt{T}. All these peculiarities can be treated in the framework of d-density wave scenario of electronic processes in underdoped high-Tc materials. | |
| dc.description | 4 pages, 5 figures. To be published in Phys.Rev.Lett | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0312566 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0312566 | |
| dc.identifier | Phys. Rev. Lett. 92, 067006 (2004) | |
| dc.identifier | doi:10.1103/PhysRevLett.92.067006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/22978 | |
| dc.subject | Superconductivity | |
| dc.title | Superfluid density in the underdoped YBa_2Cu_3O_{7-x}: Evidence for d-density wave order of pseudogap | |
| dc.type | text |