Transport properties of rare earth doped La2?xSrxCuO4

Anomalous thermopower in the organic compoundθ−(BEDT-TTF)2RbM(SCN)Abdel‐Jawad1, Terasaki2, Mori3 et al. 2009Phys. Rev. B4010View full textAdd to dashboardCite

“…We can confirm these trends by quenching the material so as to freeze the high-temperature phase and extend and S b to temperatures as low as 50 K. Note that S b was unable to be measured accurately from 130 to 190 K as the rapidly cooled state decomposes too quickly to the equilibrium phase. The anomalous nature of the temperature dependence of S b is similar to the case of the normal-state thermopower of the high-T c copper oxides 15,16 and to the thermopower of the misfit cobalt oxides. 17 However a few very important differences between these systems exist.…”

Local magnetic and structural properties of the low-temperature orthorhombic to low-temperature tetragonal transition: A139LaNQR study in lightly hole-dopedLaSuh1, Hammel2, Hücker3 et al. 1999Phys. Rev. B193120View full textAdd to dashboardCite

“…The structural phase transition ͑SPT͒ from the lowtemperature orthorhombic ͑LTO͒ to the low-temperature tetragonal ͑LTT͒ phase in La 2Ϫx Ba x CuO 4 and in rare-earthdoped La 2ϪxϪy M y Sr x CuO 4 ͑M ϭNd, Eu͒ has attracted much attention due to its rich phenomenology: ͑i͒ the destruction of superconductivity in a certain range of hole concentration, 1-3 ͑ii͒ anomalous changes in magnetic and electronic properties, [3][4][5][6] and ͑iii͒ the ordering of the charge into stripes. 6,7 Therefore, improved understanding of the LTO→LTT SPT could provide crucial insight into the influence of the lattice on electronic and magnetic properties in high-T c superconductors.…”