Thermal conductivity of Pr1.3-xLa0.7CexCuO4 single crystals and signatures of stripes in an electron-doped cuprate.

Pressure tuning of structure, superconductivity, and novel magnetic order in the Ce-underdoped electron-doped cuprate T′ -Pr1.3−xLa0.7CexCuO4 (x = 0.1)

Peculiar roles of spins in the thermal conductivity of pure and doped La2CuO4: Comparison with CuGeO3

In-plane and out-of-plane thermal conductivities (κab and κc) are measured on single crystals of pure, 1%-holedoped, and 1%-Zn-doped La2CuO4. The roles of magnons and the spin stripes in the heat transport in these samples are discussed. Comparison with the heat transport in CuGeO3, which shows similar κ(T ) behavior as that of La2CuO4, gives us a lesson of how the heat transport can probe the ...

ابررساناهای دمای بالا- با دید نوترونها

  Neutron scattering is proved to be a vital probe in unveiling the magnetic properties of high temperature superconductors (HTSC). Detailed information about the energy and momentum dependence of the magnetic dynamics of HTSC have been obtained directly by this technique. Over the past decade by improving the crystal growth methods, large and high quality single crystals of HTSC, which are ess...

Contrasting Pathways to Mott Gap Collapse in Electron and Hole Doped Cuprates

Recent ARPES measurements on the electron-doped cuprate Nd2−xCexCuO4 can be interpreted in a mean field model of uniform doping of an antiferromagnet, with the Mott gap closing near optimal doping. Mode coupling calculations confirm the mean field results, while clarifying the relation between the Mott gap and shortrange magnetic order. The same calculations find that hole doped cuprates should...

تشدید شکل فشباخ برای جفت شدگی Tc بالا در ابرشبکه‌های نوارهای کوانتمی و چاههای کوانتمی

  The Feshbach shape resonances in the interband pairing in superconducting superlattices of quantum wells or quantum stripes is shown to provide the mechanism for high Tc superconductivity. This mechanism provides the Tc amplification driven by the architecture of material: superlattices of quantum wells (intercalated graphite or diborides) and superlattices of quantum stripes (doped high Tc c...