Interstitial doping and oxygen exchange in superconducting La2CuO4+δ

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Doping Anomalies and Oxygen Vacancies in Underdoped Superconducting Cuprates

Measurements of thermal conductivity (κ) versus temperature and doping for several cuprate superconductors are discussed. Suppressed values of the normalstate κ and the slope change in κ at Tc, observed near 1/8 doping in both YBa2Cu3O6+x and Hg cuprates, are attributed to local lattice distortions and the suppression of the superconducting condensate, respectively. Both phenomena are proposed ...

متن کامل

Effect of Strontium doping on the Oxygen Diffusion in La2−xSrxCuO4±δ samples Investigated by Oxygen Isotope Back Exchange

Similar to LaCoO4.14, La2-xSrxCuO4±δ shows oxygen diffusion at moderate temperatures. The Oxygen Isotope Back Exchange (OIBE) experiments are done in order to investigate the effect of strontium on the oxygen diffusion in as grown single crystals of La2-xSrxCuO4±δ (x =0, 0.05, 0.1, 0.15). Neutron diffraction data collected at TriCS@SINQ are in agreement with diffusion measurements achieved by o...

متن کامل

Interstitial oxygen in germanium and silicon

The microscopic structure of interstitial oxygen in germanium and its associated dynamics are studied both experimentally and theoretically. The infrared absorption spectrum is calculated with a dynamical matrix model based on first-principles total-energy calculations describing the potential energy for the nuclear motions. Spectral features and isotope shifts are calculated and compared with ...

متن کامل

Doping dependence of low-energy quasiparticle excitations in superconducting Bi2212

: The doping-dependent evolution of the d-wave superconducting state is studied from the perspective of the angle-resolved photoemission spectra of a high-Tc cuprate, Bi2Sr2CaCu2 O8+δ (Bi2212). The anisotropic evolution of the energy gap for Bogoliubov quasiparticles is parametrized by critical temperature and superfluid density. The renormalization of nodal quasiparticles is evaluated in terms...

متن کامل

Spectral Function of Superconducting Cuprates near Optimal Doping

We argue that the unusual peak-dip-hump features observed in photoemission experiments on Bi2212 at T ø Tc can be explained by the interaction of the fermionic quasiparticles with overdamped spin fluctuations. We show that the strong spin-fermion interaction combined with the feedback effect on the spin damping due to superconductivity yields the fermionic spectral function AskF , vd which simu...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physica C: Superconductivity

سال: 1991

ISSN: 0921-4534

DOI: 10.1016/0921-4534(91)92176-c