radio-frequency-magnetron-sputtering-gdba2cu3o7-la067sr033mno3-quasi

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7&#8722;&#948;/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates

Here, we demonstrate a method of coating ferromagnetic La0.67Sr0.33MnO3 (LSMO) nanoparticles on (001) SrTiO3 (STO) single-crystal substrates by radio ...

Shanghai University of Electric Power

Shanghai Institute of Space Power-sources

H2O is one of the most important substances needed in sustaining life; but not much is known about its ground state. Here a previously unidentified anomaly is identified in the form of a minimum in the imaginary part of the dielectric constant with respect to temperature near 20 K, while the real part remains monotonic. Isothermal dispersion and absorption measurements show coinciding results. For the case of heavy ice (D2O), no anomaly was identified, confirming an apparent isotope effect. Concerted quantum tunneling of protons is believed to be the main cause behind the reported anomaly. Our findings identify another system that exhibits macroscopic quantum phenomena that rarely occur in nature. 

Tian Gao

Department of Physics,
Mathematics,
Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power,
Department of Physics, Mathematics, Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power

Shanghai University of Electric Power

Radio Frequency Magnetron Sputtering of GdBa₂Cu₃O₇₋_δ/ La_0.67Sr_0.33MnO₃ Quasi-bilayer Films on SrTiO₃ (STO) Single-crystal Substrates