2as well as giant Rydberg excitons3exhibiting signatures of quantum coherences4and quantum chaotic behavior5. As the exciton ground state – the so-called paraexciton – is decoupled from the radiation field in unstrained Cu2O, paraexcitons can reach lifetimes up to microseconds6rendering them a ...
Xiao Wang1, Dapeng Liu1, Junqi Li1,2, Jiangman Zhen1,2 and Hongjie Zhang1 The fabrication of multi-component hybrid nanostructures is of vital importance because their two-phase interface could provide a rich environment for redox reactions, which are beneficial for enhancing catalytic performance...
Xiao Wang1, Dapeng Liu1, Junqi Li1,2, Jiangman Zhen1,2 and Hongjie Zhang1 The fabrication of multi-component hybrid nanostructures is of vital importance because their two-phase interface could provide a rich environment for redox reactions, which are beneficial for enhancing catalytic performance...
As schematically shown in Figure 1, this technique, which belongs to the more general category of Combustion Synthesis (CS), is characterized by the fact that once ignited, a relatively strong exothermic reaction is able to propagate as a combustion wave through the entire reacting mixture, ...
severely etched by ammonium, which is indispensable during the CeO 2 coating process). However, recently, an important one-step synthetic strategy called ‘clean synthesis’ 17–23 inspired us to solve this problem. Herein, ‘clean’ means not only free of toxic raw materials, especially organic...
(Pb 0.5 Fe 0.5 )Sr 2 (Y 0.5 Ca 0.5 )Cu 2 O z is known to have so-called “1-2-1-2” crystallographic structure which is one of typical structures of high-temperature superconducting cuprates (HTSC’s). While it possesses structural characteristics of HTSC’s, superconductivity has not...
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The physical enhancement mechanism, also called the electromagnetic enhancement mechanism, is mainly based on the excitation of localized surface plasmon resonance (LSPR) on noble metal nanostructures37. In general, when the distance between adjacent noble metal Table 1 Assignments of bands in the SERS...
It is known that the normal state in the cuprates around optimal doping is characterized by a linear dependence of resistivity on temperature, generally called the “strange metal” phase. At higher doping and lower temperatures, this dependence assumes the normal metallic power law dependence in ...
Here, I argue that the peak in c-axis conductance usually occurs well below Tc; that for small ITS mesas, it represents the superconducting gap; and that the genuine shape of tunneling characteristics for cuprates is not universal but depends on doping, uniformity, and geometry. 展开 ...