The optimal ZT of n type is 1.17at 800K, originating from the Normal scattering process, while the optimal ZT of p type is 0.86, stemming from the Intravally scattering process. Our results provide a deeper understanding of the transport processes in SnSe and offer insights for tuning the ...
In electronic transport, umklapp processes play a fundamental role as the only intrinsic mechanism that allows electrons to transfer momentum to the crystal lattice and, therefore, provide a finite electrical resistance in pure metals1,2. However, umklapp scattering is difficult to demonstrate in exper...
umklapp process/ photoemission band mappingsurface umklappsp bandnormal emission UPS spectrumCs-reconstructedWe report the observation of a peak in the region of the sp band for 4 < h谓 < 10 eV in the normal emission UPS spectrum of the Cs-reconstructed Ag(110) surface. It disperses over ...