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arXiv 1612.03396cond-mat.mes-hall
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锆中电子-声子相互作用的点接触函数

Point-contact function of the electron-phonon interaction in zirconium

N. L. Bobrov, L. F. Rybaltchenko, V. V. Fisun, A. V. Khotkevich

摘要:

利用Yanson点接触(PC)光谱技术对锆的电子-声子相互作用(EPI)谱进行了实验研究。测定了EPI谱函数和常数。研究了同质接触($Zr-Zr$)和异质接触($Zr-Cu$、$Zr-Ag$和$Zr-Au$)。铜、银或金对异质接触光谱没有贡献。在能量5-6、9-11、13-15、18-20和27-29 $meV$处观察到EPI函数的五个声子特征的位置。观察到的PC光谱的多样性归因于$Zr$的各向异性。pacs{71.38.- k,73.40.Jn,74.25.Kc,74.45.+ c}

英文摘要:

Experimental study of the electron-phonon interaction (EPI) spectra of zirconium was carried out using Yanson's point-contact (PC) spectroscopy. The EPI spectral function and constant were determined. Both homocontacts ($Zr-Zr$) and heterocontacts ($Zr-Cu$, $Zr-Ag$, and $Zr-Au$) were studied. No contribution by copper, silver or gold to the heterocontact spectra was detected. The positions of five phonon features of the EPI function were observed at energies 5-6, 9-11, 13-15, 18-20, and 27-29 $meV$. The observed diversity of the PC spectra was attributed to the anisotropy of $Zr$. pacs{71.38.-k, 73.40.Jn, 74.25.Kc, 74.45.+c}

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