Tunneling spectroscopy of Al/AlOx/Pb subjected to hydrostatic pressure
Tunneling spectroscopy of Al/AlOx/Pb subjected to hydrostatic pressure
复制标题
静水压力下 Al/AlOx/Pb 的隧道光谱
DOI:
10.1063/1.4921276
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发表时间:
2015-05
影响因子:
4
通讯作者:
Ren Cong
中科院分区:
文献类型:
--
作者:
Zhu Jun;Yang Zheng-Xin;Hou Xing-Yuan;Guan Tong;Zhang Qin-Tong;Li Yong-Qing;Han Xiu-Feng;Zhang Jin;Li Chun-Hong;Shan Lei;Chen Gen-Fu;Ren Cong
We develop an experimental tool to investigate high-pressure electronic density of state by combining electron tunneling spectroscopy measurements with high-pressure technique. It is demonstrated that tunneling spectroscopy measurement on Al/AlOx/Pb junction is systematically subjected to hydrostatic pressure up to 2.2 GPa. Under such high pressure, the normal state junction resistance is sensitive to the applied pressure, reflecting the variation of band structure of the barrier material upon pressures. In superconducting state, the pressure dependence of the energy gap Δ0, the gap ratio 2Δ0/kBTc, and the phonon spectral energy is extracted and compared with those obtained in the limited pressure range. Our experimental results show the accessibility and validity of high pressure tunneling spectroscopy, offering wealthy information about high pressure superconductivity.
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DOI:
10.1007/978-1-4684-1752-4_10
发表时间:
1969
期刊:
--
影响因子:
--
作者:
J. Simmons
通讯作者:
J. Simmons
影响因子:
3.4
作者:
J. Kirtley;F. Tafuri
通讯作者:
J. Kirtley;F. Tafuri
DOI:
10.1007/978-1-4684-1752-4_3
发表时间:
1969
期刊:
--
影响因子:
--
作者:
I. Giaever
通讯作者:
I. Giaever
影响因子:
8.6
作者:
DYNES, RC;GARNO, JP;ORLANDO, TP
通讯作者:
ORLANDO, TP
影响因子:
8.6
作者:
J. P. Franck;W. Keeler
通讯作者:
J. P. Franck;W. Keeler