TY - JOUR
T1 - Characteristics of total reflection X-ray excited current detected with the tip of a scanning tunneling microscope
AU - Tsuji, Kouichi
AU - Wagatsuma, Kazuaki
AU - Hirokawa, Kichinosuke
N1 - Funding Information:
Parts of this work were supported by a Grant-in-Aid (Nos. 06453109 and 07555260) from the Ministry of Education, Science, and Culture of Japan.
PY - 1997/7/1
Y1 - 1997/7/1
N2 - We have studied the current between a sample subject to irradiation by X-rays and the tip of a scanning tunneling microscope. The dependence on incident angle of both this current and the X-ray fluorescence from the sample was measured for Au, Co and Ti thin films with X-rays of different wavelengths. The angular dependence of the current agreed with that of X-ray fluorescence under vacuum conditions. As a result, it was confirmed that the tip current originated from electrons emitted from the sample surface. It was also found that the tip current depended on both the wavelength of the primary radiation and the type of sample.
AB - We have studied the current between a sample subject to irradiation by X-rays and the tip of a scanning tunneling microscope. The dependence on incident angle of both this current and the X-ray fluorescence from the sample was measured for Au, Co and Ti thin films with X-rays of different wavelengths. The angular dependence of the current agreed with that of X-ray fluorescence under vacuum conditions. As a result, it was confirmed that the tip current originated from electrons emitted from the sample surface. It was also found that the tip current depended on both the wavelength of the primary radiation and the type of sample.
KW - Scanning tunneling microscope
KW - Total reflection
KW - X-ray excited current
KW - X-ray fluorescence
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U2 - 10.1016/S0584-8547(96)01668-0
DO - 10.1016/S0584-8547(96)01668-0
M3 - Article
AN - SCOPUS:0031163964
VL - 52
SP - 855
EP - 860
JO - Spectrochimica Acta - Part B Atomic Spectroscopy
JF - Spectrochimica Acta - Part B Atomic Spectroscopy
SN - 0584-8547
IS - 7
ER -