JEOL JSPM-5200 Instructions Manual page 269

５ MEASUREMENT OPERATION
• Si
ngle SPS
You
Specify the kind of SPS measurement to perform and
urement using the SPM Parameters window.
• S
PS Mapping
You can perform SPS M
performed at every pixel in one
measurement to perform and the parameters for the measurement using the SPM
Parameters window. The number of pixels is 128 × 128 in the SPS Mapping scan
mode.
If you specify I-V for SPS measurement, the CITS (Current Imaging Tunneling
Spectroscopy) scan will be performed. The images displayed during scanning are as
follows:
STM/ AFM
S pecify the scanning mode. Strictly speaking, specify the kind of signal to use for
Z-d irection feedback in this selection box.
• STM
This is the STM mode. The logarithmic value of the tunneling current is used for
the feedback signal.
•
Contact
This is the Contact mode in the AFM mode. The Force signal is used for feedback.
• AC
This
frequency-amplitude signal of the cantilever oscillation is used for feedback.
• FM
This is the AC mode in the AFM mode. The frequency signal (FMD signal) of the
cantilever oscillation is used for feedback.
• Phase
This is the AC mode in the AFM mode. The Phase signal of the cantilever oscilla-
tion is used for feedback.
5-206
can perform various kinds of SPS (Scanning Probe Spectroscopy) measu
apping measurement. The specified SPS measurement is
Topo
image
Current
image
"
"
is the AC mode in the AFM mode. The RMS (Root-Mean-Square) of the
frame (Topography) scan. Specify the kind of SPS
Current
" "
image
" " "
" " "
" " "
rement.
the parameters for the meas-
TMPM5200-2