Constant Resolution Tunneling Spectroscopy
Hipps, K. W.
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An inelastic electron tunneling spectrometer is described which is capable of providing constantresolution spectra over the 0 to greater than 16 OOO-cm --I range. Constant-resolution data acquisition is especially beneficial in the case of electronic transitions studied by tunneling spectroscopy. Data acquired asd2 V IdI2, (d 2 V IdI2 )/(dV /dJ) 2, and in constant-resolution mode are compared. At intermediate and at high bias, either ofthe two latter data-acquisition methods is superior to the first. At high bias voltage, constant-resolution spectra are superior.