Please briefly answer all the questions below, and writing those clearer and tidier (It is best...

Please briefly answer all the questions below, and writing those clearer and tidier (It is best to use typing)

This is a problem related to the scanning tunneling microscopy (TEM).

Please describe how the constant-current and constant-height modes work in obtaining a scanning tunneling microscopic image.
What does the STM image contrast represent at the sample bias goes form the negative to the positive?
Please explain why scanning tunneling microscopy can achieve atomic resolution on the surface of a conducting substrate.

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genius_generous answered 1 year ago

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