Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Atomic resolution imaging at 2.5 GHz using near-field microwave
  microscopy   Atomic resolution imaging is demonstrated using a hybrid scanning
tunneling/near-field microwave microscope (microwave-STM). The microwave
channels of the microscope correspond to the resonant frequency and quality
factor of a coaxial microwave resonator, which is built in to the STM scan head
and coupled to the probe tip. We find that when the tip-sample distance is
within the tunneling regime, we obtain atomic resolution images using the
microwave channels of the microwave-STM. We attribute the atomic contrast in
the microwave channels to GHz frequency current through the tip-sample tunnel
junction. Images of the surfaces of HOPG and Au(111) are presented.

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The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin