Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theory of single spin inelastic tunneling spectroscopy   Recent work shows that inelastic electron scanning tunneling microscope (STM)
probes the elementary spin excitations of a single and a few magnetic atoms in
a thin insulating layer. Here I show that this new type of spectroscopy is
described using a phenomenological spin-assisted tunneling Hamiltonian. Within
this formalism, the inelastic $dI/dV$ lineshape is related to the spin spectral
weight of the probed magnetic atom. This accounts for the spin selection rules
observed experimentally. The theory agrees well with existing STM experiments
for single Fe and Mn atoms as well as linear chains a few Mn atoms. The
magnetic anisotropy in the inelastic $dI/dV$ and the marked odd-even $N$
effects are accounted for by the theory.

27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph