Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Landau-Zener tunneling of a single Tb3+ magnetic moment allowing the
  electronic read-out of a nuclear spin   A multi-terminal device based on a carbon nanotube quantum dot was used at
very low tem- perature to probe a single electronic and nuclear spin embedded
in a bis-phthalocyanine Terbium (III) complex (TbPc2). A spin-valve signature
with large conductance jumps was found when two molecules were strongly coupled
to the nanotube. The application of a transverse field separated the magnetic
signal of both molecules and enabled single-shot read-out of the Terbium
nuclear spin. The Landau-Zener (LZ) quantum tunneling probability was studied
as a function of field sweep rate, establishing a good agreement with the LZ
equation and yielding the tunnel splitting \Delta. It was found that ?
increased linearly as a function of the transverse field. These studies are an
essential prerequisite for the coherent manipulation of a single nuclear spin
in TbPc2.

37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph