Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field-induced intermediate ordered phase and anisotropic interlayer
  interactions in $\alpha$-RuCl$_3$   In $\alpha$-RuCl$_3$, an external magnetic field applied within the honeycomb
plane can induce a transition from a magnetically ordered state to a disordered
state that is potentially related to the Kitaev quantum spin liquid. In zero
field, single crystals with minimal stacking faults display a low-temperature
state with in-plane zigzag antiferromagnetic order and a three-layer
periodicity in the direction perpendicular to the honeycomb planes. Here, we
present angle-dependent magnetization, ac susceptibility, and thermal transport
data that demonstrate the presence of an additional intermediate-field ordered
state at fields below the transition to the disordered phase. Neutron
diffraction results show that the magnetic structure in this phase is
characterized by a six-layer periodicity in the direction perpendicular to the
honeycomb planes. Theoretically, the intermediate ordered phase can be
accounted for by including spin-anisotropic couplings between the layers in a
three-dimensional spin model. Together, this demonstrates the importance of
interlayer exchange interactions in $\alpha$-RuCl$_3$.

19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg