Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Order-by-disorder and magnetic field response in Heisenberg-Kitaev model
  on a hyperhoneycomb lattice   We study the finite temperature phase diagram of the Heisenberg-Kitaev model
on a three dimensional hyperhoneycomb lattice. Using semiclassical analysis and
classical Monte-Carlo simulations, we investigate quantum and thermal
order-by-disorder, as well as the magnetic ordering temperature. We find the
parameter regime where quantum and thermal fluctuations favor different
magnetic orders, which leads to an additional finite temperature phase
transition within the ordered phase. This transition, however, occurs at a
relatively low temperature and the entropic effects may dominate most of the
finite temperature region below the ordering temperature. In addition, we
explore the magnetization process in the presence of a magnetic field and
discover spin-flop transitions which are sensitive to the applied-field
direction. We discuss implications of our results for future experiments on a
hyperhoneycomb lattice system such as the recently discovered \beta-Li2IrO3.

0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex