Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mechanical Controlled Thermal Switch and Hysteresis with Domain Boundary
  Engineered Phonon Transport   Heat flow control in phononics has received significant attention recently
due to its widespread applications in energy transfer, conversion and
utilization. Here, we demonstrate that by applying external stress or strain we
can effectively tune the thermal conductivity through changing the density of
twin boundaries, which in turn offers the intriguing mechanical-controlled
thermal switch and hysteresis operations. Twin boundaries perpendicular to the
transport direction strongly scatter phonons. As such, the heat flow is in
inverse proportional to the density of twin boundaries and hence allows an
excellent way to switch thermal conductivity mechanically and even leads to the
interesting hysteresis behavior as a thermal memory. Our study provides a novel
mechanism to couple thermal and mechanical properties of materials as a matter
of "domain boundary engineering" and can have substantial implications in
flexible thermal control and thermal energy harvesting.

19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex