Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "$\Phi$ memristor: Real memristor found" by F. Z. Wang, L.
  Li, L. Shi, H. Wu, and L. O. Chua [J. Appl. Phys. 125, 054504 (2019)]   Wang et al. claim [J. Appl. Phys. 125, 054504 (2019)] that a current-carrying
wire interacting with a magnetic core represents a memristor. Here, we
demonstrate that this claim is false. We first show that such memristor
"discovery" is based on incorrect physics, which does not even capture basic
properties of magnetic core materials, such as their magnetic hysteresis.
Moreover, the predictions of Wang et al.'s model contradict the experimental
curves presented in their paper. Additionally, the theoretical pinched
hysteresis loops presented by Wang et al. can not be reproduced if their model
is used, and there are serious flaws in their "negative memristor" emulator
design. Finally, a simple gedanken experiment shows that the proposed
$\Phi$-memristor would fail the memristor test we recently suggested in J.
Phys. D: Appl. Phys. 52, 01LT01 (2019). The device "discovered" by Wang et al.
is just an inductor with memory.

31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con