Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multiferroicity with coexisting isotropic and anisotropic spins in
  Ca$_{3}$Co$_{2-x}$Mn$_{x}$O$_{6}$   We study magnetic and multiferroic behavior in Ca$_3$Co$_{2-x}$Mn$_{x}$O$_6$
($x \sim$0.97) by high-field measurements of magnetization ($M$),
magnetostriction ($L$($H$)/$L$), electric polarization ($P$), and
magnetocaloric effect. This study also gives insight into the zero and low
magnetic field magnetic structure and magnetoelectric coupling mechanisms. We
measured $M$ and $\Delta$$L$/$L$ up to pulsed magnetic fields of 92 T, and
determined the saturation moment and field. On the controversial topic of the
spin states of Co$^{2+}$ and Mn$^{4+}$ ions, we find evidence for $S$ = 3/2
spins for both ions with no magnetic field-induced spin-state crossovers. Our
data also indicate that Mn$^{4+}$ spins are quasi-isotropic and develop
components in the $ab$-plane in applied magnetic fields of 10 T. These spins
cant until saturation at 85 T whereas the Ising Co$^{2+}$ spins saturate by 25
T. Furthermore, our results imply that mechanism for suppression of electric
polarization with magnetic fields near 10 T is flopping of the Mn$^{4+}$ spins
into the $ab$-plane, indicating that appropriate models must include the
coexistence of Ising and quasi-isotropic spins.

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The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph