Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adiabatic cross-polarization   A scheme of adiabatic cross-polarization is described. It is based on
demagnetization - remagnetization, when the Zeeman order of abundant nuclei in
the laboratory frame is first adiabatically converted into the dipolar order,
and then, into the Zeeman order of rare nuclei. The scheme, implemented with
two low-power frequency-sweeping pulses, is very efficient for static samples
and can significantly increase polarization of rare nuclei, compared to the
conventional Hartmann-Hahn cross-polarization. The experimental examples are
presented for solids, liquid crystal, and molecules in a liquid-crystalline
solvent.

36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph