Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Muon spin rotation studies of spin dynamics at avoided level crossings
  in LiY0.998Ho0.002F4   We have studied the Ho3+ spin dynamics for LiY0.998Ho0.002F4 through the
positive muon (mu+) transverse field depolarization rate lambda_TF as a
function of temperature and magnetic field. We find sharp reductions in
lambda_TF(H) at fields of 23, 46 and 69 mT, for which the Ho3+ ion system has
field-induced (avoided) level crossings. The reduction scales with calculated
level repulsions, suggesting that mu+ depolarization by slow fluctuations of
non-resonant Ho3+ spin states is partially suppressed when resonant tunneling
opens new fluctuation channels at frequencies much greater than the muon
precession frequency.

1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol