Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Field induced phases in UPt2Si2   The tetragonal compound UPt2Si2 has been characterised as a moderately mass
enhanced system with an antiferromagnetic ground state below T_N = 32 K. Here,
we present an extensive study of the behavior in high magnetic fields. We have
performed pulsed field magnetization and static field resistivity measurements
on single crystalline samples UPt2Si2. Along the crystallographic a axis, at
low temperatures, we find a metamagnetic-like transition in fields of the order
40 T, possibly indicating a first order transition. Along the crystallographic
c axis, in magnetic fields of B>= ~24 T, we find distinct anomalies in both
properties. From our analysis of the data we can distinguish new high field
phases above the AFM ground state. We discuss the emergence of these new phases
in the context of Fermi surface effects and the possible occurrence of a
Lifshitz or electronic topological transition, this in contrast to previous
modellings of UPt2Si2 based on crystal electric field effects.

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The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
3
The categories of this paper are: physics
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The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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The categories of this paper are: astro-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin