Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Active microrheology of a bulk metallic glass   The glass transition remains unclarified in condensed matter physics.
Investigating the mechanical properties of glass is challenging because any
global deformation that may result in shear rejuvenation requires an
astronomical relaxation time. Moreover, it is well known that a glass is
heterogeneous and a global perturbation cannot explore local
mechanical/transport properties. However, an investigation based on a local
probe, i.e. microrheology, may overcome these problems. Here, we establish
active microrheology of a bulk metallic glass: a probe particle driven into
host medium glass. This is a technique amenable for experimental
investigations. We show that upon cooling the microscopic friction exhibits a
second-order phase transition; this sheds light on the origin of friction in
heterogeneous materials. Further, we provide distinct evidence to demonstrate
that a strong relationship exists between the microscopic dynamics of the probe
particle and the macroscopic properties of the host medium glass. These
findings establish active microrheology as a promising technique for
investigating the local properties of bulk metallic glass.

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The categories of this paper are: hep-ex
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The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
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The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
2
The categories of this paper are: math