Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of intrinsic inverse spin Hall effect   We report observation of intrinsic inverse spin Hall effect in un-doped GaAs
multiple quantum wells with a sample temperature of 10 K. A transient ballistic
pure spin current is injected by a pair of laser pulses through quantum
interference. By time-resolving the dynamics of the pure spin current, the
momentum relaxation time is deduced, which sets the lower limit of the
scattering time between electrons and holes. The transverse charge current
generated by the pure spin current via the inverse spin Hall effect is
simultaneously resolved. We find that the charge current is generated well
before the first electron-hole scattering event. Generation of the transverse
current in the scattering-free ballistic transport regime provides unambiguous
evidence for the intrinsic inverse spin Hall effect.

25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
30
The categories of this paper are: q-alg