We present particleincell simulations of a combined whistler heat flux and temperature anisotropy instability that is potentially operating in the solar wind. The simulations are performed in a uniform plasma and initialized with core and halo electron populations typical of the solar wind beyond about 0.3 au. We demonstrate that the instability produces whistlermode waves propagating both along (antisunward) and opposite (sunward) to the electron heat flux. The saturated amplitudes of both sunward and antisunward whistler waves are strongly correlated with their initial linear growth rates,
In this paper, we design a tunable phasemodulated metasurface composed of periodically distributed piezoelectric patches with resonanttype shunt circuits. The electroelastic metasurface can control the wavefront of the lowest antisymmetric mode Lamb wave (
 Award ID(s):
 1933436
 NSFPAR ID:
 10401663
 Publisher / Repository:
 IOP Publishing
 Date Published:
 Journal Name:
 Journal of Physics D: Applied Physics
 Volume:
 56
 Issue:
 16
 ISSN:
 00223727
 Page Range / eLocation ID:
 Article No. 164001
 Format(s):
 Medium: X
 Sponsoring Org:
 National Science Foundation
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