We report a transport study on Pd_{3}In_{7}which displays multiple Dirac typeII nodes in its electronic dispersion. Pd_{3}In_{7}is characterized by low residual resistivities and high mobilities, which are consistent with Diraclike quasiparticles. For an applied magnetic field (
Surface plasmons, which allow tight confinement of light, suffer from high intrinsic electronic losses. It has been shown that stimulated emission from excited electrons can transfer energy to plasmons and compensate for the high intrinsic losses. Todate, these realizations have relied on introducing an external gain media coupled to the surface plasmon. Here, we propose that plasmons in twodimensional materials with closely located electron and hole Fermi pockets can be amplified, when an electrical current bias is applied along the displaced electronhole pockets, without the need for an external gain media. As a prototypical example, we consider WTe_{2}from the family of 1T
 Award ID(s):
 1741660
 NSFPAR ID:
 10385037
 Publisher / Repository:
 Nature Publishing Group
 Date Published:
 Journal Name:
 Nature Communications
 Volume:
 13
 Issue:
 1
 ISSN:
 20411723
 Format(s):
 Medium: X
 Sponsoring Org:
 National Science Foundation
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