Ontology highlight
ABSTRACT:
SUBMITTER: Tiberkevich V
PROVIDER: S-EPMC6588561 | biostudies-literature | 2019 Jun
REPOSITORIES: biostudies-literature
Scientific reports 20190621 1
Second sound is a quantum mechanical effect manifesting itself as a wave-like (in contrast with diffusion) heat transfer, or energy propagation, in a gas of quasi-particles. So far, this phenomenon has been observed only in an equilibrium gas of phonons existing in liquid/solid helium, or in dielectric crystals (Bi, NaF) at low temperatures. Here, we report observation of a room-temperature magnonic second sound, or a wave-like transport of both energy and spin angular momentum, in a quasi-equil ...[more]