Microwave stimulation of dislocations and the magnetic control of the earthquake coreстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 20 декабря 2019 г.
Аннотация:Microwave irradiation transforms the elasticity of
solids into plasticity by controlling the dislocation mobility via
magnetic interactions within the electron spin pairs on the
dislocations. In ionic crystals, microwaves cause dislocations
to accelerate and increase their mean free path, thus leading to a
release of elastic energy; in covalent crystals, microwaves keep
dislocations in place, thereby accumulating elastic energy and
increasing the crystal strength. Microwave pumping at resonant
Zeeman frequencies (in the magnetic resonance regime) is firm
evidence of the concepts of electron spin pairs and of the magnetoplasticity phenomenon itself. However, the dominant contribution to the macroscopic transformation of elastic energy into
plastic flow comes from nonresonant microwaves. These can be
used to control the mechanics of diamagnetic solids, including,
importantly, the earthquake focus. The observed correlation
between magnetic events (such as magnetic storms and hydrodynamically generated high-power magnetic pulses) and their
seismic and tectonic consequences (earthquake frequency and
magnitude and deformations) indicates unambiguously that
magnetically controlling the earthquake focus provides a realistic means to prevent a catastrophe by transforming large-magnitude earthquakes into weak, low-magnitude events.