scholarly journals Spin contribution to the instability of THz plasma waves

AIP Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 085207
Author(s):  
Chenxiao Liu ◽  
Liping Zhang ◽  
Jiangxu Feng
Keyword(s):  
Plasma Waves ◽  
Spin Contribution

scholarly journals Non-linear Terahertz driving of plasma waves in layered cuprates

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Francesco Gabriele ◽  
Mattia Udina ◽  
Lara Benfatto
Keyword(s):  
Low Frequency ◽  
Plasma Waves ◽  
Meissner Effect ◽  
High Energy ◽  
Plasma Mode ◽  
Light Pulses ◽  
High Frequency Plasma ◽  
Non Linear ◽  
Out Of Plane ◽  
Layered Cuprates

AbstractThe hallmark of superconductivity is the rigidity of the quantum-mechanical phase of electrons, responsible for superfluid behavior and Meissner effect. The strength of the phase stiffness is set by the Josephson coupling, which is strongly anisotropic in layered cuprates. So far, THz light pulses have been used to achieve non-linear control of the out-of-plane Josephson plasma mode, whose frequency lies in the THz range. However, the high-energy in-plane plasma mode has been considered insensitive to THz pumping. Here, we show that THz driving of both low-frequency and high-frequency plasma waves is possible via a general two-plasmon excitation mechanism. The anisotropy of the Josephson couplings leads to markedly different thermal effects for the out-of-plane and in-plane response, linking in both cases the emergence of non-linear photonics across Tc to the superfluid stiffness. Our results show that THz light pulses represent a preferential knob to selectively drive phase excitations in unconventional superconductors.

scholarly journals Persistent plasma waves in interstellar space detected by Voyager 1

2021 ◽  
Author(s):  
Stella Koch Ocker ◽  
James M. Cordes ◽  
Shami Chatterjee ◽  
Donald A. Gurnett ◽  
William S. Kurth ◽  
...  
Keyword(s):  
Plasma Waves ◽  
Interstellar Space

scholarly journals Direct imaging of plasma waves using ultrafast electron microscopy

2020 ◽  
Vol 7 (6) ◽  
pp. 064301
Author(s):  
Shuaishuai Sun ◽  
Xiaoyi Sun ◽  
Daniel Bartles ◽  
Elliot Wozniak ◽  
Joseph Williams ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Plasma Waves ◽  
Direct Imaging

Refraction of plasma waves in the ionosphere (in connection with sounding of the ionosphere from above)

1973 ◽  
Vol 16 (7) ◽  
pp. 753-758
Author(s):  
B. N. Gershman ◽  
A. E. Krupina ◽  
Yu. Ya. Yashin
Keyword(s):  
Plasma Waves

Plasma waves in the magnetosphere

Nature ◽  
1978 ◽  
Vol 271 (5643) ◽  
pp. 309-316 ◽  
Author(s):  
D. J. Southwood
Keyword(s):  
Plasma Waves
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