Observation of field-induced spin-current relaxation in a Fermi liquid

1993 ◽  
Vol 71 (6) ◽  
pp. 879-882 ◽  
Author(s):  
L-J. Wei ◽  
N. Kalechofsky ◽  
D. Candela
Keyword(s):  
Fermi Liquid ◽  
Spin Current ◽  
Current Relaxation

Spin waves in a persistent spin-current Fermi liquid

2010 ◽  
Vol 81 (6) ◽  
Author(s):  
J. D. Feldmann ◽  
K. S. Bedell
Keyword(s):  
Fermi Liquid ◽  
Spin Waves ◽  
Spin Current

scholarly journals Spin-Current Relaxation Time in Spin-Polarized Heisenberg Paramagnets

2005 ◽  
Vol 138 (3-4) ◽  
pp. 841-846
Author(s):  
R. Ragan ◽  
K. Grunwald ◽  
B. Batell
Keyword(s):  
Relaxation Time ◽  
Spin Current ◽  
Spin Polarized ◽  
Current Relaxation

scholarly journals Spin current relaxation time in thermally evaporated pentacene films

2017 ◽  
Vol 110 (3) ◽  
pp. 032403 ◽  
Author(s):  
Yasuo Tani ◽  
Takuya Kondo ◽  
Yoshio Teki ◽  
Eiji Shikoh
Keyword(s):  
Relaxation Time ◽  
Spin Current ◽  
Current Relaxation

Incoherent spin current

2017 ◽  
Author(s):  
K. Ando ◽  
E. Saitoh
Keyword(s):  
Diffusion Equation ◽  
Spin Density ◽  
Spin Diffusion ◽  
Spin Injection ◽  
Spin Current ◽  
Ferromagnetic Semiconductor ◽  
Electrochemical Potential ◽  
Semiconductor Interface ◽  
Interface Resistance ◽  
Inhomogeneous Spin

This chapter introduces the concept of incoherent spin current. A diffusive spin current can be driven by spatial inhomogeneous spin density. Such spin flow is formulated using the spin diffusion equation with spin-dependent electrochemical potential. The chapter also proposes a solution to the problem known as the conductivity mismatch problem of spin injection into a semiconductor. A way to overcome the problem is by using a ferromagnetic semiconductor as a spin source; another is to insert a spin-dependent interface resistance at a metal–semiconductor interface.

scholarly journals Propagation of shear stress in strongly interacting metallic Fermi liquids enhances transmission of terahertz radiation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
D. Valentinis ◽  
J. Zaanen ◽  
D. van der Marel
Keyword(s):  
Shear Stress ◽  
Terahertz Radiation ◽  
Fermi Liquid ◽  
Zero Sound ◽  
Strongly Correlated Electron ◽  
Correlated Electron Systems ◽  
Correlated Electron ◽  
Collisionless Regime ◽  
Propagating Shear ◽  
Mass Enhancement

AbstractA highlight of Fermi-liquid phenomenology, as explored in neutral $$^3$$ 3 He, is the observation that in the collisionless regime shear stress propagates as if one is dealing with the transverse phonon of a solid. The existence of this “transverse zero sound” requires that the quasiparticle mass enhancement exceeds a critical value. Could such a propagating shear stress also exist in strongly correlated electron systems? Despite some noticeable differences with the neutral case in the Galilean continuum, we arrive at the verdict that transverse zero sound should be generic for mass enhancement higher than 3. We present an experimental setup that should be exquisitely sensitive in this regard: the transmission of terahertz radiation through a thin slab of heavy-fermion material will be strongly enhanced at low temperature and accompanied by giant oscillations, which reflect the interference between light itself and the “material photon” being the actual manifestation of transverse zero sound in the charged Fermi liquid.

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