Proposal for a local heating driven spin current generator

@article{Hwang2013ProposalFA,
  title={Proposal for a local heating driven spin current generator},
  author={Sun-Yong Hwang and Jong Soo Lim and Rosa L{\'o}pez and Minchul Lee and David S{\'a}nchez},
  journal={arXiv: Mesoscale and Nanoscale Physics},
  year={2013}
}
We propose a two-terminal spin-orbit interferometer with a hot molecule inserted in one of its arms to generate pure spin currents. Local heating is achieved by coupling the vibrational modes of the molecule to a third (phononic) reservoir. We show that this spin calorimetric effect is due to the combined influence of spin-dependent wave interference and inelastic scattering. Remarkably, the device converts heat flow into spin-polarized current even without applying any voltage or temperature… 

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References

SHOWING 1-10 OF 24 REFERENCES
Pure spin current in a three-terminal spin device in the presence of Rashba spin-orbit interaction
The authors propose a spin device with three normal metal leads via a quantum dot in the presence of Rashba spin-orbit interaction, which operates independently on a magnetic field or ferromagnetic
Thermally driven spin injection from a ferromagnet into a non-magnetic metal
The experimental demonstration of heat currents driving the injection of spins from a ferromagnetic into a non-magnetic metal establishes a new source of pure spin currents. The approach might
Magnon-driven quantum-dot heat engine
We investigate a heat to charge current converter consisting of a single-level quantum dot coupled to two ferromagnetic metals and one ferromagnetic insulator held at different temperatures. We
Spin separation via a three-terminal Aharonov–Bohm interferometers
We propose a three-terminal ring-type device which contains a single-level quantum dot (QD) to extract or separate the spin-up and the spin-down electrons that are injected into the QD from a middle
Interfacial charge-spin coupling: Injection and detection of spin magnetization in metals.
  • Johnson, Silsbee
  • Materials Science, Medicine
    Physical review letters
  • 1985
TLDR
Application of small static magnetic fields results in a Hanle effect which permits determination of the spin-relaxation time, and the unique features of the method should make it applicable to a wide range of studies.
Inelastic scattering and local heating in atomic gold wires.
TLDR
The theory is in quantitative agreement with experimental results and explains the experimentally observed mode selectivity, and the signatures of phonon heating are identified.
Bias-controllable intrinsic spin polarization in a quantum dot: Proposed scheme based on spin-orbit
We propose a novel scheme to efficiently polarize and manipulate the electron spin in a quantum dot. This scheme is based on the spin-orbit interaction and it possesses following advantages: (1) The
Observation of the spin Seebeck effect
TLDR
The spin Seebeck effect allows us to pass a pure spin current, a flow of electron spins without electric currents, over a long distance, and is directly applicable to the production of spin-voltage generators, which are crucial for driving spintronic devices.
Vibrational cooling, heating, and instability in molecular conducting junctions: full counting statistics analysis.
TLDR
The charge and heat exchange fluctuation theorem is confirmed in the steady-state limit, for both harmonic and anharmonic models and a reentrant behavior where an unstable junction can properly behave at a high enough bias is observed.
Rectification of thermal fluctuations in a chaotic cavity heat engine
We investigate the rectification of thermal fluctuations in a mesoscopic on-chip heat engine. The engine consists of a hot chaotic cavity capacitively coupled to a cold cavity which rectifies the
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