Results 11 to 20 of about 2,596 (219)
Observation of nuclear-spin Seebeck effect [PDF]
Nature Communications, 2021 Thermoelectric effects are limited to electrons to occur, and disappear at low temperatures due to electronic entropy quenching. Here, the authors report thermoelectric generation caused by nuclear spins down to 100 mK due to nuclear-spin excitation in a
T. Kikkawa +12 more
doaj +9 more sources
Spin Seebeck effect of correlated magnetic molecules [PDF]
Scientific Reports, 2021 In this paper we investigate the spin-resolved thermoelectric properties of strongly correlated molecular junctions in the linear response regime. The magnetic molecule is modeled by a single orbital level to which the molecular core spin is attached by ...
Anand Manaparambil, Ireneusz Weymann
doaj +7 more sources
Picosecond Spin Seebeck Effect [PDF]
Physical Review Letters, 2017 We report time-resolved magneto-optic Kerr effect measurements of the longitudinal spin Seebeck effect driven by an interfacial temperature difference between itinerant electrons and magnons. The measured time-evolution of spin accumulation induced by laser-excitation indicates transfer of angular momentum across Au/Y$_3$Fe$_5$O$_{12}$ and Cu/Y$_3$Fe ...
Gyung-Min Choi +2 more
exaly +8 more sources
Longitudinal spin Seebeck effect contribution in transverse spin Seebeck effect experiments in Pt/YIG and Pt/NFO. [PDF]
Nat Commun, 2015 AbstractThe spin Seebeck effect, the generation of a spin current by a temperature gradient, has attracted great attention, but the interplay over a millimetre range along a thin ferromagnetic film as well as unintended side effects which hinder an unambiguous detection have evoked controversial discussions.
Meier D +12 more
europepmc +8 more sources
Origin of the spin Seebeck effect in compensated ferrimagnets [PDF]
Nature Communications, 2016 Ferrimagnets possess multiple spin sub-lattices resulting in a complex magnon band structure and subtle spin transport across interfaces. Here, the authors show how the spin Seebeck effect, the thermal generation of pure spin current, may be an effective
Stephan Geprägs +20 more
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Magnon Polarons in the Spin Seebeck Effect [PDF]
Physical Review Letters, 2016 6 pages, 4 figures, 1 ...
Takashi Kikkawa +2 more
exaly +11 more sources
Generic Seebeck effect from spin entropy [PDF]
The Innovation, 2021 How magnetism affects the Seebeck effect is an important issue of wide concern in the thermoelectric community but remains elusive. Based on a thermodynamic analysis of spin degrees of freedom on varied d-electron-based ferromagnets and antiferromagnets,
Peijie Sun +5 more
doaj +4 more sources
Antiferromagnetic Spin Seebeck Effect [PDF]
Physical Review Letters, 2016 We report on the observation of the spin Seebeck effect in antiferromagnetic MnF$_2$. A device scale on-chip heater is deposited on a bilayer of Pt (4 nm)/MnF$_2$ (110) (30 nm) grown by molecular beam epitaxy on a MgF$_2$ (110) substrate. Using Pt as a spin detector layer it is possible to measure thermally generated spin current from MnF$_2$ through ...
Wu, Stephen M +8 more
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Enhanced spin Seebeck effect via oxygen manipulation [PDF]
Nature Communications, 2023 Spin Seebeck effect (SSE) refers to the generation of an electric voltage transverse to a temperature gradient via a magnon current. SSE offers the potential for efficient thermoelectric devices because the transverse geometry of SSE enables to utilize ...
Jeong-Mok Kim +11 more
doaj +2 more sources
Cryogenic spin Seebeck effect [PDF]
Physical Review B, 2021 We present a theory of the non-linearities of the spin Seebeck effect (SSE) in a ferromagnetic nanowire at cryogenic temperatures. We adopt a microscopic quantum noise model based on a collection of two-level systems. At certain positions of Pt detectors to the wire, the transverse SSE changes sign as a function of temperature and/or temperature ...
Mehrdad Elyasi, Gerrit E. W. Bauer
openaire +5 more sources