Giant thermoelectric effects in a proximity-coupled superconductor–ferromagnet device
نویسندگان
چکیده
منابع مشابه
Giant thermoelectric effects in a proximity-coupled superconductor–ferromagnet device
The usually negligibly small thermoelectric effects in superconducting heterostructures can be boosted dramatically due to the simultaneous effect of spin splitting and spin filtering. Building on an idea of our earlier work (Machon et al 2013 Phys. Rev. Lett. 110 047002), we propose realistic mesoscopic setups to observe thermoelectric effects in superconductor heterostructures with ferromagne...
متن کاملNonlocal thermoelectric effects and nonlocal Onsager relations in a three-terminal proximity-coupled superconductor-ferromagnet device.
We study thermal and charge transport in a three-terminal setup consisting of one superconducting and two ferromagnetic contacts. We predict that the simultaneous presence of spin filtering and of spin-dependent scattering phase shifts at each of the two interfaces will lead to very large nonlocal thermoelectric effects both in clean and in disordered systems. The symmetries of thermal and elec...
متن کاملGiant Proximity Effects in Confined Superfluid 4He
Figure 2: Confinements. An scanning electron microscope image of (2 μm)3 boxes etched out of thermally grown silicon oxide. These boxes are filled with liquid helium creating an extremely well defined array of uniform confinements. Figure 1: Confinement Cell. A diagram (not to scale) of a cell used to confine liquid helium. This consists of an array of (2 μm)3 boxes etched in a thermally grown ...
متن کاملGiant Proximity Effect and Coupling in Superfluid
Previous measurements of the specific heat of helium-4 (4He) confined in all three spatial dimensions suggested a coupling between neighbor ing confinements through the tiny channels used to fill them [1]. Measurements of the superfluid fraction in the filling channels also suggested an enhancement attributed to their proximity to the larger regions of superfluid [1]. Recent measurements of con...
متن کاملGiant proximity effect in cuprate superconductors.
Using an advanced molecular beam epitaxy system, we have reproducibly synthesized atomically smooth films of high-temperature superconductors and uniform trilayer junctions with virtually perfect interfaces. We found that supercurrent runs through very thick barriers. We can rule out pinholes and microshorts; this "giant proximity effect" (GPE) is intrinsic. It defies the conventional explanati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2014
ISSN: 1367-2630
DOI: 10.1088/1367-2630/16/7/073002