Tunnel magneto-Seebeck effect: Improving the effect size Spintronics and spincaloritronics
نویسنده
چکیده
منابع مشابه
On/off switching of bit readout in bias-enhanced tunnel magneto-Seebeck effect
Thermoelectric effects in magnetic tunnel junctions are promising to serve as the basis for logic devices or memories in a "green" information technology. However, up to now the readout contrast achieved with Seebeck effects was magnitudes smaller compared to the well-established tunnel magnetoresistance effect. Here, we resolve this problem by demonstrating that the tunnel magneto-Seebeck effe...
متن کاملThermoelectricity and disorder of FeCo/MgO/FeCo magnetic tunnel junctions
We compute the thermoelectric transport parameterized by the Seebeck coefficient and thermal/electric conductance of random-alloy FeCo/MgO/FeCo(001) magnetic tunnel junctions (MTJs) from first principles using a generalized Landauer-Büttiker formalism. The thermopower is found to be typically smaller than those of Fe/MgO/Fe(001) MTJs. The (magneto-)Seebeck effect is sensitive to the details of ...
متن کاملSpintronics - A New Hope for the Digital World
In our electronic world, since the discovery of electron by J J Thomson in 1897, scientists have been working strenuously to build the Digital World that we enjoy today. To satisfy a common man‘s need, researchers have been scratching the very basis of electronics – ̳Electron‘. All that we are using today is the flow of a bundle of electrons to determine the electronic outcome instead of the ba...
متن کاملSpin Caloritronics, origin and outlook
Spin caloritronics refers to research efforts in spintronics when a heat current plays a role. In this review, we start out by reviewing the predictions that can be drawn from the thermodynamics of irreversible processes. This serves as a conceptual framework in which to analyze the interplay of charge, spin and heat transport. This formalism predicts tensorial relations between vectorial quant...
متن کاملTime-resolved measurement of the tunnel magneto-Seebeck effect in a single magnetic tunnel junction.
Recently, several groups have reported spin-dependent thermoelectric effects in magnetic tunnel junctions. In this paper, we present a setup for time-resolved measurements of thermovoltages and thermocurrents of a single micro- to nanometer-scaled tunnel junction. An electrically modulated diode laser is used to create a temperature gradient across the tunnel junction layer stack. This laser mo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2016