Magneto-Seebeck effect in Co2 FeAl/MgO/Co2 FeAl: first-principles calculations

Physical Chemistry Chemical Physics : PCCP
Jingyu LiZhenxiang Cheng

Abstract

The magneto-Seebeck effect has recently attracted considerable attention because of its novel fundamental physics and future potential application in spintronics. Herein, employing first-principles calculations and the spin-resolved Boltzmann transport theory, we have systematically investigated the electronic structures and spin-related transport properties of Co2FeAl/MgO/Co2FeAl multilayers with parallel (P) and anti-parallel (AP) magnetic alignment. Our results indicate that the sign of tunneling magneto-Seebeck (TMS) value with Co2/O termination is consistent with that of the measured experimental result although its value (-221%) at room temperature is smaller than the experimental one (-95%). The calculated spin-Seebeck coefficients of the Co2/O termination with P and AP states and the FeAl/O termination with the AP state are all larger than other typical Co2MnSi/MgO/Co2MnSi heterostructures. By analyzing the geometries, electronic structures, and magnetic behaviors of two different terminations (Co2/O and FeAl/O terminations), we find that the two terminations in the interface region form anti-bonding and bonding states, reconstructing the energy gap, changing the magnetic moment of O atoms, and improving the spin-polari...Continue Reading

References

Dec 15, 1994·Physical Review. B, Condensed Matter·P E Blöchl
Oct 15, 1996·Physical Review. B, Condensed Matter·G Kresse, J Furthmüller
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Jun 4, 2008·Physical Review Letters·Christian Heiliger, M D Stiles
Jul 26, 2011·Nature Materials·Marvin WalterChristian Heiliger
Nov 24, 2011·Physical Review Letters·Xingtao JiaGerrit E W Bauer
Feb 7, 2012·Nature Nanotechnology·J FlipseB J van Wees
Mar 22, 2012·Nature Communications·Weiwei LinStéphane Mangin
May 3, 2014·Physical Chemistry Chemical Physics : PCCP·X F YangJ F Feng
Mar 25, 2015·Physical Chemistry Chemical Physics : PCCP·Y S LiuX F Wang
May 20, 2015·Physical Chemistry Chemical Physics : PCCP·Li YuKailun Yao
Nov 22, 2017·Nature Communications·Alexander BoehnkeGünter Reiss
Dec 6, 2017·Nature Nanotechnology·Juan F SierraSergio O Valenzuela

❮ Previous
Next ❯

Citations

May 21, 2020·Nanotechnology·Brahim MarfouaJisang Hong
Mar 7, 2020·Sensors·Marcus Vinicius LopesMarcio Assolin Correa
Jun 27, 2019·Physical Chemistry Chemical Physics : PCCP·Jingyu LiZhenxiang Cheng

❮ Previous
Next ❯

Software Mentioned

BoltzTraP
Vienna Ab initio Simulation Package ( VASP )

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.