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Related papers: Proposal for a dual spin filter based on [VO(C$_3$…

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A novel scheme for spin filters is proposed by studying the coherent transport of electrons through the quantum wires with lateral magnetic modulations. Unlike other schemes in the literature, the modulation in our scheme is much weaker…

Condensed Matter · Physics 2007-05-23 J. Zhou , Q. W. Shi , M. W. Wu

The superconducting gap function of Sr$_2$RuO$_4$ was investigated by means of quasiparticle reflection and transmission at the normal conductor-superconductor interface of Sr$_2$RuO$_4$-Pt point contacts. We found two distinguishly…

Superconductivity · Physics 2009-10-31 F. Laube , G. Goll , H. v. Löhneysen , M. Fogelström , F. Lichtenberg

The double perovskite Ba$_{2}$NaOsO$_{6}$ (BNOO), an exotic example of a very high oxidation state (heptavalent) osmium $d^1$ compound and also uncommon by being a ferromagnetic Mott insulator without Jahn-Teller (JT) distortion, is modeled…

Strongly Correlated Electrons · Physics 2015-06-23 Shruba Gangopadhyay , Warren E. Pickett

We investigate the possibility of the electrical control of spin transfer in monoatomic chains incorporating spin-impurities. Our theoretical framework is the mixed quantum-classical (Ehrenfest) description of the spin dynamics, in the…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Anna Pertsova , Maria Stamenova , Stefano Sanvito

Chiral induced spin selectivity (CISS) describes efficient spin filtering by chiral molecules. This phenomenon has led to nanoscale manipulation of quantum spins with promising applications to spintronics and quantum computing, since its…

Quantum Physics · Physics 2021-01-01 Xiaopeng Li , Jue Nan , Xiangcheng Pan

Spin dependent transport has been investigated for an {\it open shell singlet} diiron-oxo cluster. Currents and magnetoresistances have been studied, as a function of spin state, within the non-equilibrium Green's function approach. The…

Mesoscale and Nanoscale Physics · Physics 2014-06-18 Rui-Ning Wang , Jorge H. Rodriguez , Wu-Ming Liu

We show that a quasiperiodic magnetic chain comprising magnetic atomic sites sequenced in Fibonacci pattern can act as a prospective candidate for spin filters for particles with arbitrary spin states. This can be achieved by tuning a…

Mesoscale and Nanoscale Physics · Physics 2019-04-29 Biplab Pal

Bio-spinterfaces present numerous opportunities to study spintronics across the biomolecules attached to (ferro)magnetic electrodes. While it offers various exciting phenomena to investigate, it's simultaneously challenging to make stable…

In the quest of green energy, Solid Oxide Fuel Cells (SOFC) have drawn considerable attention for chemical-to-electric energy conversion. In the present paper, we report an enhancement of ionic conductivity in Cu2P2-xVxO7 by vanadium…

The influence of external magnetic field switching $"$on$"$ and $"$off$"$ on the non-stationary spin-polarized currents in the system of correlated single-level quantum dot coupled to non-magnetic electronic reservoirs has been analyzed. It…

Mesoscale and Nanoscale Physics · Physics 2017-06-29 V. N. Mantsevich , N. S. Maslova , P. I. Arseyev

We demonstrate an electrically controlled high-spin (S=5/2) to low-spin (S=1/2) transition in a three-terminal device incorporating a single Mn2+ ion coordinated by two terpyridine ligands. By adjusting the gate-voltage we reduce the…

Electrically driven insulator-metal transitions in prototypical quantum materials such as VO2 offer a foundational platform for designing novel solid-state devices. Tuning the V: O stoichiometry offers a vast electronic phase space with…

Chirality-induced spin selectivity is a spin-splitting phenomenon from a helical structure with a considerably effective spin-orbit coupling. This unexpectedly large spin-splitting phenomenon has been experimentally observed in chiral…

Strongly Correlated Electrons · Physics 2024-05-08 Meng Xu , Yan Chen

We assess the potential of the ferrimagnetic spinel ferrites CoFe2O4 and NiFe2O4 to act as spin filtering barriers in magnetic tunnel junctions. Our study is based on the electronic structure calculated by means of first-principles density…

Materials Science · Physics 2015-06-12 Nuala M. Caffrey , Daniel Fritsch , Thomas Archer , Stefano Sanvito , Claude Ederer

Unconventional quantum states, most notably the two-dimensional (2D) superconductivity, have been realized at the interfaces of oxide heterostructures where they can be effectively tuned by the gate voltage ($V_G$). Here we report that the…

Superconductivity · Physics 2022-08-09 Xiangyu Hua , Fanbao Meng , Zongyao Huang , Zhaohang Li , Shuai Wang , Binghui Ge , Ziji Xiang , Xianhui Chen

Doubly dipolar molecules exhibit complex internal spin-dynamics when electric and magnetic fields are both applied. Near magnetic trap minima, these spin-dynamics lead to enhancements in Majorana spin-flip transitions by many orders of…

Atomic Physics · Physics 2018-01-03 David L. Reens , Hao Wu , Tim Langen , Jun Ye

We study spin-dependent interband resonant tunneling in double-barrier InAs/AlSb/ GaMnSb heterostructures. We demonstrate that these structures can be used as spin filters utilizing spin-selective tunneling of electrons through the…

Materials Science · Physics 2009-11-07 A. G. Petukhov , D. O. Demchenko , A. N. Chantis

Solid state quantum emitters with spin registers are promising platforms for quantum communication, yet few emit in the narrow telecom band necessary for low-loss fiber networks. Here we create and isolate near-surface single vanadium…

A superconducting double spin valve device is proposed. Its operation takes advantage of the interplay between the spin-filtering effect of ferromagnetic insulators and superconductivity-induced out-of-equilibrium transport. Depending on…

Mesoscale and Nanoscale Physics · Physics 2009-08-03 Francesco Giazotto

We report on spin transport along double-helical molecular systems by considering various contact configurations and asymmetries between the two helical strands in the regime of completely coherent charge transport. Our results reveal that…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Ai-Min Guo , E. Díaz , C. Gaul , R. Gutierrez , F. Domínguez-Adame , G. Cuniberti , Qing-feng Sun