Double Barrier Magnetic Tunnel Junctions
Long-Range Phase Coherence in Double-Barrier Magnetic Tunnel Junctions with a Large Thick Metallic Quantum Well
... 2015) Double-barrier heterostructures are model systems for the study of electron tunneling and discrete energy levels in a quantum well ...epitaxial double MgAlO x barrier magnetic ...
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Double barrier magnetic tunnel junctions for innovative spintronic devices
... top barrier with a smaller area than the bottom ...the barrier translates on a larger number of electrons carrying torque per unit area corresponding to a larger field-like torque coming from the control ...
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Diffusive model of current-in-plane-tunneling in double magnetic tunnel junctions
... in double barrier magnetic tunnel junctions in diffusive ...in double junctions that are described by introducing two typical length ...of double barrier ...
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Low noise all-oxide magnetic tunnel junctions based on a La$_{0.7}$Sr$_{0.3}$Mn$_{O3}$/Nb:SrTiO$_3$ interface
... the tunnel barrier and at the electrode- barrier interface should lead to improved overall performance of the tunnel ...STO tunnel barrier in LSMO MTJs by a niobium-doped STO ...
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Perpendicular magnetic tunnel junctions with a synthetic storage or reference layer: A new route towards Pt- and Pd-free junctions
... the top soft layer SL is a single FeCoB layer only 1.4 nm thick, since it is now capped with Ta instead of MgO. The interest of these double magnetic tunnel junctions is that the STT ...
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Magnetic and transport properties of single and double perpendicular magnetic tunnel junctions
... perpendicular magnetic tunnel junctions focusing in particular on the materials ...diffusion barrier that prevents intermixing between CoFeB and ...planar junctions [Ike-08] ...
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Magnetization reversal driven by spin-transfer-torque in perpendicular shape anisotropy magnetic tunnel junctions
... spin-transfer-torque magnetic random-access memory (STT-MRAM) is one of the most promising emerging non- volatile memory technologies ...perpendicular magnetic anisotropy (iPMA) originated at the FeCoB ...
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Spin-dependent transport in antiferromagnetic tunnel junctions
... antiferromagnetic-based tunnel junctions using tight binding calculations in the framework of the Keldysh ...a tunnel barrier and significantly differs from the out-of-plane torques reported ...
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Asymmetric Magnetization Switching in Perpendicular Magnetic Tunnel Junctions: Role of the Synthetic Antiferromagnet’s Fringe Field
... teresis loop for no voltage. We obtain µ 0 H off = −30 mT in the compensated configuration and µ 0 H off = 120 mT in the saturated one. Their positions are noted in Fig. 2 as the vertical black lines. The evolution of the ...
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Influence of spin-transfer torque on thermally activated ferromagnetic resonance excitations in magnetic tunnel junctions
... the magnetic noise power spectral density in the ab- sence of spin-transfer ...based magnetic tunnel junctions is reported in ...on magnetic fluctuations is analyzed in ...alumina ...
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Spectroscopic and transport studies of Cox Fe1-x/MgO(001) -based magnetic tunnel junctions
... huge tunnel magnetoresistance (TMR) was the- oretically predicted in the single-crystalline Fe/MgO/Fe(001) ...based magnetic tunnel junctions (MTJs) is explained by con- sidering the full spin ...
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Magnetic resonance in superconducting junctions
... In the previous chapter we have shown the setup for the junction and given the tunnel Hamiltonian that we will now use for the evaluation of the current. In this chapter we use a point contact geometry, assuming ...
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Taming the resistive switching in Fe/MgO/V/Fe magnetic tunnel junctions: An ab initio study
... In Fig. 2 (c), we have considered the same large unit cell as in (b) but a vanadium vacancy in front of the oxygen. Finally, in Fig. 2 (d) we have used the same small unit cell as in (a) but V on top of Mg (case 2 in ...
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Competition between cotunneling, Kondo effect, and direct tunneling in discontinuous high-anisotropy magnetic tunnel junctions
... II. EXPERIMENTAL RESULTS A. Growth and characterization of the Co 75 Pt 25 nanoclusters Three different types of structure have been grown by sputtering onto thermally oxidized Si wafer substrates: one to determine the ...
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Tantalum superconducting tunnel junctions for infrared photon counting
... 2.1. Absorber epitaxy improvement Like a majority of photon counting detectors, STJ converts the incident energy into an excited charge population which gives an access to the deposited energy. Here, the photon-excited ...
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Tunnel junctions in nitride heterostructures for optoelectronic applications
... jonctions tunnel apportent une solution alternative aux problèmes qui limitent l'efficacité des diodes électroluminescentes émettant dans l’ultraviolet, notamment la forte résistivité des couches d’AlGaN dopées p ...
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Respective influence of in-plane and out-of-plane spin-transfer torques in magnetization switching of perpendicular magnetic tunnel junctions
... perpendicular magnetic tunnel junctions (pMTJ) constitute the storage element of spin-transfer torque magne- toresistive random access memory (STT-MRAM) [ 1 – 6 ...high tunnel ...
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Internal photoemission in molecular junctions: Parameters for interfacial barrier determinations
... molecular tunnel junction is often composed of two types of photocurrent: one involving an IPE process, which can be useful for determining energy level alignment and interfacial energy barriers, and one that ...
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Novel approach for nano-patterning magnetic tunnel junctions stacks at narrow pitch: A route towards high density STT-MRAM applications
... Spin-Transfer-Torque Magnetic Random Access Memory (STT-MRAM) based on out-of-plane magnetized MTJ (pMTJ) is one of the most promising emerging non-volatile memory ...the magnetic materials ...non- ...
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Transport électronique dans les jonctions tunnel magnétiques à double barrière
... Pierre-Yves Clément Thèse dirigée par Claire Baraduc et codirigée par Mair ChshievM. préparée au sein du Laboratoire Spintec et de l’Ecole doctorale de Physique.[r] ...
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