English
Related papers

Related papers: Sensitivity of Ag/Al Interface Specific Resistance…

200 papers

The observation of a two dimensional electron gas (2DEG) (1, 2), superconductivity (3, 4), magnetic effects (5) and electronic phase separation (6-8) at the interfaces of insulating oxides, especially LaAlO3/SrTiO3, has further enhanced the…

The structures of epitaxial ultrathin Co2FeAl/MgO(001) heterostructures relating to the interface-induced perpendicular magnetic anisotropy (PMA) were investigated using scanning transmission electron microscopy, energy dispersive x-ray…

Measurements of commensurability oscillations in GaAs/AlGaAs two-dimensional (2D) hole systems grown on GaAs (311)A substrates reveal a remarkable anisotropy: the amplitude of the measured commensurability oscillations along the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Jeng-Bang Yau , Jeng-Ping Lu , Harindran C. Manoharan , Mansour Shayegan

The challenge of increasing copper (Cu) resistivity with diminishing Cu interconnect dimensions in complementary metal-oxide-semiconductor (CMOS) transistors, along with the imperative for efficient electron transport paths to fulfill…

Magnetoresistance (MR) anisotropy in LaAlO3/SrTiO3 (LAO/STO) interfaces is compared between samples prepared in high oxygen partial pressure (PO2) of 10-4 mbar exhibiting quasi-two-dimensional (quasi-2D) electron gas and low PO2 of 10-6…

Strongly Correlated Electrons · Physics 2011-10-25 X. Wang , W. M Lü , A. Annadi , Z. Q. Liu , S. Dhar , T. Venkatesan , Ariando

Compositionally graded interfaces in power electronic devices eliminate dislocations, but they can also decrease thermal conduction, leading to overheating. We quantify the thermal resistances of GaN/AlN graded interfaces of varying…

Materials Science · Physics 2019-03-27 Ambroise van Roekeghem , Bjorn Vermeersch , Jesús Carrete , Natalio Mingo

In this communication, we report results of a high resolution sputter depth profiling analysis of a stack of 16 alternating MgO and ZnO nanolayers grown by atomic layer deposition (ALD) with thickness of ~5.5 nm per layer. We used an…

Materials Science · Physics 2014-03-21 S. V. Baryshev , J. A. Klug , A. V. Zinovev , C. E. Tripa , J. W. Elam , I. V. Veryovkin

Metastable superconductivity at \approx 50 K in the interfaces formed by metallic and oxidized magnesium (MgO) has been observed by ac magnetic susceptibility and electrical resistance measurements. The superconducting interfaces have been…

Superconductivity · Physics 2015-06-05 N. S. Sidorov , A. V. Palnichenko , O. M. Vyaselev

Understanding the interfaces of layered nanostructures is key to optimizing their structural and magnetic properties for the desired functionality. In the present work, the two interfaces of a few nm thick Fe layer in Ag-57Fe-Ag trilayers…

Materials Science · Physics 2025-02-11 Manisha Priyadarsini , Sharanjeet Singh , Ilya Sergeev , Olaf Leupold , Ajay Gupta , Dileep Kumar

The alpha/beta interface in Ti-6Al-2Sn-4Zr-6Mo (Ti-6246) is investigated via centre of symmetry analysis, both as-grown and after 10% cold work. Semi-coherent interface steps are observed at a spacing of 4.5 +/-1.13 atoms in the as-grown…

Half-Heusler(HH) alloys have shown promising thermoelectric properties in the medium and high temperature range. To harness these material properties for thermoelectric applications, it is important to realize electrical contacts with low…

Materials Science · Physics 2018-06-11 Yuping He , François Léonard , Catalin D. Spataru

Magnetic anisotropy is a key parameter to describe the exchange bias effect in heterostructures. In this paper, we describe explicit density functional calculations of the magnetic structure of an interface between the industrially…

Materials Science · Physics 2025-09-03 Robert A. Lawrence , Matt I. J. Probert

The magnetoresistance as a function of temperature and field for atomically flat interfaces between 8 unit cells of LaAlO3 and SrTiO3 is reported. Anomalous anisotropic behavior of the magnetoresistance is observed below 30 K for…

Strongly Correlated Electrons · Physics 2011-01-11 M. Sachs , D. Rakhmilevitch , M. Ben Shalom , S. Shefler , A. Palevski , Y. Dagan

In the investigations of antiferromagnetic (AF)/ ferromagnetic (FM) bilayer samples, often distinct experimental techniques yield different values for the measured exchange anisotropy field (HE). Using a simple microscopic model for…

Materials Science · Physics 2009-11-10 J. R. L. de Almeida , J. R. Steiner , S. M. Rezende

The semiconductor-metal junction is one of the most critical factors for high performance electronic devices. In two-dimensional (2D) semiconductor devices, minimizing the voltage drop at this junction is particularly challenging and…

The electrical resistivity and the anisotropic magnetoresistance (AMR) was investigated for Ni Co alloys at and below room temperature. The Ni Co alloy layers having a thickness of about 2 um were prepared by electrodeposition on Si wafers…

Materials Science · Physics 2016-07-08 B. G. Tóth , L. Péter , Á. Révész , J. Pádár , I. Bakonyi

In the investigations of antiferromagnetic (AF)/ ferromagnetic (FM) bilayer samples, often distinct experimental techniques yield different values for the measured exchange anisotropy field (HE). We propose that the observed discrepancy may…

Materials Science · Physics 2007-05-23 J. R. L. de Almeida , J. R. Steiner , S. M. Rezende

Ag/Fe/Ag and Cr/Fe/Cr trilayers with a single $25 nm$ thick ferromagnetic layer exhibit giant magnetoresistance (GMR) type behavior. The resistance decreases for parallel and transversal magnetic field alignements with a Langevin-type…

Materials Science · Physics 2016-08-15 J. Balogh , L. F. Kiss , A. Halbritter , I. Kézsmárki , G. Mihály

We report resistivity measurements from 0.03 K to 10 K in a dilute high mobility 2D electron system. Using an undoped GaAs/AlGaAs heterojunction in a gated field-effect transistor geometry, a wide range of densities, $0.16 \times 10^{10}…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 M. P. Lilly , J. L. Reno , J. A. Simmons , I. B. Spielman , J. P. Eisenstein , L. N. Pfeiffer , K. W. West , E. H. Hwang , S. Das Sarma

Combining the first-principles noncollinear calculations of scattering matrices with Andreev approximation, we investigated the spin-triplet Andreev reflection (AR) spectra for the interface between half-metallic ferromagnet Co$_{2}$MnSi…

Mesoscale and Nanoscale Physics · Physics 2013-06-13 Ling Tang