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Perpendicular magnetic tunnel junction with MgAl2O4 barrier is investigated. It is found that reactive RF sputtering with O2 is essential to obtain strong perpendicular magnetic anisotropy and large tunneling magnetoresistance in…

The two-dimensional electron gas (2DEG) found in KTaO3-based interfaces has garnered attention due to its remarkable electronic properties. In this study, we investigated the conducting system embedded at the Si3N4/Al//KTO(110)…

The deposition of a thin oxide layer at metal/semiconductor interfaces has been previously reported as a means of reducing contact resistance in 2D electronics. Using X-ray photoelectron spectroscopy with in-situ Ti deposition, we fabricate…

Materials Science · Physics 2019-10-10 Keren M. Freedy , David H. Olson , Patrick E. Hopkins , Stephen J. McDonnell

Anisotropic resistivities of Bi_2Sr_2Ca_{1-x}Er_xCu_2O_8 single crystals were measured and analyzed from 4.2 to 500 K with special interest in the parent antiferromagnetic insulator of x=1.0. Although the resistivity is semiconducting along…

Superconductivity · Physics 2009-10-31 T. Kitajima , T. Takayanagi , T. Takemura , I. Terasaki

Anomalous Hall effect studies were performed at 300 K on Si/Fe multilayers prepared by dc magnetron sputtering. About 60 times enhancement in the saturation Hall resistance and 80 times enhancement in anomalous Hall coefficient are obtained…

Materials Science · Physics 2026-01-19 S. S. Das , M. Senthil Kumar

The acoustic mismatch model and the diffuse mismatch model have been widely used to predict the thermal interface conductance. However, the acoustic mismatch model (diffuse mismatch model) is based on the hypothesis of a perfectly smooth…

Mesoscale and Nanoscale Physics · Physics 2018-12-10 Yingying Zhang , Dengke Ma , Yi Zang , Nuo Yang

We propose the atomic structures of the 4H-SiC/SiO$_2$ interface for the $a$, $m$, C, and Si faces after NO annealing. Our proposed structures preferentially form at the topmost layers of the SiC side of the interface, which agrees with the…

Materials Science · Physics 2024-01-09 Naoki Komatsu , Mizuho Ohmoto , Mitsuharu Uemoto , Tomoya Ono

For the clear understanding of the role of interface reaction between top metal electrode and titanium oxide layer, we investigated the effects of various top metals on the resistive switching in Metal/a-TiO2/Al devices. The top Al device…

Materials Science · Physics 2010-07-16 Hu Young Jeong , Jeong Yong Lee , Sung-Yool Choi

We investigated electronic structure and magnetic anisotropy in the Fe/MgO interface of magnetic metal and dielectric insulator under the Cr layer of small electronegativity, by means of the first-principles density functional approach. The…

Materials Science · Physics 2017-08-09 Nurul Ikhsan , Tomosato Kanagawa , Indra Pardede , Masao Obata , Tatsuki Oda

We find the current voltage characteristics of a 2DEG-S interface in magnetic field taking into account the surface roughness. Typically in experiments $L/2R_c\gtrsim 3$, where $L$ is the surface length and $R_c$ is the cyclotron radius.…

Mesoscale and Nanoscale Physics · Physics 2007-06-22 Nikolai M. Chtchelkatchev , Igor S. Burmistrov

The shear strength and the corrosion resistance of the fiber/matrix interface after immersion in simulated body fluid was studied in poly-lactic acid/Mg fiber composites. The shear strength of the interface was measured by means of push-out…

Medical Physics · Physics 2021-09-03 Wahaaj Ali , Mónica Echeverry-Rendón , Alexander Kopp , Carlos González , Javier LLorca

Precious metal alloys enables new possibilities to tailor materials for specific optical functions. Here we present a systematic study of the effects of a nanoscale alloying on the permittivity of Au-Ag-Cu metals at 38 different atomic…

Heterostructures increasingly attracted attention over the past several years to enable various optoelectronic and photonic applications. In this work, atomically thin interfaces of Ir/Al2O3 heterostructures compatible with…

Many of the most interesting and technologically important electronic materials discovered in the past two decades have two common features: a layered crystal structure and strong interactions between electrons. Two of the most fundamental…

Strongly Correlated Electrons · Physics 2009-11-11 Malcolm P. Kennett , Ross H. McKenzie

Inspired by the unique properties of graphene, the focus in the literature is now on investigations of various two-dimensional (2D) materials with the aim to explore their properties for future applications. The group IV analogues of…

Materials Science · Physics 2020-03-24 J. Shah , H. M. Sohail , R. I. G. Uhrberg , W. Wang

Annealing of crystalline multilayers composed of two miscible elements usually causes interfacial mixing of the constituent atoms, possibly leading to the formation of binary alloys at the interfaces. Magnetron sputtered c-Ni/a-Zr…

Materials Science · Physics 2021-10-01 Debarati Bhattacharya , Vijay Karki , Surendra Singh , T. V. Chandrasekhar Rao

The resistance of multilayers with interface roughness on a length scale which is large compared to the atomic spacing is computed in several cases via the Boltzmann equation. This type of roughness is common in magnetic multilayers. When…

Materials Science · Physics 2010-01-12 Jason Alicea , Selman Hershfield

We report on our investigation of the electrical properties of metal/Al2O3/GaN metal-insulator-semiconductor (MIS) capacitors. We determined the conduction band offset and interface charge density of the alumina/GaN interface by analyzing…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 Michele Esposto , Sriram Krishnamoorthy , Digbijoy N. Nath , Sanyam Bajaj , Ting-Hsiang Hung , Siddharth Rajan

The geometry and structure of an interface ultimately determines the behavior of devices at the nanoscale. We present a generic method to determine the possible lattice matches between two arbitrary surfaces and to calculate the strain of…

Materials Science · Physics 2017-04-26 Daniele Stradi , Line Jelver , Søren Smidstrup , Kurt Stokbro

We study zigzag interfaces between insulating compounds that are isostructural to graphene, specifically II-VI, III-V and IV-IV two-dimensional (2D) honeycomb insulators. We show that these one-dimensional interfaces are polar, with a net…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 N. C. Bristowe , Massimiliano Stengel , P. B. Littlewood , Emilio Artacho , J. M. Pruneda