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By performing density functional theory (DFT) +$U$ calculations, we systematically study the electronic, mechanical, tensile, and thermodynamic properties of AmO$_{2}$. The experimentally observed antiferromagnetic insulating feature [J.…

材料科学 · 物理学 2012-11-05 Yong Lu , Yu Yang , Fawei Zheng , Bao-Tian Wang , Ping Zhang

We combine $^{57}$Fe M\"ossbauer spectroscopy and $^{57}$Fe nuclear resonant inelastic x-ray scattering (NRIXS) in nanoscale polycrystalline [bcc-$^{57}$Fe/MgO] multilayers with various Fe layer thicknesses and layer-resolved…

Metal-semiconductor contacts are a pillar of modern semiconductor technology. Historically, their microscopic understanding has been hampered by the inability of traditional analytical and numerical methods to fully capture the complex…

材料科学 · 物理学 2016-04-13 Daniele Stradi , Umberto Martinez , Anders Blom , Mads Brandbyge , Kurt Stokbro

We present the electronic band structure of the interfaces $YBa_2Cu_3O_7/GaAs$ (direct gap) and $YBa_2Cu_3O_7/AlAs$ (indirect gap) in different configurations calculated using the Density Functional Theory as in the Wien2k code within the…

材料科学 · 物理学 2012-08-08 R. Torres , R. Baquero

The interface between FePt--L1$_0$ and MgO(001) alloys has been studied using density functional calculations. Because the stacking of the face-centered tetragonal L1$_0$ phase is formed by alternating Fe and Pt planes, both the Fe- and…

材料科学 · 物理学 2015-06-18 R Cuadrado , R W Chantrell

The distribution of ions and their impact on the structure of electrolyte interfaces plays an important role in many applications. Interestingly, recent experimental studies have suggested the preferential accumulation of $SO_4^{2-}$ ions…

化学物理 · 物理学 2026-05-11 Ademola Soyemi , Tibor Szilvasi

Low-energy light ion beams are an essential resource in lithography for nanopatterning magnetic materials and interfaces due to their ability to modify the structure and properties of metamaterials. Here we create…

The observation of magnetic interaction at the interface between nonmagnetic oxides has attracted much attention in recent years. In this report, we show that the Kondo-like scattering at the SrTiO3-based conducting interface is enhanced by…

强关联电子 · 物理学 2016-05-16 K. Han , N. Palina , S. W. Zeng , Z. Huang , C. J. Li , W. X. Zhou , D-Y. Wan , L. C. Zhang , X. Chi , R. Guo , J. S. Chen , T. Venkatesan , A. Rusydi , Ariando

We propose the design of low strained and energetically favourable mono and bilayer graphene overlayer on anatase TiO$_2$ (001) surface and examined the electronic structure of the interface with the aid of first principle calculations. In…

材料科学 · 物理学 2020-12-22 Shashi B. Mishra , Somnath C. Roy , B. R. K. Nanda

We investigate how different interface geometries of an Al/Al$_2$O$_3$ junction, a common component of modern tunnel devices, affect electron transport through the tunnel barrier. We study six distinct Al/Al$_2$O$_3$ interfaces which differ…

介观与纳米尺度物理 · 物理学 2016-03-23 M Koberidze , A V Feshchenko , M J Puska , R M Nieminen , J P Pekola

The two-dimensional electron gas (2DEG) at the non-isostructural interface between spinel gamma-Al2O3 and perovskite SrTiO3 is featured by a record electron mobility among complex oxide interfaces in addition to a high carrier density up to…

材料科学 · 物理学 2017-08-02 W. Niu , Y. L. Gan , Y. Zhang , D. V. Christensen , M. von Soosten , X. F. Wang , Y. B. Xu , R. Zhang , N. Pryds , Y. Z. Chen

Fifteen years have passed since graphene was first isolated on the substrate from bulk graphite. During that period, 2D layered materials with intrinsic band gaps have been realized. Although many exciting results have been reported for…

材料科学 · 物理学 2020-12-03 Kosuke Nagashio

A two-dimensional electron gas (2DEG) forms at the interface of complex oxides like $SrTiO_{3}$ (STO) and $LaTiO_{3}$ (LTO), despite each material having a low native conductivity, as a band and a Mott insulator, respectively. The interface…

Since the 1960's when Gordon Moore proposed that the transistor density in our electronic devices should double every two years while the cost is halved, the semiconductor industry has taken this statement to heart. Over the last few…

材料科学 · 物理学 2022-07-27 Aditya Muralidharan

A large variety of transport properties have been observed at the interface between the insulating oxides SrTiO3 and LaAlO3 such as insulation, 2D interface metallicity, 3D bulk metallicity, Kondo scattering, magnetism and…

强关联电子 · 物理学 2008-09-08 M. Huijben , A. Brinkman , G. Koster , G. Rijnders , H. Hilgenkamp , D. H. A. Blank

Since the discovery of two-dimensional electron gas (2DEG) at the oxide interface of LaAlO3/SrTiO3, improving carrier mobility has become an important issue for device applications. In this paper, by using an alternate polar perovskite…

强关联电子 · 物理学 2016-03-29 Z. Huang , K. Han , S. W. Zeng , M. Motapothula , W. M. Lü , C. J. Li , W. X. Zhou , J. M. D. Coey , T. Venkatesan , Ariando

A new method which allows one to study multiple coherent reflection/transmissions by partially transparent interfaces, (e.g., in multi-layer mesoscopic structures or grain boundaries in high-Tc's), in the framework of the quasiclassical…

超导电性 · 物理学 2009-10-31 A. Shelankov , M. Ozana

We have investigated the effects of low-energy ion beam irradiations using argon clusters on the chemical and electronic properties of LaAlO3/SrTiO3 (LAO/STO) heterointerfaces by combining X-ray photoelectron spectroscopy (XPS) and…

Using tunneling spectroscopy we have measured the spectral density of states of the mobile, two-dimensional electron system generated at the LaAlO3-SrTiO3 interface. As shown by the density of states the interface electron system differs…

The influence of nitrogen incorporation on the energy distribution of interface states in the (100)Si/HfO2 system and their passivation by hydrogen have been studied. The results are compared to those of nominally N-free samples. The…

材料科学 · 物理学 2014-06-26 Y. G. Fedorenko , L. Truong , V. V. Afanas'ev , A. Stesmans , Z. Zhang , S. A. Campbell