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相关论文: Electronic structure of short-period ZnSe/ZnTe sup…

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The interlayer exchange coupling mediated by the valence band electrons in $\textrm{(MnTe)}_{\textrm{m}} \textrm{(ZnTe)}_{\textrm{n}}$ superlattices has been examined theoretically. The calculations have been performed within the framework…

软凝聚态物质 · 物理学 2007-05-23 R. Wasowicz

The structural and electronic properties of new structural cubic (GaN)$_1$/(ZnO)$_1$ superlattice have been investigated using two different theoretical techniques: the full potential-linearized augmented plane wave (FP-LAPW) method and the…

材料科学 · 物理学 2013-04-30 M. R. Boufatah , A. E. Merad

Lead and tin chalcogenides have been studied widely due to their promising thermoelectric (TE) properties. Further enhancement in their TE efficiency has been reported upon the reduction of the dimension, which is an important feature in…

材料科学 · 物理学 2020-10-14 Abhiyan Pandit , Bothina Hamad

Electronic band structure and optical properties of zinc monochalcogenides with zinc-blende- and wurtzite-type structures were studied using the ab initio density functional method within the LDA, GGA, and LDA+U approaches. Calculations of…

软凝聚态物质 · 物理学 2009-11-13 S. Zh. Karazhanov , P. Ravindran , A. Kjekshus , H. Fjellvag , B. G. Svensson

We have measured the specific heat of zincblende ZnS for several isotopic compositions and over a broad temperature range (3 to 1100 K). We have compared these results with calculations based on ab initio electronic band structures,…

材料科学 · 物理学 2015-05-14 M. Cardona , R. K. Kremer , R. Lauck , G. Siegle , A. Munoz , A. H. Romero , A. Schindler

By means of first-principles calculations, we explore systematically the geometric, electronic and piezoelectric properties of multilayer SnSe. We find that these properties are layer-dependent, indicating that the interlayer interaction…

材料科学 · 物理学 2016-03-08 Wuzhang Fang , Li-Chuan Zhang , Guangzhao Qin , Qing-Bo Yan , Qing-Rong Zheng , Gang Su

We investigate 1, 2, 3, and 4 monolayers of iron grown on the (001) surface of ZnSe using spin density functional theory, plane-wave expansion, and ultrasoft pseudopotentials. An ideal structure of the interface is plausible due to the very…

其他凝聚态物理 · 物理学 2007-05-23 H. Dobler , D. Strauch

We explore CdTe fractional monolayer quantum dots (QDs) in a ZnCdSe host matrix for potential application in an intermediate band solar cell device. Careful consideration has been taken during the initiation of the growth process of QDs by…

应用物理 · 物理学 2020-01-29 V. Deligiannakis , G. Ranepura , I. L. Kuskovsky , M. C. Tamargo

2H phase (trigonal prismatic D3h) of layered two-dimensional (2D) transition metal dichalcogenides (TMDs) have attracted a lot of interests due to the superior electronic and optoelectronic properties. However, flexible electronic devices…

计算物理 · 物理学 2019-06-04 Yi Wang , Zhibin Gao , Jun Zhou

The correlated electronic structure of the submonolayer surface systems Sn/Si(111) and Sn/Ge(111) is investigated by density-functional theory (DFT) and its combination with explicit many-body methods. Namely, the dynamical mean-field…

材料科学 · 物理学 2015-03-13 Sergej Schuwalow , Daniel Grieger , Frank Lechermann

In this work we use density functional theory (DFT) to investigate the influence of semi-local exchange and correlation effects on the electronic and optical properties of zinc oxide. We find that the inclusion of such effects using the…

材料科学 · 物理学 2019-05-01 R. M. V. S. Almeida , A. L. da Rosa , J. S. de Almeida

We investigate the electronic structure and defect properties of Sn- and Ge- doped ZnTe by first-principles calculations within the DFT+$GW$ formalism. We find that $(\text{Sn}_\text{Zn})$ and $(\text{Ge}_\text{Zn})$ introduce isolated…

材料科学 · 物理学 2017-11-15 Mauricio A. Flores

We study the magnetic structure of the (LaMnO$_3$)$_{2n}$/(SrMnO$_3$)$_n$ superlattices from density-functional calculations. In agreement with the experiments, we find that the magnetism changes with the layer thickness `n'. The reason for…

材料科学 · 物理学 2010-03-10 B. R. K. Nanda , S. Satpathy

Using ab-initio calculations we reveal the nature of the insulating phase recently found experimentally in monolayer 1T-NbSe$_2$. We find soft phonon modes in a large parts of the Brillouin zone indicating the strong-coupling nature of a…

强关联电子 · 物理学 2018-07-25 E. Kamil , J. Berges , G. Schönhoff , M. Rösner , M. Schüler , G. Sangiovanni , T. O. Wehling

The elastic, electronic and optical properties of MNNi3 (M= Zn, Sn and Cu) have been calculated using the plane-wave ultrasoft pseudopotential technique which is based on the first-principles density functional theory (DFT) with generalized…

材料科学 · 物理学 2015-05-30 M. A. Helal , A. K. M. A. Islam

The fabrication of ZnSe/ZnTe superlattices grown by the process of rotating the substrate in the presence of an inhomogeneous flux distribution instead of successively closing and opening of source shutters is studied via Monte Carlo…

材料科学 · 物理学 2009-11-07 H. Jeong , B. Kahng , S. Lee , C. Y. Kwak , A. -L. Barabasi , J. K. Furdyna

In graphene moir\'e superlattices, electronic interactions between layers are mostly hidden as band structures get crowded because of folding, making their interpretation cumbersome. Here, the evolution of the electronic band structure as a…

介观与纳米尺度物理 · 物理学 2021-09-01 Francisco Sanchez-Ochoa , Andres Botello-Mendez , Cecilia Noguez

The interface electronic structure of correlated LaTiO$_3$/SrTiO$_3$ superlattices is investigated by means of the charge self-consistent combination of the local density approximation (LDA) to density functional theory (DFT) with dynamical…

强关联电子 · 物理学 2013-06-07 Frank Lechermann , Lewin Boehnke , Daniel Grieger

In this article we employ density functional theory in the generalized gradient approximation to investigate the structural and electronic properties of the solid solution alloy $\text{Zn}\text{Se}_x\text{S}_{1-x}$ in the wurtzite…

材料科学 · 物理学 2022-05-18 S. Sarkar , O. Eriksson , D. D. Sarma , I. Di Marco

Optical properties of the short period {CdO/ZnO} superlattices grown by plasma assisted MBE were analyzed. The superlattice (SLs) structures were successfully obtained at different growth temperatures from 360 to 550 {\deg}C. Interestingly,…

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