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Related papers: Band structure of Cd$_3$As$_2$ from Shubnikov - de…

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We have used angle resolved photoemission spectroscopy to investigate the band structure of ReS$_2$, a transition-metal dichalcogenide semiconductor with a distorted 1T crystal structure. We find a large number of narrow valence bands,…

We have studied the structural and electronic properties of defect chalcopyrite semiconductors AAl2Se4 (A = Ag, Cu, Cd, Zn) using Density Functional Theory (DFT) based first principle technique within Tight binding Linear Muffin Tin orbital…

Materials Science · Physics 2015-05-20 S. Mishra , B. Ganguli

Energy band structures are calculated for the new superconductor MgB$_2$ and the related compounds by using the LDA and an FLAPW method. It is found that the strong three dimensional network in low-lying $\pi$ bands brings about two…

Superconductivity · Physics 2009-11-07 Hisatomo Harima

The Shubnikov-de Haas effect is used to explore the conduction band edge of high mobility SrTiO3 films doped with La. The results largely confirm the earlier measurements by Uwe et al. [Jap. J. Appl. Phys. 24, Suppl. 24-2, 335 (1985)]. The…

Cadmium arsenide (Cd3As2) - a time-honored and widely explored material in solid-state physics - has recently attracted considerable attention. This was triggered by a theoretical prediction concerning the presence of 3D symmetry-protected…

Mesoscale and Nanoscale Physics · Physics 2019-01-10 I. Crassee , R. Sankar , W. -L. Lee , A. Akrap , M. Orlita

Silicene, the two-dimensional (2D) allotrope of silicon has very recently attracted a lot of attention. It has a structure that is similar to graphene and it is theoretically predicted to show the same kind of electronic properties which…

Materials Science · Physics 2017-12-07 W. Wang , W. Olovsson , R. I. G. Uhrberg

Rapid design and development of the emergent ultra-wide bandgap semiconductors Ga$_2$O$_3$ and Al$_2$O$_3$ requires a compact model of their electronic structures, accurate over the broad energy range accessed in future high-field,…

Mesoscale and Nanoscale Physics · Physics 2022-11-01 Yifan , Zhang , Mengren , Liu , Guru Khalsa , Debdeep Jena

We report ab initio calculations of the electronic band structure and the phonon dispersion relations of the zincblende-type mercury chalcogenides (beta-HgS, HgSe, and HgTe). The latter have been used to evaluate the temperature dependence…

Materials Science · Physics 2009-08-26 M. Cardona , R. K. Kremer , R. Lauck , G. Siegle , A. Munoz , A. H. Romero

The band structures of 6H and 4H SiC calculated by means of the FP-LMTO method are used to determine the effective mass tensors for their conduction-band minima. The results are shown to be consistent with recent optically detected…

mtrl-th · Physics 2009-10-28 Walter R. L. Lambrecht , Benjamin Segall

The electronic and atomic structure of a bulk 2D layered van-der-Waals compound CdPS3 was studied in the low (R3) and room (C2/m) temperature phases using first-principles calculations within the periodic linear combination of atomic…

Materials Science · Physics 2020-12-23 A. Kuzmin

The low energy band structure near the band gap determines the electrical performance of thermoelectric materials. Here, by using the hybrid-density functional theory (hybrid-DFT) calculations, we calculate the low energy band structure of…

Materials Science · Physics 2017-04-19 Sudong Park , Byungki Ryu

Heterostructures made of transition metal oxides are new tailor-made materials which are attracting much attention. We have constructed a 6-band k.p Hamiltonian and used it within the envelope function method to calculate the subband…

Mesoscale and Nanoscale Physics · Physics 2014-01-09 L. W. van Heeringen , G. A. de Wijs , A. McCollam , J. C. Maan , A. Fasolino

Previous band structure calculations predicted Ag3AuSe2 to be a semiconductor with a band gap of approximately 1 eV. Here, we report single crystal growth of Ag3AuSe2 and its transport and optical properties. Single crystals of Ag3AuSe2…

We report the synthesis and characterization of a Si-based ternary semiconductor Mg$_3$Si$_2$Te$_6$, which exhibits a quasi-two-dimensional structure, where the trigonal Mg$_2$Si$_2$Te$_6$ layers are separated by Mg ions.…

Layered indium selenides ($In_{2}Se_{3}$) have recently been discovered to host robust out-of-plane and in-plane ferroelectricity in the $\alpha$ and $\beta$' phases, respectively. In this work, we utilise angle-resolved photoelectron…

Materials with ring-shaped electronic bands are promising thermoelectric candidates, since their unusual dispersion shape is predicted to give large power factors. While previous calculations of these materials have relied on the assumption…

Mesoscale and Nanoscale Physics · Physics 2021-04-14 Cameron Rudderham , Jesse Maassen

The quasiparticle band structures of four polytypes 3C, 6H, 4H, and 2H of GaP, GaAs, GaSb, InP, InAs, and InSb are computed with high accuracy including spin-orbit interaction applying a recently developed approximate calculation scheme,…

Materials Science · Physics 2015-06-05 Abderrezak Belabbes , Christian Panse , Jürgen Furthmüller , Friedhelm Bechstedt

From the analysis of the cyclotron resonance, we experimentally obtain the band structure of the three-dimensional topological insulator based on a HgTe thin film. Top gating was used to shift the Fermi level in the film, allowing us to…

Mesoscale and Nanoscale Physics · Physics 2020-10-20 J. Gospodaric , V. Dziom , A. Shuvaev , A. A. Dobretsova , N. N. Mikhailov , Z. D. Kvon , E. G. Novik , A. Pimenov

We predict the existence of new two dimensional silicon carbide nanostructure employing ab initio density-functional theory calculations. These structures are composed of tetragonal and hexagonal rings with C-C and Si-C bonds arranged in a…

Materials Science · Physics 2020-12-16 Qun Wei , Ying Yang , Guang Yang , Xihong Peng

Density functional calculations have performed to study the band structures of $Bi_2Te_3$-related binary ($Bi_2Te_3$, $Sb_2Te_3$, $Bi_2Se_3$, and $Sb_2Se_3$) and $Sb$/$Se$ doped ternary compounds [$(Bi_{1-x}Sb_x)_2Te_3$ and…

Materials Science · Physics 2016-11-16 Byungki Ryu , Min-Wook Oh , Bong-Seo Kim , Ji Eun Lee , Sung-Jae Joo , Bok-Ki Min , HeeWoong Lee , Sudong Park