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相关论文: Electronic Structure and Mott Localization in Iron…

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The electronic structure and intrinsic magnetic properties of $\text{Fe}_2\text{AlB}_2$-related compounds and their alloys have been investigated using density functional theory. For $\text{Fe}_2\text{AlB}_2$, the crystallographic $a$ axis…

材料科学 · 物理学 2017-03-22 Liqin Ke , Bruce N. Harmon , Matthew J. Kramer

The influence of a partial substitution with sulphur into Te sites on the crystal, electronic and magnetic structures of FeTe is investigated by DFT calculations. The results reveal a phase transition from the antiferromagnetic…

超导电性 · 物理学 2015-01-26 A. Ciechan , M. J. Winiarski , M. Samsel-Czekała

In this paper, electrical and electronic properties of strained mono-layer InTe for two structures, $\alpha$, and $\beta$ phases, is investigated. The band structure is obtained using density functional theory (DFT). The minimum energy and…

介观与纳米尺度物理 · 物理学 2019-05-14 Shoeib Babaee Touski , Mohammad Ariapour , Manouchehr Hosseini

Density functional calculations are used to study magnetic and electronic properties of the spinel ferrites, ZnFe$_2$O$_4$ and MnFe$_2$O$_4$. Correct magnetic orderings are obtained. ZnFe$_2$O$_4$ is predicted to be a small gap insulator in…

凝聚态物理 · 物理学 2009-11-07 D. J. Singh , M. Gupta , R. Gupta

The topological Weyl semimetal MoTe2, in the orthorhombic phase, is an important system both from the point of view of fundamental physics and potential applications. In this study we have investigated the elastic, electronic, bonding and…

材料科学 · 物理学 2020-03-03 B. Rahman Rano , Ishtiaque M. Syed , S. H. Naqib

Td-WTe2 is a topological Weyl semimetal. WTe2 in the orthorhombic structure is stable at room temperature. Elastic, electronic, bonding, and optoelectronic properties of WTe2 have been investigated in detail in this work using the density…

材料科学 · 物理学 2020-12-01 B. Rahman Rano , Ishtiaque M. Syed , S. H. Naqib

Motivated by an experimental report of iridate superlattices, we performed first-principle electronic structure calculations for SrIrO$_3$/SrTiO$_3$. Heterostructuring causes SrIrO$_3$ to become Sr$_2$IrO$_4$-like, and the system has the…

强关联电子 · 物理学 2014-07-01 Kang-Hwan Kim , Heung-Sik Kim , Myung Joon Han

Electronic and magnetic structures of iron selenide compounds Ce2O2FeSe2 (2212\ast) and BaFe2Se3(123\ast) are studied by the first-principles calculations. We find that while all these compounds are composed of one-dimensional (1D) Fe chain…

强关联电子 · 物理学 2014-08-29 Wei Li , Chandan Setty , X. H. Chen , Jiangping Hu

We performed a combined angle-resolved photoemission spectroscopy and scanning tunneling microscopy study of the electronic structure of electron-doped Ca$_{0.83}$La$_{0.17}$Fe$_2$As$_2$. A surface reconstruction associated with the…

超导电性 · 物理学 2013-01-08 Y. -B. Huang , P. Richard , J. -H. Wang , X. -P. Wang , X. Shi , N. Xu , Z. Wu , A. Li , J. -X. Yin , T. Qian , B. Lv , C. W. Chu , S. H. Pan , M. Shi , H. Ding

Low dimensional magnetism has been powerfully boosted as a promising candidate for numerous applications. The stability of the long-range magnetic order is directly dependent on the electronic structure and the relative strength of the…

The Fe-based superconducting KxFe2-ySe2 (0.6 {\leg} x {\leg} 1, 0.2{\leg} y {\leg} 0.4) compounds, unlike the well-known RFe2As2 (R = Ba, Sr, Ca) superconductors, contain complex structural features and notable physical properties, such as…

超导电性 · 物理学 2011-04-29 J. Q. Li , Y. J. Song , H. X. Yang , Z. Wang , H. L. Shi , G. F. Chen , Z. W. Wang , Z. Chen , H. F. Tian

The magnetic properties in the parent compounds are often intimately related to the microscopic mechanism of superconductivity. Here we report the first direct measurements on the electronic structure of a parent compound of the newly…

The layered iron superconductors are discussed using electronic structure calculations. The four families of compounds discovered so far, including Fe(Se,Te) have closely related electronic structures. The Fermi surface consists of…

超导电性 · 物理学 2015-05-13 D. J. Singh , M. H. Du , L. Zhang , A. Subedi , J. An

We use angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic structure of CaFe$_2$As$_2$ in previously unexplored collapsed tetragonal (CT) phase. This unusual phase of…

We study the properties of ThCr$_2$Si$_2$ structure BaMn$_2$As$_2$ and BaMn$_2$Sb$_2$ using density functional calculations of the electronic and magnetic as well experimental measurements on single crystal samples of BaMn$_2$As$_2$. These…

材料科学 · 物理学 2009-02-25 J. an , A. S. Sefat , D. J. Singh , M. H. Du

The latest discovery of a new iron-chalcogenide superconductor A$_x$Fe$_{2-y}$Se$_2$(A=K, Cs, Rb, Tl and etc.) has attracted much attention due to a number of its unique characteristics, such as the possible insulating state of the parent…

超导电性 · 物理学 2012-01-04 Daixiang Mou , Lin Zhao , Xingjiang Zhou

FeSe has been extensively explored as a quantum material, primarily due to the observed highest superconducting transition temperature among Fe-based unconventional superconductors. Nonetheless, the electronic structure and the electron…

强关联电子 · 物理学 2023-10-31 Byungkyun Kang , Maengsuk Kim , Chul Hong Park , Anderson Janotti

We combined the bond order length strength and bond charge models and the topological concept to obtain the nonbonding, bonding, and antibonding states of the T type WTe$_2$/MoS$_2$ heterostructure.The energy band projection method and…

材料科学 · 物理学 2022-03-14 Hongrong Qiu , Hanze Li , Jiannan Wang , Yunhu Zhu , Maolin Bo

The electronic energy structures and magnetic properties of layered superconductors $R$Ni$_2$B$_2$C, $R$Fe$_4$Al$_8$ and FeSe are systematically studied, by using the density functional theory (DFT). The calculations allowed us to reveal a…

超导电性 · 物理学 2014-04-04 G. E. Grechnev , A. V. Logosha , A. A. Lyogenkaya , A. G. Grechnev , A. V. Fedorchenko

The structural and electronic properties of hypothetical Ru$_x$Fe$_{1-x}$Se and Ru$_x$Fe$_{1-x}$Te systems have been investigated from first principles within the density functional theory (DFT). Reasonable values of lattice parameters and…

超导电性 · 物理学 2014-12-15 M. J. Winiarski , M. Samsel-Czekała , A. Ciechan