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相关论文: Functionalized Cr$_2$C MXenes: Novel Magnetic Semi…

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Two-dimensional (2D) half-metallic materials that have sparked intense interest in advanced spintronic applications are essential to the developing next-generation nanospintronic devices. Here we have adopted a first-principles calculation…

材料科学 · 物理学 2023-04-12 Qiuyue Ma , Yingmei Li , Guochun Yang , Yong Liu

Recently, two-dimensional (2D) transition metal carbides and nitrides, namely, MXenes have attracted lots of attention for electronic and energy storage applications. Due to a large spin-orbit coupling (SOC) and the existence of a…

介观与纳米尺度物理 · 物理学 2017-11-15 Yunye Liang , Mohammad Khazaei , Ahmad Ranjbar , Masao Arai , Seiji Yunoki , Yoshiyuki Kawazoe , Hongming Weng , Zhong Fang

Electronic band structure calculations using the augmented spherical wave method have been performed for CuCrO2. For this antiferromagnetic (T_N = 24 K) semiconductor crystallizing in the delafossite structure, it is found that the valence…

The family of two-dimensional transition metal carbides, so called MXenes, has recently found new members with ordered double transition metals M$'_2$M$"$C$_2$, where M$'$ and M$"$ stand for transition metals. Here, using a set of…

材料科学 · 物理学 2016-10-04 Mohammad Khazaei , Ahmad Ranjbar , Masao Arai , Seiji Yunoki

In order to investigate the electronic properties of the semiconducting van der Waals ferromagnet Cr$_2$Ge$_2$Te$_6$ (CGT), where ferromagnetic layers are bonded through van der Waals forces, we have performed angle-resolved photoemission…

The electronic structure of the Cr ions in the diluted ferromagnetic semiconductor Zn$_{1-x}$Cr$_x$Te ($x=0.03$ and 0.15) thin films has been investigated using x-ray magnetic circular dichroism (XMCD) and photoemission spectroscopy (PES).…

Diluted magnetic semiconductors (DMS) have received much attention due to its potential applications to spintronics devices. A prototypical system (Ga,Mn)As has been widely studied since 1990s. The simultaneous spin and charge doping via…

Electronic structures of very dilute Cr- or Ru-doped Nd_{1/2}A_{1/2}MnO_{3} (NAMO; A=Ca, Sr) manganites have been investigated using the Mn and Cr 2p -> 3d resonant photoemission spectroscopy (PES). All the Cr- and Ru-doped NAMO systems…

Two-dimensional semiconducting transition metal dichalcogenides (TMDCs) like molybdenum disulfide (MoS2) are generating significant excitement due to their unique electronic, chemical, and optical properties. Covalent chemical…

介观与纳米尺度物理 · 物理学 2018-02-28 Ximo S. Chu , Ahmed Yousaf , Duo O. Li , Anli A. Tang , Abhishek Debnath , Duo Ma , Alexander A. Green , Elton J. G. Santos , Qing Hua Wang

We show the effect of Cl and S functionalization on the superconducting properties of layered (bulk) and monolayer niobium carbide (Nb$_2$C) MXene crystals, based on first-principles calculations combined with Eliashberg theory. For the…

超导电性 · 物理学 2023-06-21 Cem Sevik , Jonas Bekaert , Milorad V. Milosevic

Rutile CrO2 is the most important half-metallic material with nearly 100% spin polarization at the Fermi level, and rutile TiO2 is a wide-gap semiconductor with many applications. Here we show through first-principles investigation that a…

介观与纳米尺度物理 · 物理学 2014-04-16 Si-Da Li , Bang-Gui Liu

Two-dimensional (2D) atomic crystals, such as graphene and transition-metal dichalcogenides, have emerged as a new class of materials with remarkable physical properties. In contrast to graphene, monolayer MoS2 is a non-centrosymmetric…

材料科学 · 物理学 2015-06-11 Kin Fai Mak , Keliang He , Changgu Lee , Gwan Hyoung Lee , James Hone , Tony F. Heinz , Jie Shan

The results of investigations of intercalated compounds Cr_xTiSe_2 and Co_xTiSe_2 by X-ray photoelectron spectroscopy (XPS) and X-ray emission spectroscopy (XES) are presented. The data obtained are compared with theoretical results of…

We have studied in details the electronic structure and magnetism in M (Mn and Cr) doped semiconducting half-Heusler compounds FeVSb, CoTiSb and NiTiSn (XM$_{x}$Y$_{1-x}$Z) in a wide concentration range using local-spin density functional…

材料科学 · 物理学 2007-05-23 B. R. K. Nanda , I. Dasgupta

Recently, two-dimensional ferromagnetic semiconductors have been an important class of materials for many potential applications in spintronic devices. Based on density functional theory, we systematically explore the magnetic and…

材料科学 · 物理学 2020-01-14 Yulu Ren , Yanfeng Ge , Wenhui Wan , Qiaoqiao Li , Yong Liu

Strong coupling between optical and magnetic excitations could enable contactless, spatially resolved, or ultrafast interrogation and control of magnetism in two-dimensional (2D) materials and devices. The layered 2D A-type antiferromagnet…

This study reports first synthesis of MXene-derived co-existing phases. New family of two-dimensional materials such as Ti3C2 namely MXene, having transition metal forming hexagonal structure with carbon atoms have attracted tremendous…

介观与纳米尺度物理 · 物理学 2019-07-31 Mehroz Iqbal , Jameela Fatheema , Malika Rani , Ren-Kui Zheng , Saleem Ayaz Khan , Syed Rizwan

The work reports nonmagnetic behavior (0.04 $\mu$B) in two-dimensional (2D) V2C-OF MXene and ferromagnetism in MnO$_2$ adsorbed V2C-OF MXene. The density functional theory (DFT) calculations were carried out to study the magnetic moments of…

介观与纳米尺度物理 · 物理学 2025-05-06 Mahjabeen Fatima , Saleem Ayaz Khan , Syed Rizwan

Two-dimensional conjugated metal-organic frameworks (2D c-MOFs) are emerging as a unique class of 2D electronic materials. However, intrinsically semiconducting 2D c-MOFs with gaps in the Vis-NIR and high charge carrier mobility have been…

Exploiting 2D materials for spintronic applications can potentially realize next-generation devices featuring low-power consumption and quantum operation capability. The magnetic exchange field (MEF) induced by an adjacent magnetic…