中文
相关论文

相关论文: Structural, electronic, and magnetic properties of…

200 篇论文

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

Manganese telluride (MnTe) has garnered strong interest recently for its antiferromagnetic semiconductor properties, which are promising for applications in spintronics, data storage, and quantum computing. In this study, we discovered that…

超导电性 · 物理学 2024-06-18 Zhihao He , Chen Ma , Jiannong Wang , Iam Keong Sou

The effect of additional doping of charge impurities was investigated in a ferromagnetic semiconductor Zn$_{1-x}$Cr$_{x}$Te. It was found that the doping of iodine, which is expected to act as an n-type dopant in ZnTe, brought about a…

材料科学 · 物理学 2009-11-11 Nobuhiko Ozaki , Nozomi Nishizawa , Stephane Marcet , Shinji Kuroda , Osamu Eryu , Koki Takita

We report a first principles systematic study of atomic, electronic, and magnetic properties of hydrogen saturated silicon nanowires (H-SiNW) which are doped by transition metal (TM) atoms placed at various interstitial sites. Our results…

材料科学 · 物理学 2012-04-25 E. Durgun , D. I. Bilc , S. Ciraci , Ph. Ghosez

In Fe-based superconductors, electron doping is often realized by the substitution of transition-metal atoms for Fe. In order to investigate how the electronic structure of the parent compound is influenced by Zn substitution, which…

Using the first-principles density-functional theory plan-wave pseudopotential method, we investigate the structure and magnetism in 25% Mn substitutive and interstitial doped monoclinic, tetragonal and cubic ZrO2 systematically. Our…

材料科学 · 物理学 2015-05-13 Xingtao Jia , Wei Yang , Minghui Qin , Jianping Li

We present a theoretical study of (Ga,Mn)(As,C) diluted magnetic semiconductors with high C acceptor density that combines insights from phenomenological model and microscopic approaches. A tight-binding coherent potential approximation is…

材料科学 · 物理学 2007-05-23 T. Jungwirth , J. Masek , Jairo Sinova , A. H. MacDonald

Properties of transition metal (TM) doped single wall (8,0) SiC nanotube is investigated using first principles density functional theory as implemented within quantum espresso code. The properties studied are electronic, optical, and…

材料科学 · 物理学 2022-05-20 A. T. Mulatu , K. N. Nigussa , L. D. Deja

We study the electronic structure and magnetism of 25% Mn substituted cubic Zirconia (ZrO2) with several homogeneous and heterogeneous doping profiles using density-functional theory calculations. We find that all doping profiles show…

材料科学 · 物理学 2008-09-08 Xingtao Jia , Wei Yang , Minghui Qin , Xinglai Zhang , Mingai Sun , Jianping Li

The chemical states of the ZnGeP$_{2}$:Mn interface, which shows ferromagnetism above room-temperature, has been studied by photoemission spectroscopy. Mn deposition on the ZnGeP$_2$ substrate heated to 400$^{\circ}$C induced Mn…

The realization of multiferroicity in 2D nanomaterials is crucially important for designing advanced nanoelectronic devices such as non-volatile multistate data storage. In this work, the coexistence of ferromagnetism and ferroelectricity…

材料科学 · 物理学 2019-11-12 Yanyu Liu , Wei Zhou , Gang Tang , Chao Yang , Xueyun Wang , Jiawang Hong

The complex lanthanide doping of electron manganites results in enhancement of various phase separation effects in physical properties of these compounds. Selecting Ca0.8Sm0.16Nd0.04MnO3 as a model case we show that the first order…

强关联电子 · 物理学 2009-11-10 D. A. Filippov , K. V. Klimov , R. Z. Levitin , A. N. Vasil'Ev , T. N. Voloshok , R Suryanarayanan

Study and comparison of over 30 examples of electron doped BaFe2As2 for transition metal (TM) = Co, Ni, Cu, and (Co/Cu mixtures) have lead to an understanding that the suppression of the structural/antiferromagnetic phase transition to low…

超导电性 · 物理学 2009-08-04 P. C. Canfield , S. L. Bud'ko , N. Ni , J. Q. Yan , A. Kracher

Resistivity, Hall effect, magnetoresistance and DC magnetization were measured in Mn and Zn doped Ba$_{0.5}$K$_{0.5}$Fe$_{2}$As$_{2}$ samples. It is found that the Mn-doping can depress the superconducting transition temperature drastically…

超导电性 · 物理学 2015-05-14 Peng Cheng , Bing Shen , Jiangping Hu , Hai-Hu Wen

Mn doped semiconductors are extremely interesting systems due to their novel magnetic properties suitable for the spintronics applications. It has been shown recently by both theory and experiment that Mn doped GaN systems have a very high…

材料科学 · 物理学 2016-08-31 B. Sanyal , O. Bengone , S. Mirbt

Finding tunable van der Waals (vdW) ferromagnets that operate at above room temperature is an important research focus in physics and materials science. Most vdW magnets are only intrinsically magnetic far below room temperature and…

Using first principles calculations as based on density functional theory, we propose a class of so far unexplored diluted ferromagnetic semiconductors and half-metals. Here, we study the electronic properties of recently synthesized $ 4d $…

材料科学 · 物理学 2015-05-27 Abdesalem Houari , Samir F. Matar , Volker Eyert

The structure, magnetic and martensitic properties of Fe doped Ni-Mn-In magnetic shape memory alloys have been studied by differential scanning calorimetry, magnetization, resistivity, X-ray diffraction (XRD) and EXAFS. While…

材料科学 · 物理学 2015-06-23 D. N. Lobo , K. R. Priolkar , S. Emura , A. K. Nigam

TM-doped IrTe2(TM=Mn, Fe, Co, Ni) compounds were synthesized by solid state reaction. Single crystal x-ray diffraction experiments indicate that part of the doped TM ions (TM=Fe, Co, and Ni) substitute for Ir, and the rest intercalate into…

超导电性 · 物理学 2013-10-18 J. -Q. Yan , B. Saparov , A. S. Sefat , H. Yang , H. B. Cao , H. D. Zhou , B. C. Sales , D. G. Mandrus

Using the density functional theory (DFT) in combination with Boltzmann transport theory, the influence of Mg concentrations (x) doping on the thermoelectric properties of Hg1-xMgxSe ternary alloys was systematically investigated. The…

材料科学 · 物理学 2023-03-28 Y. Selmani , H. Labrim , A. Jabar , L. Bahmad