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相关论文: Degenerate doping in \b{eta}-Ga2O3 Single Crystals…

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Magnetoresistivity and Hall effect measured in magnetic fields up to B=9T (B||c, J||ab) in electron-doped $Nd_{2-x}$Ce_{x}Cu$O_{4+{\delta}} single crystal films with x = 0.14; 0.15; 0.18 and different oxygen content ({\delta}) were studied…

We report the effect of co-doping of In and Ga at low concentrations on the structural, electronic, and thermoelectric properties of SnTe based compositions $Sn_{1.03-2x}In_{x}Ga_{x}Te$ (x = 0, 0.01, 0.02, 0.04) prepared by the solid-state…

Topological insulators possess a non-conductive bulk and present surface states, henceforth, they are electrically conductive along their boundaries. Bismuth selenide ($Bi_2Se_3$) is one of the most promising topological insulators.…

Among ultrawide bandgap semiconductors, beta-Ga2O3 is particularly promising for high power and frequency applications. For devices, n-type concentrations above 10^19 cm^-3 are required. Ge is a promising alternative n-type dopant with an…

The hot-wall metal-organic chemical vapor deposition (MOCVD), previously shown to enable superior III-nitride material quality and high performance devices, has been explored for Mg doping of GaN. We have investigated the Mg incorporation…

Samarium doped Na$_2$O-ZnO-TeO$_2$ (NZT) glasses were prepared by the melt quenching method. The glass-forming ability and glass stability of prepared glass was estimated by Hruby parameter using Differential Thermal Analysis (DTA) and…

Previous investigations of 4$H_b$-TaS$_{2-2x}$Se$_{2x}$ mainly focused on the direct competition between superconductivity and charge density wave (CDW). However, the superconductivity itself, although has been prominently enhanced by…

超导电性 · 物理学 2023-04-11 Zhenkai Xie , Meng Yang , Zhigang Cheng , Tianping Ying , Jian-Gang Guo , Xiaolong Chen

The dilute magnetic semiconductor (Ga,Mn)As is ferromagnetic in accordance with the p-d Zener model. Hole density function (HDF) localization has been previously studied by means of the density functional theory (DFT) and non-standard DFT…

强关联电子 · 物理学 2014-03-05 Karolina Z. Milowska , Malgorzata Wierzbowska

Superconductivity is achieved in Nd1-xCexOBiS2 via electron doping using mixed-valence Ce ions. Single crystals with x = 0.2, 0.3, 0.4, and 0.5 are generated using a CsCl flux method. Plate-like single crystals with dimensions of 0.8 0.8…

We have measured the electrical conductivity of Ge:Ga samples prepared by neutron-transmutation doping of isotopically enriched 70Ge single crystals in order to study the metal-insulator transition (MIT) ruling out an ambiguity due to…

无序系统与神经网络 · 物理学 2007-05-23 Michio Watanabe

We report suppression of superconductivity in Bi4O4S3 compound by Se doping at S site. Bulk polycrystalline samples are synthesized by solid state reaction route. The Rietveld refined of XRD data of all the studied samples show that the…

超导电性 · 物理学 2014-03-05 Rajveer Jha , V. P. S. Awana

We develop a simple chemical method to obtain bulk quantities of N-doped, reduced graphene oxide (GO) sheets through thermal annealing of GO in ammonia. X-ray photoelectron spectroscopy (XPS) study of GO sheets annealed at various reaction…

材料科学 · 物理学 2009-10-07 Xiaolin Li , Hailiang Wang , Joshua T. Robinson , Hernan Sanchez , Georgi Diankov , Hongjie Dai

We investigate the possibility of achieving high-temperature superconductivity in hydrides under pressure by inducing metallization of otherwise insulating phases through doping, a path previously used to render standard semiconductors…

The design of beta-Ga2O3-based modulation doped field effect transistors (MODFETs) is discussed with a focus on the role of self-heating and resultant modification of the electron mobility profile. Temperature- and doping-dependent model of…

应用物理 · 物理学 2021-05-11 Michael Mastro , Marko J. Tadjer , Jihyun Kim , Fan Ren , Stephen J. Pearton

We show that the HF acid etch commonly used to prepare SrTiO3(001) for heteroepitaxial growth of complex oxides results in a non-negligible level of F doping within the terminal surface layer of TiO2. Using a combination of x-ray…

材料科学 · 物理学 2015-05-30 Scott A. Chambers , Timothy C. Droubay , Cigdem Capan , Guangyuan Sun

Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6+\delta}$ (0$\leq x \leq$1.00) single crystals with high-quality have been grown successfully using the travelling-solvent floating-zone technique. The patterns of X-ray diffraction suggest high crystalline…

超导电性 · 物理学 2009-11-13 Huiqian Luo , Peng Cheng , Lei Fang , Hai-Hu Wen

Doped semiconductors are a central and crucial component of all integrated circuits. By using a combination of white light and a focused laser beam, and exploiting hBN defect states, heterostructures of hBN/Graphene/hBN are photodoped…

介观与纳米尺度物理 · 物理学 2025-02-12 Son T. Le , Thuc T. Mai , Maria F. Munoz , Angela R. Hight Walker , Curt A. Richter , Aubrey T. Hanbicki , Adam L. Friedman

Charge transport properties of thin films of sol--gel processed undoped and Al-doped zinc oxide nanoparticles with variable doping level between 0.8 at% and 10 at% were investigated. The X-ray diffraction studies revealed a decrease of the…

材料科学 · 物理学 2008-11-13 Maria S Hammer , Daniel Rauh , Carsten Deibel , Vladimir Dyakonov

The ferroelectric properties of nanoscale silicon doped HfO$_2$ promise a multitude of applications ranging from ferroelectric memory to energy-related applications. The reason for the unexpected behavior has not been clearly proven and…

材料科学 · 物理学 2018-01-03 Christopher Künneth , Robin Materlik , Max Falkowski , Alfred Kersch

Effect of L-threonine (LT) doping on crystalline perfection, second harmonic generation (SHG) efficiency, optical transparency and laser damage threshold (LDT) in potassium dihydrogen phosphate (KDP) crystals grown by slow evaporation…

材料科学 · 物理学 2014-03-20 S. K. Kushwaha , Mohd. Shakir , K. K. Maurya , A. L. Shah , M. A. Wahab , G. Bhagavannarayana