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相关论文: Extending the Growth Temperature-N Concentration R…

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The percentage of substitutional doping of magnetic atoms (Mn) in group-IV-based dilute magnetic semiconductors (DMS) can be increased by co-doping with another conventional electronic dopant (e-dopant) [Zhu et al., Phys. Rev. Lett. 100,…

材料科学 · 物理学 2009-06-04 Hua Chen , Wenguang Zhu , Efthimios Kaxiras , Zhenyu Zhang

Neutron powder diffraction has been used to investigate the structural and magnetic behavior of the isoelectronically doped Fe pnictide material PrFe1-xRuxAsO. Substitution of Ru for Fe suppresses the structural and magnetic phase…

The ferrimagnetic spinel oxide Zn(x)Fe(3-x)O(4) combines high Curie temperature and spin polarization with tunable electrical and magnetic properties, making it a promising functional material for spintronic devices. We have grown epitaxial…

Neutron powder diffraction measurements, combined with magnetization and resistivity data, have been carried out in the doped perovskite La$_{1-x}$Ca$_x$MnO$_3$ ($x=0.47$, 0.50, and 0.53) to elucidate the structural, magnetic, and…

强关联电子 · 物理学 2009-10-31 Q. Huang , J. W. Lynn , R. W. Erwin , A. Santoro , D. C. Dender , V. N. Smolyaninova , K. Ghosh , R. L. Greene

Diluted magnetic semiconductors (DMSs) based on group-IV materials are desirable for spintronic devices compatible with current silicon technology. In this work, amorphous Mn-doped SiGe thin films were first fabricated on Ge substrates by…

材料科学 · 物理学 2020-11-10 Huanming Wang , Sen Sun , Jiating Lu , Jiayin Xu , Xiaowei Lv , Yong Peng , Xi Zhang , Yuan Wang , Gang Xiang

N-type doping of high-resistance wide bandgap semiconductors, wurtzite high-Mg-content MgxZn1-xO for instance, has always been a fundamental application-motivated research issue. Herein, we report a solution to enhancing the conductivity of…

Epitaxial La2NiMnO6 thin films have been grown on (001)-oriented SrTiO3 using the PLD technique. The thin films are semiconducting and FM with a TC close to 270K, a coercive field of 920Oe, and a saturation magnetization of 5muB per f.u.…

材料科学 · 物理学 2009-11-13 M. P. Singh , C. Grygiel , W. C. Sheets , P. Boullay , M. Hervieu , W. Prellier , B. Mercey , Ch. Simon , B. Raeau

Chemical substitution during growth is a well-established method to manipulate electronic states of quantum materials, and leads to rich spectra of phase diagrams in cuprate and iron-based superconductors. Here we report a novel and generic…

Phase change materials (PCMs) that exhibit volatile resistive switching are promising for emulating neuronal oscillators. Charge transfer insulators, such as ReNiO3 (where Re represents rare earth metals like Pr, Nd, Sm, Eu...), form a…

材料科学 · 物理学 2024-10-31 Prashanth S , Binoy Krishna De , Shubham Kumar Parate , Kartick Biswas , Pavan Nukala

Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronics devices. However, the synthesis of 2D magnetic crystals, especially the direct growth on SiO2/Si…

Antiperovskite nitrides with the general formula M$_3$N have attracted significant attention due to their tunable electronic and magnetic properties. Among them are many cobalt-based compounds predicted to exhibit high thermodynamic…

In this work, we studied cobalt nitride (Co-N) thin films deposited using a dc magnetron sputtering method at a substrate temperature (\Ts) of 523\,K. We find that independent of the reactive gas flow (\pn) used during sputtering, the…

In this work, we report on the growth of high-mobility $\beta$-Ga$_2$O$_3$ homoepitaxial thin films grown at a temperature much lower than the conventional growth temperature window for metalorganic vapor phase epitaxy. Low-temperature…

We find that thin peptide films and coatings doped with metallic nanoparticles are more stable due to the role of electromagnetic fluctuations. It is shown that for the doped freestanding in vacuum peptide film the Casimir attraction…

介观与纳米尺度物理 · 物理学 2020-10-28 G. L. Klimchitskaya , V. M. Mostepanenko , E. N. Velichko

FePt/Fe3O4 nanoparticles can be used as building blocks to obtain, upon thermal annealing, magnetic nanocomposites with combined magnetic properties. Although the pre- and post-annealed samples are usually well characterized, a detailed…

材料科学 · 物理学 2011-02-28 S. J. A. Figueroa , S. J. Stewart , T. Rueda , A. Hernando , P. de la Presa

High quality single crystal Fe3O4 thin films with (111) orientation had been prepared on amorphous SiO2 substrate by pulsed laser deposition. The magnetization properties of the films are found to be highly unconventional. The Verwey…

Ion implantation of Fe and Mn into Al thin films was used for effective modification of Al superconductive properties. Critical temperature of the transition to superconducting state was found to decrease gradually with implanted Fe…

Multiferroic compounds have gained research attention in the field of ferroelectric photovoltaics due to the presence of transition-metal d states from magnetic ions, which tend to reduce the bandgap value. In this work,…

材料科学 · 物理学 2023-11-13 L. Imhoff , M. B. Di Marco , C. Lavado , S. Barolin , M. G. Stachiotti

We report the effect of 4f electron doping on structural, electrical and magneto-transport properties of Dy doped half Heusler Y1-x(Dy)xPdBi (x =0, 0.2, 0.5, 1) thin films grown by pulsed laser deposition. The Dy doping leads to lattice…

材料科学 · 物理学 2021-10-04 Vishal Bhardwaj , Niladri Banerjee , Ashok K. Ganguli , Ratnamala Chatterjee

This work demonstrates synthesis and study of fcc-Co derived from an isostructural Co4N. Diffusion measurements carried out in this work, reveal that N self-diffusion is the swiftest in Co4N compared to other transition metal nitrides or…

材料科学 · 物理学 2024-06-19 Seema , Dileep Kumar , U. P. Deshpande , Mukul Gupta