scholarly journals Upper critical and irreversibility fields in Ni- and Co- doped pnictide bulk superconductors

2017 ◽  
Author(s):  
Martin Nikolo ◽  
John Singleton ◽  
Dmitry Solenov ◽  
Jianyi Jiang ◽  
Jeremy Weiss ◽  
...  
Keyword(s):  
Bulk Superconductors ◽  
Irreversibility Fields ◽  
Co Doped

scholarly journals Upper critical and irreversibility fields in Ni- and Co-doped pnictide bulk superconductors

2018 ◽  
Vol 536 ◽  
pp. 833-838 ◽  
Author(s):  
Martin Nikolo ◽  
John Singleton ◽  
Dmitry Solenov ◽  
Jianyi Jiang ◽  
Jeremy Weiss ◽  
...  
Keyword(s):  
Bulk Superconductors ◽  
Irreversibility Fields ◽  
Co Doped

Upper Critical and Irreversibility Fields in Ba(Fe0.92Co0.08)2As2 and Ba(Fe0.91Co0.09)2As2 Pnictide Bulk Superconductors

2016 ◽  
Vol 30 (3) ◽  
pp. 561-568 ◽  
Author(s):  
Martin Nikolo ◽  
John Singleton ◽  
Dmitry Solenov ◽  
Jianyi Jiang ◽  
Jeremy D. Weiss ◽  
...  
Keyword(s):  
Bulk Superconductors ◽  
Irreversibility Fields

Upper Critical and Irreversibility Fields in Ba(Fe0.95Ni0.05)2As2 and Ba(Fe0.94Ni0.06)2As2 Pnictide Bulk Superconductors

2016 ◽  
Vol 30 (2) ◽  
pp. 331-341 ◽  
Author(s):  
Martin Nikolo ◽  
John Singleton ◽  
Dmitry Solenov ◽  
Jianyi Jiang ◽  
Jeremy D. Weiss ◽  
...  
Keyword(s):  
Bulk Superconductors ◽  
Irreversibility Fields

970 nm Infrared to Visible Upconversion in Er3+ and Yb3+ Co-Doped PLZT Glass Ceramic Thin Films

2008 ◽  
Author(s):  
Xiaomei Guo ◽  
Kewen Kevin. Li ◽  
Xuesheng Chen ◽  
Yingyin Kevin. Zou ◽  
Hua Jiang
Keyword(s):  
Thin Films ◽  
Glass Ceramic ◽  
Ceramic Thin Films ◽  
Co Doped

Tunable Carbon Surface from Mono- to Multi-Metallic Single Atoms

2020 ◽  
Author(s):  
Weihong Lai ◽  
Heng Wang ◽  
Quan jiang ◽  
Zichao Yan ◽  
Hanwen Liu ◽  
...  
Keyword(s):  
Synergistic Effects ◽  
Structural Evolution ◽  
Charge Compensation ◽  
Catalytic Reactions ◽  
Single Atom ◽  
Carbon Surface ◽  
Hydrogen Electrode ◽  
Single Atoms ◽  
Mass Activity ◽  
Co Doped

<p>Herein, we develop a non-selective charge compensation strategy to prepare multi-single-atom doped carbon (MSAC) in which a sodium p-toluenesulfonate (PTS-Na) doped polypyrrole (S-PPy) polymer is designed to anchor discretionary mixtures of multiple metal cations, including iron (Fe<sup>3+</sup>), cobalt (Co<sup>3+</sup>), ruthenium (Ru<sup>3+</sup>), palladium (Pd<sup>2+</sup>), indium (In<sup>3+</sup>), iridium (Ir<sup>2+</sup>), and platinum (Pt<sup>2+</sup>) . As illustrated in Figure 1, the carbon surface can be tuned with different level of compositional complexities, including unary Pt<sub>1</sub>@NC, binary (MSAC-2, (PtFe)<sub>1</sub>@NC), ternary (MSAC-3, (PtFeIr)<sub>1</sub>@NC), quaternary (MSAC-4, (PtFeIrRu)<sub>1</sub>@NC), quinary (MSAC-5, (PtFeIrRuCo)<sub>1</sub>@NC), senary (MSAC-6, (PtFeIrRuCoPd)<sub>1</sub>@NC), and septenary (MSAC-7, (PtFeIrRuCoPdIn)<sub>1</sub>@NC) samples. The structural evolution of carbon surface dictates the activities of both ORR and HER. The senary MSAC-6 achieves the ORR mass activity of 18.1 A·mg<sub>metal</sub><sup>-1</sup> at 0.9 V (Vs reversible hydrogen electrode (RHE)) over 30K cycles, which is 164 times higher than that of commercial Pt/C. The quaternary MSAC-4 presented a comparable HER catalytic capability with that of Pt/C. These results indicate that the highly complexed carbon surface can enhance its ability over general electrochemical catalytic reactions. The mechanisms regarding of the ORR and HER activities of the alternated carbon surface are also theoretically and experimentally investigated in this work, showing that the synergistic effects amongst the co-doped atoms can activate or inactivate certain single-atom sites.</p>

Transport and magnetic properties of co-doped ferromagnetic semiconductor (In,Fe,Mn)As

2020 ◽  
Vol 13 (8) ◽  
pp. 083005
Author(s):  
Le Duc Anh ◽  
Taiki Hayakawa ◽  
Kohei Okamoto ◽  
Nguyen Thanh Tu ◽  
Masaaki Tanaka
Keyword(s):  
Magnetic Properties ◽  
Ferromagnetic Semiconductor ◽  
Co Doped
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