Superconducting Transition Temperatures and Lattice Parameters of Simple-Cubic Metastable Te-Au Solutions Containing Fe and Mn

1971 ◽  
Vol 3 (3) ◽  
pp. 755-761 ◽  
Author(s):  
L. R. Newkirk ◽  
C. C. Tsuei
PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0255823
Author(s):  
Zhiyuan Hu

Searching for new high temperature superconductors has long been a key research issue. Fe-based superconductors attract researchers’ attention due to their high transition temperature, strong irreversibility field, and excellent crystallographic symmetry. By using doping methods and dopant levels, different types of new Fe-based superconductors are synthesized. The transition temperature is a key indicator to measure whether new superconductors are high temperature superconductors. However, the condition for measuring transition temperature are strict, and the measurement process is dangerous. There is a strong relationship between the lattice parameters and the transition temperature of Fe-based superconductors. To avoid the difficulties in measuring transition temperature, in this paper, we adopt a machine learning method to build a model based on the lattice parameters to predict the transition temperature of Fe-based superconductors. The model results are in accordance with available transition temperatures, showing 91.181% accuracy. Therefore, we can use the proposed model to predict unknown transition temperatures of Fe-based superconductors.


1989 ◽  
Vol 169 ◽  
Author(s):  
B. Morosin ◽  
D. S. Ginley ◽  
E. L. Venturini ◽  
R. J. Baughman ◽  
J. E. Schirber ◽  
...  

AbstractWe have examined several crystals belonging to the Tl‐2122 structure type (Tl2CaBa2Cu2O8 with c=29Å), and have shown that cation solid solution occurs. Such cation disorder appears to be responsible for the observed small differences in lattice parameters reported by various investigators and to contribute towards the substantial variation in the superconducting transition temperatures.


1989 ◽  
Vol 169 ◽  
Author(s):  
Youwen Xu ◽  
A. R. Moodenbaugh ◽  
Y. L. Wang ◽  
M. Suenaga ◽  
R. L. Sabatini

AbstractA series of polycrystalline YBa2(Cu1‐xMx)3O7‐δ (1:2:3) samples with a typical grain size > 10μm was prepared using well controlled and reproducible precedures. This relatively large grain size allowed microprobe studies of individual grains to determine M content of the 1:2:3 phase. Solubility limits of substitutions for Cu in these samples are estimated. Superconducting transition temperatures and lattice parameters are presented. In the case of Ga, microprobe studies show no evidence for Ga content of 1:2:3 above x=0.01. Preliminary studies show no evidence for solid solution above x=0.01 when substituting Mn, Cr, Zr, and Ti for Cu in 1:2:3.


2019 ◽  
Vol 7 (9) ◽  
pp. 2589-2595 ◽  
Author(s):  
Luo Yan ◽  
Tao Bo ◽  
Peng-Fei Liu ◽  
Bao-Tian Wang ◽  
Yong-Guang Xiao ◽  
...  

We predict two new molybdenum boride monolayers as phonon-mediated superconductors with superconducting transition temperatures of 3.9 and 0.2 K.


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