High-Tc superconducting phases in organic molecular intercalated iron selenides: synthesis and crystal structures

2017 ◽  
Vol 53 (70) ◽  
pp. 9729-9732 ◽  
Author(s):  
Shifeng Jin ◽  
Xiao Fan ◽  
Xiaozhi Wu ◽  
Ruijin Sun ◽  
Hui Wu ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Organic Molecules ◽  
Iron Based Superconductors ◽  
High Tc ◽  
Superconducting Phases ◽  
Structural Types ◽  
Phase Pure ◽  
Iron Based

Phase pure hybrid iron-based superconductors with various structural types can be obtained by sonochemical insertion of organic molecules into FeSe-layers.

scholarly journals Review on origin of the unusual high-Tc superconductivity in Ca1−xRExFe2As2 (RE = La, Ce, Pr, Nd)

2015 ◽  
Vol 1 (1) ◽  
Author(s):  
W. Zhou ◽  
Z. X. Shi
Keyword(s):  
High Temperature ◽  
Transition Temperature ◽  
Crystal Structures ◽  
High Temperature Superconductivity ◽  
Iron Pnictides ◽  
Iron Based Superconductors ◽  
High Tc ◽  
High Tc Superconductivity ◽  
Iron Based

AbstractSince the discovery of high temperature superconductivity in iron pnictides in 2008, many iron-based superconductors (IBSs) with various crystal structures have been exploited.Among them, superconductivity with the onset transition temperature T

scholarly journals Bulk and Single Crystal Growth Progress of Iron-Based Superconductors (FBS): 1111 and 1144

Crystals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 20
Author(s):  
Shiv J. Singh ◽  
Mihai I. Sturza
Keyword(s):  
Crystal Growth ◽  
Experimental Studies ◽  
Short Review ◽  
Single Crystal Growth ◽  
Superconducting Properties ◽  
High Quality ◽  
Iron Based Superconductors ◽  
High Tc ◽  
Developmental Issues ◽  
Iron Based

The discovery of iron-based superconductors (FBS) and their superconducting properties has generated huge research interest and provided a very rich physics high Tc family for fundamental and experimental studies. The 1111 (REFeAsO, RE = Rare earth) and 1144 (AEAFe4As4, AE = Ca, Eu; A = K, Rb) families are the two most important families of FBS, which offer the high Tc of 58 K and 36 K with doping and without doping, respectively. Furthermore, the crystal growth of these families is not an easy process, and a lot of efforts have been reported in this direction. However, the preparation of high-quality and suitable-sized samples is still challenging. In this short review, we will summarize the growth of materials with their superconducting properties, especially polycrystals and single crystals, for the 1111 and 1144 families, and make a short comparison between them to understand the developmental issues.

scholarly journals Crystal structures and sign reversal Hall resistivities in iron-based superconductors Li x (C3H10N2)0.32FeSe $(0.15\lt x\lt 0.4$)

2019 ◽  
Vol 28 (6) ◽  
pp. 067401
Author(s):  
Rui-Jin Sun ◽  
Shi-Feng Jin ◽  
Jun Deng ◽  
Mu-Nan Hao ◽  
Lin-Lin Zhao ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Sign Reversal ◽  
Iron Based Superconductors ◽  
Iron Based

scholarly journals Characteristic two-dimensional Fermi surface topology of high-Tc iron-based superconductors

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Masanori Sunagawa ◽  
Toshihiko Ishiga ◽  
Koji Tsubota ◽  
Taihei Jabuchi ◽  
Junki Sonoyama ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Surface Topology ◽  
Two Dimensional ◽  
Iron Based Superconductors ◽  
High Tc ◽  
Fermi Surface Topology ◽  
Characteristic Two ◽  
Iron Based

Pnictogen height as a switch between high-Tc nodeless and low-Tc nodal pairings in the iron-based superconductors

2010 ◽  
Vol 470 ◽  
pp. S416-S417
Author(s):  
Kazuhiko Kuroki ◽  
Hidetomo Usui ◽  
Seiichiro Onari ◽  
Ryotaro Arita ◽  
Hideo Aoki
Keyword(s):  
Iron Based Superconductors ◽  
High Tc ◽  
Iron Based

Intergrowth of modulated structures in high Tc Bi-Sr-Ca-Cu-O superconductors

1990 ◽  
Vol 48 (4) ◽  
pp. 76-77
Author(s):  
A.Q. He ◽  
G.W. Qiao ◽  
J. Zhu ◽  
H.Q. Ye
Keyword(s):  
Twin Structure ◽  
Modulated Structure ◽  
High Tc ◽  
One Dimensional ◽  
Lattice Constants ◽  
Superconducting Phases ◽  
Modulated Structures ◽  
Layer Structures

Since the first discovery of high Tc Bi-Sr-Ca-Cu-O superconductor by Maeda et al, many EM works have been done on it. The results show that the superconducting phases have a type of ordered layer structures similar to that in Y-Ba-Cu-O system formulated in Bi2Sr2Can−1CunO2n+4 (n=1,2,3) (simply called 22(n-1) phase) with lattice constants of a=0.358, b=0.382nm but the length of c being different according to the different value of n in the formulate. Unlike the twin structure observed in the Y-Ba-Cu-O system, there is an incommensurate modulated structure in the superconducting phases of Bi system superconductors. Modulated wavelengths of both 1.3 and 2.7 nm have been observed in the 2212 phase. This communication mainly presents the intergrowth of these two kinds of one-dimensional modulated structures in 2212 phase.

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