Review of annealing effects and superconductivity in Fe1+ yTe1− xSex superconductors

Y Sun, Z Shi, T Tamegai - Superconductor Science and …, 2019 - iopscience.iop.org
Among iron-based superconductors, Fe 1+ y Te 1− x Se x is unique in its structural
simplicity, consisting of only FeTe/Se layers, which is favorable for probing the mechanism of …

Dynamics and mechanism of oxygen annealing in Fe1+yTe0.6Se0.4 single crystal

Y Sun, Y Tsuchiya, T Taen, T Yamada, S Pyon… - Scientific Reports, 2014 - nature.com
Abstract Iron chalcogenide Fe (Te, Se) attracted much attention due to its simple structure,
which is favorable for probing the superconducting mechanism. Its less toxic nature …

Effects of annealing, acid and alcoholic beverages on Fe1+ yTe0. 6Se0. 4

Y Sun, T Taen, Y Tsuchiya, ZX Shi… - Superconductor …, 2012 - iopscience.iop.org
We have systematically investigated and compared different methods to induce
superconductivity in the iron chalcogenide Fe 1+ y Te 0.6 Se 0.4, including annealing in a …

Large, homogeneous, and isotropic critical current density in oxygen-annealed Fe1+ yTe0. 6Se0. 4 single crystal

Y Sun, T Taen, Y Tsuchiya, Q Ding, S Pyon… - Applied Physics …, 2013 - iopscience.iop.org
We reported a controllable way of removing excess Fe in Fe 1+ y Te 0.6 Se 0.4 by annealing
in a fixed amount of O 2. Compared with the weak superconductivity induced by dilute acids …

Oxygen Adsorption Induced Superconductivity in Ultrathin FeTe Film on SrTiO3(001)

W Ren, H Ru, K Peng, H Li, S Lu, A Chen, P Wang… - Materials, 2021 - mdpi.com
The phenomenon of oxygen incorporation-induced superconductivity in iron telluride (Fe1+
yTe, with antiferromagnetic (AFM) orders) is intriguing and quite different from the case of …

Doubling the critical current density in superconducting FeSe0. 5Te0. 5 thin films by low temperature oxygen annealing

C Zhang, W Si, Q Li - Applied Physics Letters, 2016 - pubs.aip.org
Iron chalcogenide superconducting thin films and coated conductors are attractive for
potential high field applications at liquid helium temperature for their high critical current …

Impact of interstitial oxygen on the electronic and magnetic structure in superconducting thin films

H Hu, JH Kwon, M Zheng, C Zhang, LH Greene… - Physical Review B, 2014 - APS
Interstitial oxygen critical to the emergence of superconductivity in Fe 1+ y Te O x thin films
has been detected. Its location and concentration are measured by atomic-resolution …

Low temperature crystal structure and large lattice discontinuity at Tc in superconducting FeTeOx films

LK Narangammana, X Liu, YF Nie, FJ Rueckert… - Applied Physics …, 2013 - pubs.aip.org
We report a high resolution x-ray diffraction study of the crystal structure of superconducting
FeTeO x films. The crystal symmetry of FeTeO x matches the parent FeTe, unlike most iron …

[HTML][HTML] Impact of thickness on microscopic and macroscopic properties of Fe-Te-Se superconductor thin films

N Zhang, JO Wang, T Lei, C Liu, SH Zhang, HJ Qian… - AIP Advances, 2015 - pubs.aip.org
A series of iron based Fe-Te-Se superconductor thin films depositing on 0.7 wt% Nb-doped
SrTiO 3 at substrate temperatures in the 250 C-450 C range by pulsed laser ablation of a …

Effect of carrier density and valence states on superconductivity of oxygen annealed Fe1. 06Te0. 6Se0. 4 single crystals

TS Su, YW Yin, ML Teng, ZZ Gong, MJ Zhang… - Journal of Applied …, 2013 - pubs.aip.org
The variations of carrier density and valence states in oxygen annealed Fe 1.06 Te 0.6 Se
0.4 single crystals were studied systematically. It was found that the carrier density n H …