8 papers
Fluorine-substitution-dependent phase diagram and superconducting properties of Sm-based oxypnictides synthesized by a high-pressure growth technique
Mohammad Azam, Tatiana Zajarniuk, Ryszard Diduszko +5
A series of SmFeAsO1-xFx (Sm1111) bulk samples (x = 0.05 to 0.40) are synthesized by an in-situ cubic-anvil high-pressure technique at 4 GPa and systematically characterized throug…
Enhancement of the superconducting transition temperature in Mn-doped CaKFe4As4 processed by the high gas-pressure and high-temperature synthesis method
Manasa Manasa, Mohammad Azam, Tatiana Zajarniuk +4
A series of Mn-doped CaKFe4As4 samples, CaK(Fe1-xMnx)4As4 with x values of 0, 0.005, 0.01, 0.02, 0.03, 0.04, and 0.05, are synthesized using two distinct routes: conventional synth…
Optimization of superconducting properties of F-doped SmFeAsO by cubic anvil high-pressure technique
Mohammad Azam, Tatiana Zajarniuk, Hiraku Ogino +1
We optimize the synthesis conditions for SmFeAsO0.80F0.20 (Sm1111) bulks using a cubic-anvil high-pressure (CA-HP) apparatus through both ex-situ and in-situ processes, applying pr…
Effect of spark plasma sintering on the superconducting properties of Sm-based oxypnictide
Mohammad Azam, Tatiana Zajarniuk, Konrad Kwatek +2
We optimize the superconducting properties of Sm-based oxypnictide (Sm1111: SmFeAsO0.80F0.20) by using the Spark Plasma Sintering (SPS) technique under various synthesis conditions…
Praseodymium doping effect on the superconducting properties of FeSeTe bulks under ambient and high-pressure growth conditions
Priya Singh, Manasa Manasa, Mohammad Azam +9
A series of Pr-doped FeSeTe (FePrSeTe; to 0.3) bulks are prepared by conventional synthesis process at ambient pressure (CSP), a…
Synthesis and characterizations of arsenic doped FeSe bulks
Priya Singh, Manasa Manasa, Mohammad Azam +6
FeSe(11) family has a simple crystal structure belonging to iron-based superconductors (FBS) and has many stable phases including hexagonal and tetragonal structures, but only the…