10 citations · 62 across the 19 of their papers we have counts for
19 papers
Effects of high-pressure synthesis on phase formation and superconducting properties of PrFeAsO1-xFx
Priya Singh, Konrad Kwatek, Tatiana Zajarniuk +3
Motivated by recent reports of enhanced superconducting performance in several families of iron-based superconductors (IBS) processed by high-pressure (HP) synthesis, we investigat…
Tuning Superconductivity by Isovalent Antimony Substitution in PrFeAs(O,F)
Priya Singh, Konrad Kwatek, Tatiana Zajarniuk +6
We investigate the effects of isovalent Sb substitution at the As site in fluorine-doped PrFeAs1-xSbxO0.7F0.3 (x = 0 to 1.0) through structural, Raman spectroscopy, density functio…
Effect of Mn Substitution on Superconductivity in PrFeAs(O,F): Role of Magnetic Impurities
Priya Singh, Konrad Kwatek, Tatiana Zajarniuk +5
We investigate Mn substitution at the Fe site in PrFe1-xMnxAsO0.7F0.3 (0 to 0.1) using structural, Raman, density functional theory (DFT), transport, and magnetic measurements. X-r…
Complete electronic phase diagram and enhanced superconductivity in fluorine-doped PrFeAsO1-xFx
Priya Singh, Konrad Kwatek, Tatiana Zajarniuk +4
Establishing a complete electronic phase diagram for REFeAsO (RE = rare earth, RE1111) ironbased superconductors has remained experimentally challenging. Here, we report a systemat…
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…
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…
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…
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…
High-pressure growth effect on the properties of high-Tc iron-based superconductors: A short review
Priya Singh, Manasa Manasa, Mohammad Azam +1
The high-pressure growth technique is a vital approach that facilitates the stabilization of new phases and allows for meticulous control of structural parameters, which significan…
High-pressure growth effects on the superconducting properties of Sm-based oxypnictide superconductors
Mohammad Azam, Manasa Manasa, Tatiana Zajarniuk +8
High-pressure synthesis can be an effective method for improving the sample quality of materials as well as their superconducting properties. In this paper, the synthesis process o…
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…
Copper doping effects on the superconducting properties of Sm-based oxypnictides
Mohammad Azam, Manasa Manasa, Tatiana Zajarniuk +8
A systematic investigation has been performed by synthesis and comprehensive characterization of a series of SmFe1-xCuxAsO0.8F0.2 bulks (x = 0 to 0.2). These samples are well chara…
Effect of impurity phase and high-pressure synthesis on the superconducting properties of CaKFe4As4
Manasa Manasa, Mohammad Azam, Tatiana Zajarniuk +5
AeAFe4As4 (Ae = Ca, A = K; 1144) having a transition temperature of 35 K is a stoichiometric family of iron-based superconductors (FBS). Here, we present a detailed study of a high…
Enhancement of Superconducting Properties of Polycrystalline CaKFe4As4 by High-Pressure Growth
Manasa Manasa, Mohammad Azam, Tatiana Zajarniuk +5
High-pressure growth is a unique method to improve the sample quality and size. Here, we have used the high gas pressure and high-temperature synthesis (HP-HTS) method to grow CaKF…
Antimony Doping Effect on the Superconducting Properties of SmFeAs(O,F)
Mohammad Azam, Manasa Manasa, Tatiana Zajarniuk +5
We report the synthesis and characterization of a series of antimony-doped SmFeAs1-xSbxO0.8F0.2 (x = 0, 0.01, 0.03, 0.05, 0.1, 0.2, and 0.3) bulks to investigate the twin doping ef…
Optimization of Synthesis Parameters and Superconducting Properties of GdFeAsO1-xFx
Mohammad Azam, Manasa Manasa, Tatiana Zajarniuk +5
REFeAsO (RE1111; RE: rare earth) belongs to the 1111 family of iron-based superconductors (FBS), which illustrates the enhancement of the superconducting transition (Tc) with small…
Comparison of Gd addition effect on the superconducting properties of FeSe0.5Te0.5 bulks under ambient and high-pressure conditions
Manasa Manasa, Mohammad Azam, Tatiana Zajarniuk +6
We have prepared a series of (FeSe0.5Te0.5 + xGd) bulk samples, with x = 0, 0.03, 0.05, 0.07, 0.1 and 0.2, through the convenient solid-state reaction method at ambient pressure (C…
High gas pressure and high-temperature synthesis (HP-HTS) technique and its impact on iron-based superconductors
Mohammad Azam, Manasa Manasa, Andrzej Morawski +2
The high-pressure growth technique generally plays an important role in the improvement of the sample quality and the enhancement of various physical and magnetic properties of mat…