Andreev Spectroscopy of EuCsFe4As4 Stoichiometric Superconducting Pnictide

SA Kuzmichev, KS Pervakov, VA Vlasenko… - JETP Letters, 2022 - Springer
EuCsFe4As4 pnictide (1144 family) single crystals with a critical temperature of T c≈ 36.8 K
and optimal superconducting properties in the stoichiometric composition are grown …

Upper critical field and tunneling spectroscopy of underdoped Na (Fe, Co) As single crystals

L Morgun, S Kuzmichev, I Morozov, A Degtyarenko… - Materials, 2023 - mdpi.com
A comprehensive study of superconducting properties of underdoped NaFe 0.979 Co 0.021
As single crystals by a combination of upper critical field measurements and incoherent …

Determination of the Superconducting Order Parameter of BaFe1.92Ni0.08As2 Weakly Underdoped Pnictides by Two Complementary Techniques

AV Sadakov, AV Muratov, SA Kuzmichev… - JETP Letters, 2022 - Springer
The structure of the superconducting order parameter of weakly underdoped BaFe1. 92Ni0.
08As2 pnictides with the critical temperature T c≈ 18.2 K has been determined. Two …

Temperature Dependence of the Superconducting Order Parameter in Stoichiometric Alkali Metal-Based Pnictide EuCsFeAs

T Kuzmicheva, K Pervakov, V Vlasenko… - … of Superconductivity and …, 2024 - Springer
We present the study of the superconducting order parameter in single crystals of alkali
metal EuCsFe 4 As 4 pnictide belonging to the novel 1144 family, turning to the …

Multiple Andreev reflections effect spectroscopy of LiFeAs single crystals: Three superconducting order parameters and their temperature evolution

S Kuzmichev, T Kuzmicheva, I Morozov, A Boltalin… - SN Applied …, 2022 - Springer
The structure of the superconducting order parameter of LiFeAs is studied by incoherent
multiple Andreev reflections effect (IMARE) spectroscopy. The high transparent …

Multiple Andreev Reflection Effect Spectroscopy of Underdoped NaFe1 –xCoxAs Single Crystals

SA Kuzmichev, IV Morozov, AI Shilov, EO Rakhmanov… - JETP Letters, 2023 - Springer
We study the structure of the superconducting order parameter in underdoped NaFe1–x Co
x As pnictides with T c≈ 19–21 K related to the 111 family. Using incoherent multiple …

Comparison of the Gap Structure of Underdoped and Overdoped Superconducting Pnictides BaFe2 –xNixAs2

TE Kuzmicheva, SA Kuzmichev, KS Pervakov… - JETP Letters, 2023 - Springer
We compare the structure of the superconducting order parameter of overdoped BaFe1.
88Ni0. 12As2 and underdoped BaFe1. 92Ni0. 08As2 pnictides with similar K. Using …

Superconducting gap structure of slightly overdoped NaFe Co As pnictides: joint SnS-Andreev spectroscopy and specific heat study

S Kuzmichev, A Muratov, S Gavrilkin, I Morozov… - The European Physical …, 2024 - Springer
We present a study of the superconducting order parameter in slightly overdoped alkali-
metal-based pnictides NaFe\(_ {0.955}\) Co\(_ {0.045}\) As with\(T_c\approx 21\) K using a …

Mutliple-gap Superconductivity of Nonmagnetic Stoichiometric CaKFe4As4 Pnictide

TE Kuzmicheva, SA Kuzmichev, AS Medvedev - JETP Letters, 2024 - Springer
Using incoherent multiple Andreev reflection effect spectroscopy of planar break-junctions,
we have studied the superconducting gap structure of CaKFe4As4 pnictides (the 1144 …

Многощелевая сверхпроводимость немагнитного стехиометрического пниктида CaKFeAs

ТЕ Кузьмичева, СА Кузьмичёв… - Письма в Журнал …, 2024 - mathnet.ru
С помощью спектроскопии эффекта некогерентных многократных андреевских
отражений, реализованного в планарных контактах на микротрещине, исследована …