Browsing Articole ştiinţifice by Author "ZALESKI, A. J."

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Coexistence of superconductivity and weak ferromagnetism at the interface of twisting bicrystals of 3D topological insulator Bi1−xSbx (0.07<x<0.2)

MUNTYANU, F. M.; GILEWSKI, A.; ZALESKI, A. J.; CHISTOL, V.; ROGACKI, K. (Elsevier, 2017)

In the normal state the 3D topological insulator Bi1−xSbx is diamagnetic and does not show superconductivity because of the extremely low carrier density. Despite this, we have found that the small crystallite disorientation ...
Evolution of superconductivity and weak magnetism in inclination interfaces of Bi, Sb and Bi1-xSbx (0.07 ≤x ≤ 0.2) alloys

MUNTYANU, F. M.; NENKOV, K.; ZALESKI, A. J.; MUNTEAN, N.; CHISTOL, V. (Elsevier, 2019)

Using Quantum Design SQUID magnetometer, we studied the magnetic and superconducting properties of high quality inclination bicrystal interfaces of Bi, Sb and 3D topological insulator Bi1-xSbx (0.06≤x≤0.2). One or two ...
Fermi-surface rearrangement in Bi bicrystals with twisting superconducting crystallite interfaces

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; CHISTOL, V. (American Physical Society, 2007)

We report an investigation of quantum oscillations of Hall resistance and magnetoresistance in Bi bicrystals with superconducting interface of twisting type. From the observed quantum oscillations, we find a similar Fermi ...
Ferromagnetism in supraconducting bicrystals of Bi-Sb alloys

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; CHISTOL, V. (Institutul de Fizică Aplicată, 2010)

We studied the magnetic moment m(T) of superconducting bicrystals of B1-x – Sbx (x ≤ 0.2) alloys (diamagnetic and paramagnetic), as a function of applied magnetic field up to 20 kOe at several temperatures (2-100 K).
High-field peculiarities of galvanomagnetic quantum oscillations in Bi bicrystals with nano-width superconducting crystallite interfaces

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; PALEWSKI, T.; CHISTOL, V. (Elsevier, 2013)

We present the result of high-field (up to 40T) galvanomagnetic study of bismuth bicrystals with nano-width crystallite interfaces (100nm). At B>2T directed along the interface plane in the quantum oscillations spectrum ...
High-fields longitudinal hall effect in bi bicrystals with nano-width superconducting crystallite interfaces

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; PALEWSKI, T.; CHISTOL, V. (Institutul de Fizică Aplicată, 2012)

The results indicate that in bicrystals there are spin-oriented carriers which are located in spectrum of Landau levels at particular orientation of the magnetic field.
Influence of the pronounced degree of imperfection on the superconductivity, weak magnetism, and quantum transport of crystallite structures with one or more nano-width multilayer interfaces of Bi1-xSbx (0.07 ≤ x ≤ 0.2) alloys

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; CHISTOL, V. (Elsevier, 2020)

Magnetic, superconducting, and quantum oscillation phenomena in crystallite structures with nano-width multilayer interfaces of three-dimensional topological insulator Bi1-xSbx (0.07 ≤ x ≤ 0.2) have been studied. Samples ...
Magnetic properties and superconductivity of nano-width crystallite interfaces of bicrystals and tricrystals of Bi1−x–Sbx (x ≤ 0.2) alloys

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; CHISTOL, V. (John Wiley & Sons, Inc., 2011)

The magnetic properties of bicrystals and tricrystals of Bi1−x–Sbx (x ≤ 0.2) alloys were studied in a temperature range of 1.8–100 K. The ferromagnetic-like hysteresis loops are found in tricrystals and some bicrystals. ...
Magnetic properties of bi-, tri- and multicrystals of 3D topological insulator Bi1−x–Sbx (0.06≤ x ≤0.2)

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ROGACKI, K.; ZALESKI, A. J.; FUKS, G.; CHISTOL, V. (Elsevier, 2014)

The magnetic properties of bi-, tri- and multicrystals of 3D topological insulator Bi1−xSbx (0.06<x<0.22) were studied in the temperature range 1.6–300 K and fields up to 70 kOe using an SQUID magnetometer. Two superconducting ...
Magnetization anomalies in superconducting interfaces of bicrystals and tricrystals of Bi1-x - Sbx alloys

MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; CHISTOL, V. (Institutul de Fizică Aplicată, 2010)

We have studied the magnetic properties of the bicrystals and tricrystals of Bi1-x - Sbx (x ≤ 0.2) alloys in the temperature range (1.8 - 100) K and magnetic fields up 20 kOe. It is using the superconducting quantum ...
Superconducting and weak ferromagnetic features at interfaces of bicrystals of 3D topological insulator BI 1-XSB X

MUNTYANU, F. M.; ZALESKI, A. J.; ROGACKI, K.; CHISTOL, V. (Institutul de Fizică Aplicată, 2018)

In this report we present the results of study of the magnetic and superconducting properties of bicrystals of 3D topological insulator (TI) Bi1-xSbx (0 ≤x ≤ 0.2) in temperature range 1.8-100K using Quantum Design SQUID ...
Superconducting features at Bi-Sb twisting crystallite interfaces

MUNTYANU, F. M.; GILEWSKI, A.; ZALESKI, A. J.; CHISTOL, V.; ROGACKI, K. (Institutul de Fizică Aplicată, 2016)

We present the results of the study of quantum oscillations, magnetic and superconducting properties of the twisting bicrystals of 3D topological insulator Bi1-xSbx (0.07 < x < 0.15) at low temperatures and in magnetic ...
Superconductivity and ferromagnetism in twisting Bi-Sb interfaces

MUNTYANU, F. M.; GILEWSKI, A.; ZALESKI, A. J.; CHISTOL, V.; ROGACKI, K. (Institutul de Fizică Aplicată, 2016)

The hysteresis loops and temperature dependences of magnetic moment m(T) are studded in large disorientation angle (LDA) twisting interfaces of Bi1-xSbx (0 < x < 0. 2) alloys. They were found one superconducting transition ...

Browsing Articole ştiinţifice by Author "ZALESKI, A. J."

Browsing Articole ştiinţifice by Author "ZALESKI, A. J."

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