86 citations · 393 across the 19 of their papers we have counts for
19 papers
Ferromagnetic Resonance in a Magnetically Dilute Percolating Ferromagnet: An Experimental and Theoretical Study
Y. K. Edathumkandy, K. Das, K. Gas +4
Ferromagnetic resonance (FMR) serves as a powerful probe of magnetization dynamics and anisotropy in percolating ferromagnets, where short-range interactions govern long-range magn…
Pair anisotropy in disordered magnetic systems
K. Das, N. Gonzalez Szwacki, K. Gas +3
Accurate modelling of magnetism is pivotal for elucidating the microscopic origins of magnetic phenomena in functional materials. However, for a specified class of materials, such…
Electric field manipulation of magnetization in an insulating dilute ferromagnet through piezoelectromagnetic coupling
D. Sztenkiel, K. Gas, N. Gonzalez Szwacki +7
We report magnetization changes generated by an electric field in ferromagnetic GaMnN grown by molecular beam epitaxy. Two classes of phenomena have been revealed. Firs…
Introducing the step Monte Carlo method for simulating dynamic properties
Dariusz Sztenkiel
In this work, we introduce a simple modification of the Monte Carlo algorithm, which we call step Monte Carlo (sMC). The sMC approach allows to simulate processes far from equilibr…
Spin orbital reorientation transitions induced by magnetic field
Dariusz Sztenkiel
Here we report on a new effect similar to the spin reorientation transition (SRT) that takes place at two magnetic fields of and . The effect is observed in…
Comparative study of magnetic properties of Mn magnetic clusters in GaN using classical and quantum mechanical approach
Yadhu Krishnan Edathumkandy, Dariusz Sztenkiel
Currently, simulations of many-body quantum systems are known to be computationally too demanding to be solved on classical computers. The main problem is that the computation time…
Crystal field model simulations of magnetic response of pairs, triplets and quartets of Mn ions in GaN
D. Sztenkiel, K. Gas, J. Z. Domagala +2
A ferromagnetic coupling between localized Mn spins was predicted in a series of \textit{ab initio} and tight binding calculations and experimentally verified for the dilute magnet…
Heavy-hole band splitting observed in mobility spectrum of p-type InAs grown on GaAs substrate
Jaroslaw Wrobel, Gilberto Umana-Membreno, Jacek Boguski +6
High quality berylium doped InAs layer grown by MBE on GaAs substrate has been examined via magnetotransport measurements and high resolution quantitative mobility spectrum analysi…
Electrical characteristics of vertical-geometry Schottky junction to magnetic insulator (Ga,Mn)N heteroepitaxially grown on sapphire
Karolina Kalbarczyk, Krzysztof Dybko, Katarzyna Gas +7
Schottky barrier height and the ideality factor are established for the first time in the single phase (Ga,Mn)N using a vertical geometry device. The material has been heteroep…
Impact of substrate temperature on magnetic properties of plasma-assisted molecular beam epitaxy grown (Ga,Mn)N
Katarzyna Gas, Jaroslaw Z. Domagala, Rafal Jakiela +12
A range of high quality Ga1-xMnxN layers have been grown by molecular beam epitaxy with manganese concentration 0.2 < x < 10%, having the x value tuned by changing the growth tempe…
Stretching magnetism with an electric field in a nitride semiconductor
D. Sztenkiel, M. Foltyn, G. P. Mazur +11
By direct magnetization measurements, performed employing a new detection scheme, we demonstrate an electrical control of magnetization in wurtzite (Ga,Mn)N. In this dilute magneti…
Manipulating Mn--Mg cation complexes to control the charge- and spin-state of Mn in GaN
Thibaut Devillers, Mauro Rovezzi, Nevill Gonzalez Szwacki +15
Owing to the variety of possible charge and spin states and to the different ways of coupling to the environment, paramagnetic centres in wide band-gap semiconductors and insulator…
Thickness dependence of magnetic properties of (Ga,Mn)As
O. Proselkov, D. Sztenkiel, W. Stefanowicz +4
We report on a monotonic reduction of Curie temperature in dilute ferromagnetic semiconductor (Ga,Mn)As upon a well controlled chemical-etching/oxidizing thinning from 15 nm down t…
Homogenous and heterogeneous magnetism in (Zn,Co)O
M. Sawicki, E. Guziewicz, M. I. Lukasiewicz +21
A series of (ZnO)m(CoO)n digital alloys and superlattices grown by atomic layer deposition has been investigated by a range of experimental methods. The data provide evidences that…
Properties and characterization of ALD grown dielectric oxides for MIS structures
S. Gieraltowska, D. Sztenkiel, E. Guziewicz +7
We report on an extensive structural and electrical characterization of under-gate dielectric oxide insulators Al2O3 and HfO2 grown by Atomic Layer Deposition (ALD). We elaborate t…
Reconciling results of tunnelling experiments on (Ga,Mn)As
Tomasz Dietl, Dariusz Sztenkiel
A theoretical model is presented which allows to reconcile findings of scanning tunnelling spectroscopy for (Ga,Mn)As [Richardella et al. Science 327, 66 (2010)] with results for t…
Experimental probing of exchange interactions between localized spins in the dilute magnetic insulator (Ga,Mn)N
A. Bonanni, M. Sawicki, T. Devillers +16
The sign, magnitude, and range of the exchange couplings between pairs of Mn ions is determined for (Ga,Mn)N and (Ga,Mn)N:Si with x < 3%. The samples have been grown by metalorgani…
Quantum effects in linear and non-linear transport of T-shaped ballistic junction
J. Wrobel, P. Zagrajek, M. Czapkiewicz +6
We report low-temperature transport measurements of three-terminal T-shaped device patterned from GaAs/AlGaAs heterostructure. We demonstrate the mode branching and bend resistance…
Structural and paramagnetic properties of dilute Ga1-xMnxN
Wiktor Stefanowicz, Dariusz Sztenkiel, Bogdan Faina +10
Systematic investigations of the structural and magnetic properties of single crystal (Ga,Mn)N films grown by metal organic vapor phase epitaxy are presented. High resolution trans…