Advanced nanomaterials, printing processes, and applications for flexible hybrid electronics

S Park, H Kim, JH Kim, WH Yeo - Materials, 2020 - mdpi.com
Recent advances in nanomaterial preparation and printing technologies provide unique
opportunities to develop flexible hybrid electronics (FHE) for various healthcare applications …

Experimentally evaluating the origin of dilute magnetism in nanomaterials

LMC Pereira - Journal of Physics D: Applied Physics, 2017 - iopscience.iop.org
Reports of room-temperature ferromagnetism continue to emerge for an ever-growing range
of nanomaterials with a small or even vanishing concentration of magnetic atoms. Dilute …

Band structure evolution and the origin of magnetism in (Ga, Mn) As: From paramagnetic through superparamagnetic to ferromagnetic phase

L Gluba, O Yastrubchak, JZ Domagala, R Jakiela… - Physical Review B, 2018 - APS
The high-spectral-resolution optical studies of the energy gap evolution, supplemented with
electronic, magnetic, and structural characterization, show that the modification of the GaAs …

Magnetic Properties of Wurtzite (Ga, Mn) As

K Gas, J Sadowski, M Sawicki - Journal of Magnetism and Magnetic …, 2021 - Elsevier
Here we report on detailed studies of the magnetic properties of the wurtzite (Ga, Mn) As
cylindrical shells. Ga 0.94 Mn 0.06 As shells have been grown by molecular beam epitaxy at …

In situ compensation method for high-precision and high-sensitivity integral magnetometry

K Gas, M Sawicki - Measurement Science and Technology, 2019 - iopscience.iop.org
The ongoing process of the miniaturization of spintronics and magnetic-films-based devices,
as well as a growing necessity for basic material research place stringent requirements on …

Enhanced ferromagnetism in cylindrically confined MnAs nanocrystals embedded in wurtzite GaAs nanowire shells

A Kaleta, S Kret, K Gas, B Kurowska, SB Kryvyi… - Nano Letters, 2019 - ACS Publications
Nearly a 30% increase in the ferromagnetic phase transition temperature has been
achieved in strained MnAs nanocrystals embedded in a wurtzite GaAs matrix. Wurtzite GaAs …

A simplified method of the assessment of magnetic anisotropy of commonly used sapphire substrates in SQUID magnetometers

K Gas, M Sawicki - Materials, 2022 - mdpi.com
Solid-state wafers are indispensable components in material science as substrates for
epitaxial homo-or heterostructures or carriers for two-dimensional materials. However …

Impact of substrate temperature on magnetic properties of plasma-assisted molecular beam epitaxy grown (Ga, Mn) N

K Gas, JZ Domagala, R Jakiela, G Kunert… - Journal of Alloys and …, 2018 - Elsevier
A range of high quality Ga 1− x Mn x N layers have been grown by molecular beam epitaxy
with manganese concentration 0.2≤ x≤ 10%, having the x value tuned by changing the …

Cubic anisotropy in (Ga, Mn) As layers: Experiment and theory

M Sawicki, O Proselkov, C Sliwa, P Aleshkevych… - Physical Review B, 2018 - APS
Historically, comprehensive studies of dilute ferromagnetic semiconductors, eg, p-type (Cd,
Mn) Te and (Ga, Mn) As, paved the way for a quantitative theoretical description of effects …

In situ compensation method for precise integral SQUID magnetometry of miniscule biological, chemical, and powder specimens requiring the use of capsules

K Gas, M Sawicki - Materials, 2022 - mdpi.com
Steadily growing interest in magnetic characterization of organic compounds for therapeutic
purposes or of other irregularly shaped specimens calls for refinements of experimental …