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2 Bulletin of the Polish Academy of Sciences. Technical Sciences

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Quantum magnetostriction effect resulting from the asymmetric structure of matter measured with EPR spectrometer

100%

Sikoń M. , Bidzinska E.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2023

tom Vol. 71, nr 1

art. no. e144575

This paper explains the rotation and displacement as well as the couple and force stress in material with unpaired electrons/nucleons subjected to a magnetic field. This phenomenon is described in terms of quantum mechanics for nanoparticle and quantum statistical mechanics for loose nanomaterial. Quantitative calculations are carried out based on experimental data collected under the magnetic field of an EPR spectrometer from a set of nanocrystallites of hydrated copper sulfate.

Contribution of planetary electronic structure of atom to molecular interaction and properties of nanocomposites

80%

Sikoń M. , Bidzinska E. , Marcinowski J.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2019

tom Vol. 67, nr 1

77--89

The paper proposes a study of molecular interactions using the planetary model of the atomic structure. The description refers to transfer of the interactions by electrons bonded with an atom in a planetary system. In molecules we refer to analysis of electrons that remain unpaired during the formation of chemical compounds. The planetary electronic state of molecular interactions is defined by considering the action arm for interatomic forces. Then the interaction torque is defined. The problem is studied in a collection of atoms forming a nanoparticle and then analysis is carried on in the entire volume of the nanocomposite, which is defined as a set of the nanoparticles in a field of matrix-nanofiller interactions. As a result, new mechanical, magnetic, and optical properties of the nanocomposite arise and are described herein. The atomic-scale phenomena are described by both classical and quantum mechanics and are then transferred to the nanoparticle scale by applying statistical mechanics. The quantum solutions for the optically active electrons form the basis for the optical properties of the nanocomposite using forced gyrobirefringence and Maxwell equations. The results of the theoretical analysis are confirmed by experiment using an electron paramagnetic resonance spectrometer.