Neutrino spin oscillations near a black hole

Mridupawan Deka, Maxim Dvornikov In this work, we study neutrino spin oscillations in the case when they are gravitationally scattered off a rotating Kerr black hole surrounded by a thick magnetized accretion disk. We consider only toroidal magnetic field inside the disk. Neutrino spin precession is caused by the interaction of …

Spin Oscillations in Neutrino Gravitational Scattering

Mridupawan Deka and Maxim Dvornikov We study neutrino spin oscillations while the particles scatter off a rotating black hole surrounded by a thick magnetized accretion disk. Neutrino spin precession is caused by the interaction of the neutrino magnetic moment with the magnetic field in the disk which has both toroidal …

Skyrmion crystal phase on a magnetic domain wall in chiral magnets

Yuki Amari, Muneto Nitta We study a magnetic domain wall in the ferromagnetic phase in chiral magnets in two dimensions with an in-plane easy-axis anisotropy and an out-of-plane Zeeman magnetic field, and find a chiral soliton lattice (spiral) phase beside a ferromegnetic phase inside the domain line, where the former represents …

Domain-wall skyrmion chain and domain-wall bimerons in chiral magnets

Yuki Amari, Calum Ross, and Muneto Nitta We construct domain-wall skyrmion chains and domain-wall bimerons in chiral magnets with an out-of-plane easy-axis anisotropy and without a Zeeman term coupling to a magnetic field. Domain-wall skyrmions are skyrmions trapped inside a domain wall, and they are present in the ferromagnetic (FM) phase of …

Решёточное исследование свойств КХД во внешних условиях: при конечных температуре и плотности, в присутствии вращения, магнитного поля

Брагута В. В., Коломоец Н. В., Котов А. Ю., Кудров И. Е., Неделько С. Н., Роенко А. А., Сычев Д. А., Герштейн Я. А. a) Уравнение состояния кварк-глюонной плазмы в присутствии внешнего магнитного поля и ненулевого химического потенциала. Исследовано уравнение состояния КХД при ненулевой барионной плотности в присутствии внешнего магнитного поля. Были вычислены первые три коэффициента разложения давления в ряд Тейлора по химическому потенциалу, …

Electronic Properties of Pristine and Doped Graphitic Germanium Carbide Nanomeshes

Majed Abdel Salam Nashaat Moharram AbdelGhani (Sarah Gamal, M. Nashaat, Lobna Salah, Nageh Allam and Ahmed A Maarouf) Graphitic germanium carbide (g-GeC) is a novel material that has recently aroused much interest. Porous g-GeC can be fabricated by forming a lattice of pores in pristine g-GeC. In this work, we systematically …

Buzdin, Shapiro, and chimera steps in φ₀ Josephson junctions

Majed Abdel Salam Nashaat Moharram AbdelGhani (Yu. M. Shukrinov, E. Kovalenko, J. Tekić, K. Kulikov, and M. Nashaat) The unique resonance and locking phenomena in the superconductor-ferromagnet-superconductor φ₀ Josephson junction under external electromagnetic radiation are demonstrated when not just the electric but also the magnetic component of external radiation is taken …

Resonance phenomena in a nanomagnet coupled to a Josephson junction under external periodic drive

Majed Abdel Salam Nashaat Moharram AbdelGhani (K. V. Kulikov, D. V. Anghel, M. Nashaat, M. Dolineanu, M. Sameh, and Yu. M. Shukrinov) We investigate resonance phenomena in a system consisting of a nanomagnet coupled to a Josephson junction under external periodic drive. The coupling in the system leads to the appearance …