BKT Phase Transitions in Magnetic Systems: Formations of Narrow Stripes and Vortex–Antivortex Pairs in a Quasi-2D Ferromagnet K2CuF4
© The Physical Society of Japan
This article is on
Formations of Narrow Stripes and Vortex–Antivortex Pairs in a Quasi-Two-Dimensional Ferromagnet K2CuF4
(JPSJ Editors' Choice)
J. Phys. Soc. Jpn.
90,
014702
(2021)
.
Cryogenic Lorentz transmission electron microscopy directly shows that vortex and antivortex pairs emerge in a quasi-two-dimensional ferromagnet K2CuF4. This work may reveal the nature of Berezinskii, Kosterlitz, and Thouless phase transition in a magnetic system.
Formations of Narrow Stripes and Vortex–Antivortex Pairs in a Quasi-Two-Dimensional Ferromagnet K2CuF4
(JPSJ Editors' Choice)
J. Phys. Soc. Jpn.
90,
014702
(2021)
.
Share this topic
Fields
Related Articles
-
Negative Apparent Viscosity in Liquid Crystals
Cross-disciplinary physics and related areas of science and technology
Electromagnetism, optics, acoustics, heat transfer, and classical and fluid mechanics
Structure and mechanical and thermal properties in condensed matter
2026-6-8
Electrically driven liquid-crystal turbulence generates self-sustained flow and negative apparent viscosity. The fluorinated, chemically robust nematic PPDFB shows a substantially larger negative-viscosity effect than Schiff-base nematics.
-
Verification of Magnetic Structure Observation at the Atomic Scale
Atomic and molecular physics
Cross-disciplinary physics and related areas of science and technology
Nuclear physics
2026-6-2
Magnetic neutron scattering holography (MNH) were performed on a Fe0.08Co0.92 single crystal. the resulting holograms provided the first experimental evidence that MNH is sensitive to magnetic signals.
-
Magnetic-Field Driven Switching of Multipolar Order in an f-Electron System
Magnetic properties in condensed matter
2026-5-22
This study investigates high-rank multipole physics in f-electron systems, providing the first clear experimental evidence for field-induced switching of ferro-quadrupole order in a non-Kramer ion system, along with a new conceptual framework
-
Role of the Diffusion Layer in Energy Devices
Cross-disciplinary physics and related areas of science and technology
Structure and mechanical and thermal properties in condensed matter
2026-5-1
In many energy devices, electron transfer occurs between ions dissolved in the electrolyte and the electrodes. For keep current flowing, new ions must be supplied continuously to the electrode surface from the bulk region. The diffusion layer’s role in diffusive mass transfer was clarified using the rotating disk electrode method.
-
Unveiling the Nodal Topology of the Spin-Triplet Superconductor Candidate UTe2
Structure and mechanical and thermal properties in condensed matter
Superconductivity
2026-4-13
Using high-quality UTe2 (Tc = 2.1 K), we identify its nodal gap structure. Field-angle‑resolved specific‑heat reveals a b-axis singularity, supporting spin-triplet superconductivity with nodes along the b axis.