BKT Phase Transitions in Magnetic Systems: Formations of Narrow Stripes and Vortex–Antivortex Pairs in a Quasi2D Ferromagnet K_{2}CuF_{4}
© The Physical Society of Japan
This article is on
Formations of Narrow Stripes and Vortex–Antivortex Pairs in a QuasiTwoDimensional Ferromagnet K_{2}CuF_{4}
J. Phys. Soc. Jpn. 90, 014702 (2021).
Cryogenic Lorentz transmission electron microscopy directly shows that vortex and antivortex pairs emerge in a quasitwodimensional ferromagnet K_{2}CuF_{4}. 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 QuasiTwoDimensional Ferromagnet K_{2}CuF_{4}
J. Phys. Soc. Jpn. 90, 014702 (2021).
Share this topic
Fields
Related Articles

A Solvent Viscositydependent Thermoelectric Conversion Efficiency
Structure and mechanical and thermal properties in condensed matter
2021426
We found a beautiful empirical rule (α ∝ η^{0.4}) between the electrochemical Seebeck coefficient α for Fe^{2+}/Fe^{3+} redox pair and viscosity coefficient η of the organic solvent.

Nanospaceconfined Helium Shows Fourdimensional Quantum Phase Transition (QPT)
Structure and mechanical and thermal properties in condensed matter
2021419
Helium confined in a nanoporous material shows a four dimensional superfluid transition. This is a unique example of four dimensional critical phenomenon caused by strong quantum fluctuation.

Phase Transition and Its Universality Class for a Quantum Spin Chain
Statistical physics and thermodynamics
Magnetic properties in condensed matter
2021329
We numerically diagonalize the DimerTrimer (DT) model Hamiltonian around the SU(3) symmetric point. As a result, we discover the phase transition at this point which belongs to the BerezinskiiKosterlitzThouless (BKT)like universality class.

Splitting Walls: Interplay of Different Orders in Multiferroic Materials
Magnetic properties in condensed matter
Statistical physics and thermodynamics
2021329
We theoretically showed an intrinsic splitting instability of composite domain walls in multiferroic materials under field drive. This instability is a direct result of the coexistence of multiple orders in the system.

Random Numbers Can Help Solve Difficult Problems in Manybody Physics
Mathematical methods, classical and quantum physics, relativity, gravitation, numerical simulation, computational modeling
Electronic transport in condensed matter
Magnetic properties in condensed matter
2021329
Theorists review a random state vectorbased description of quantum manybody systems which helps greatly reduce the computational burden involved in their numerical simulations, opening doors to applications in quantum computing.