Freak oscillation in a dusty plasma

Abstract

The freak oscillation in one-dimensional dusty plasma is studied numerically by particle-in-cell method. Using a perturbation method, the basic set of fluid equations is reduced to a nonlinear Schrödinger equation (NLSE). The rational solution of the NLSE is presented, which is proposed as an effective tool for studying the rogue waves in dusty plasma. Additionally, the application scope of the analytical solution of the rogue wave described by the NLSE is given.

Magnetic states of iron-based two-leg ladder tellurides

“…In fact, calculations based on the density matrix renormalization group [30] observed clear tendencies to form Cooper pairs at intermediate Hubbard coupling strengths upon light doping. Similar self-doping effects under pressure were also obtained using DFT calculations [28]. BaFe 2 Se 3 is another recently discovered superconducting ladder under high pressure [11].…”

“…As a first step, we considered the spin polarized version of the generalized gradient approximation (GGA) potential [37] to study the lattice ground-state properties of bulk RbFe 2 Te 3 . Since the PBE-GGA function is known to give an accurate description of the two-leg ladder systems [28,38,39], we do not consider the effective Hubbard U eff . Both the lattice constants and atomic positions were fully relaxed with different spin configurations until the force on each atom was below 0.005 eV/Å.…”

“…For example, KFe 2 Se 3 was observed to have a CX-type stripe AFM order [31], similarly as CsFe 2 Se 3 [21] and RbFe 2 Se 3 [23]. In particular, the KFe 2 S 3 compound was predicted to display a first-order transition under high pressure in our recent work [28].…”

“…Since then, several experimental and theoretical studies have followed [23][24][25][26][27]. Above 10 GPa, a metal-insulator transition (MIT) and associated firstorder magnetic phase transition were recently observed for BaFe 2 S 3 [28,29]. One possible explanation is that pressure changes the bandwidth of these materials, thus altering the degree of correlation [10,11].…”

Quasi-Two-Dimensional Fermi Surfaces and Unitary Spin-Triplet Pairing in the Heavy Fermion Superconductor UTe2

“…In either case, the situation seems very different from UGe 2 , UCoGe, URhGe, or other layered superconductors. The two-leg ladder structure has been extensively studied in cuprate superconductors [37,38] and lately also found in some Fe-based superconductors [39][40][41]. It has attracted much interest over the past years in both theory and experiment as an alternative and simpler platform for unconventional superconductivity.…”