High-transition temperature (high-T c) superconductivity in the iron pnictides or
chalcogenides emerges from the suppression of the static antiferromagnetic order in their …

Magnetic oxyselenides have been a topic of research for several decades, firstly in the
context of photoconductivity and thermoelectricity owing to their intrinsic semiconducting …

In tetragonal SrCo 2 As 2 single crystals, inelastic neutron scattering measurements
demonstrated that strong stripe-type antiferromagnetic (AFM) correlations occur at a …

Polarized Raman-scattering spectra of superconducting, single-crystalline FeSe evidence
pronounced phonon anomalies with temperature reduction. A large (∼ 6.5%) hardening of …

Magnetic field (H) effects on a correlated electron system with a spin-state degree of
freedom are examined. The effective Hamiltonian derived from the two-orbital Hubbard …

The processing and analysis of synchrotron data can be a complex task, requiring
specialized expertise and knowledge. Our previous work addressed the challenge of X-ray …

The layered perovskite cobaltite R BaCo 2 O 5.5 (R: rare-earth elements) exhibits an abrupt
temperature-induced metal-insulator transition (MIT) that has been attributed to spin-state …

The existence of large instantaneous local magnetic moments in paramagnetic phases is a
direct signature of Mott localization. In order to track the do** evolution of fluctuating local …

The relationship between antiferromagnetic spin fluctuations and superconductivity has
become a central topic of research in studies of superconductivity in the iron pnictides. We …

With muon spin rotation (μSR) we studied the transition between the orthorhombic
antiferromagnetic (o-AF) and the tetragonal antiferromagnetic (t-AF) states of a weakly …