Negative thermal expansion in functional materials: controllable thermal expansion by chemical modifications
Negative thermal expansion (NTE) is an intriguing physical property of solids, which is a
consequence of a complex interplay among the lattice, phonons, and electrons …
consequence of a complex interplay among the lattice, phonons, and electrons …
Investigation of electronic structure, magnetic stability, spin coupling, and thermodynamic properties of novel antiferromagnets XMn2Y2 (X= Ca, Sr; Y= P, As)
In the present work, the structural, electronic, magnetic, and thermodynamic properties of
ternary compounds of composition XMn 2 Y 2 (X= Ca, Sr; Y= P, As) are reported. The …
ternary compounds of composition XMn 2 Y 2 (X= Ca, Sr; Y= P, As) are reported. The …
Persistent correlation between superconductivity and antiferromagnetic fluctuations near a nematic quantum critical point in
We present Se 77-NMR measurements on FeSe 1− x S x samples with sulfur content x= 0%,
9%, 15%, and 29%. Twinned nematic domains are observed in the NMR spectrum for all …
9%, 15%, and 29%. Twinned nematic domains are observed in the NMR spectrum for all …
Magnetic fluctuations and superconducting properties of studied by NMR
We report As 75 nuclear magnetic resonance (NMR) studies on a new iron-based
superconductor, CaKFe 4 As 4, with T c= 35 K. As 75 NMR spectra show two distinct lines …
superconductor, CaKFe 4 As 4, with T c= 35 K. As 75 NMR spectra show two distinct lines …
Dynamical Correlations and Screened Exchange on the Experimental Bench: Spectral Properties of the Cobalt Pnictide
Understanding the Fermi surface and low-energy excitations of iron or cobalt pnictides is
crucial for assessing electronic instabilities such as magnetic or superconducting states …
crucial for assessing electronic instabilities such as magnetic or superconducting states …
Crystal and magnetic structure of CaCoAs studied by x-ray and neutron diffraction
Neutron and x-ray diffraction measurements are presented for powders and single crystals
of CaCo 2 As 2. The crystal structure is a collapsed-tetragonal ThCr 2 Si 2-type structure as …
of CaCo 2 As 2. The crystal structure is a collapsed-tetragonal ThCr 2 Si 2-type structure as …
Stripe Antiferromagnetic Spin Fluctuations in
Inelastic neutron scattering measurements of paramagnetic SrCo 2 As 2 at T= 5 K reveal
antiferromagnetic (AFM) spin fluctuations that are peaked at a wave vector of Q AFM=(1/2 …
antiferromagnetic (AFM) spin fluctuations that are peaked at a wave vector of Q AFM=(1/2 …
: A model molecular-field helical Heisenberg antiferromagnet
The metallic compound EuCo 2 P 2 with the body-centered tetragonal ThCr 2 Si 2 structure
containing Eu spins-7/2 was previously shown from single-crystal neutron diffraction …
containing Eu spins-7/2 was previously shown from single-crystal neutron diffraction …
Antiferromagnetism in semiconducting and single crystals
NS Sangeetha, V Smetana, AV Mudring, DC Johnston - Physical Review B, 2018 - APS
Crystals of SrMn 2 Sb 2 and BaMn 2 Sb 2 were grown using Sn flux and characterized by
powder and single-crystal x-ray diffraction, respectively, and by single-crystal electrical …
powder and single-crystal x-ray diffraction, respectively, and by single-crystal electrical …
Frustrated magnetism in the tetragonal CoSe analog of superconducting FeSe
Recently synthesized metastable tetragonal CoSe, isostructural to the FeSe superconductor,
offers a new avenue for investigating systems in close proximity to the iron-based …
offers a new avenue for investigating systems in close proximity to the iron-based …