68 citations · 93 across the 6 of their papers we have counts for
6 papers
Evidence of superconductivity-induced phonon spectra renormalization in alkali-doped iron selenides
M. Opačić, N. Lazarević, M. Šćepanović +4
Polarized Raman scattering spectra of superconducting KFeSe and nonsuperconducting KFeCoSe single crystals were measured in a temperatur…
Raman spectroscopy of K_xCo_{2-y}Se_2 single crystals near the ferromagnet-paramagnet transition
M. Opačić, N. Lazarević, M. M. Radonjić +6
Polarized Raman scattering spectra of the K_xCo_{2-y}Se_2 single crystals reveal the presence of two phonon modes, assigned as of the A_{1g} and B_{1g} symmetry. Absence of additio…
Nonmetallic Low-Temperature Normal State of K0.70Fe1.46Se1.85Te0.15
Kefeng Wang, Hyejin Ryu, Erik Kampert +4
The normal-state in-plane resistivity below the zero-field superconducting transition temperature and the upper critical field Hc2 were measured by suppressing superconductiv…
Magnetic excitations in the spin-1/2 triangular-lattice antiferromagnet CsCuBr
S. A. Zvyagin, M. Ozerov, D. Kamenskyi +8
We report on high-field electron spin resonance (ESR) studies of magnetic excitations in the spin-1/2 triangular-lattice antiferromagnet CsCuBr. Frequency-field diagrams of…
Physical properties of KxNi2-ySe2 single crystals
Hechang Lei, Kefeng Wang, Hyejin Ryu +3
We have synthesized K0.95(1)Ni1.86(2)Se2 single crystals. The single crystals contain K and Ni deficiencies not observed in KNi2Se2 polycrystals. Unlike KNi2Se2 polycrystals, the s…
Multiband effects on beta-FeSe single crystals
Hechang Lei, D. Graf, Rongwei Hu +4
We present the upper critical fields Hc2(T) and Hall effect in beta-FeSe single crystals. The Hc2(T) increases as the temperature is lowered for field applied parallel and perpendi…