45 citations · 107 across the 6 of their papers we have counts for
6 papers
Weak doping dependence of the antiferromagnetic coupling between nearest-neighbor Mn spins in (BaK)(ZnMn)As
M. A. Surmach, B. J. Chen Z. Deng, C. Q. Jin +4
Dilute magnetic semiconductors (DMS) are nonmagnetic semiconductors doped with magnetic transition metals. The recently discovered DMS material (BaK)(ZnMn$_{y…
Impurity effects on spin dynamics in magnetic and superconducting iron pnictides and chalcogenides
M. A. Surmach, P. Y. Portnichenko, J. T. Park +5
In this paper we summarize the effects of magnetic and nonmagnetic impurities on the spin dynamics in Febased superconductors and their parent compounds. The effects of chemical su…
Magnetic field dependence of the neutron spin resonance in CeB6
P. Y. Portnichenko, S. V. Demishev, A. V. Semeno +12
In zero magnetic field, the famous neutron spin resonance in the f-electron superconductor CeCoIn5 is similar to the recently discovered exciton peak in the non-superconducting CeB…
Magnon spectrum of the helimagnetic insulator Cu2OSeO3
P. Y. Portnichenko, J. Romhanyi, Y. A. Onykiienko +11
Complex low-temperature ordered states in chiral magnets are typically governed by a competition between multiple magnetic interactions. The chiral-lattice multiferroic Cu2OSeO3 be…
Superconducting properties and pseudogap from preformed Cooper pairs in the triclinic (CaFePtAs)PtAs
M. A. Surmach, F. Brückner, S. Kamusella +11
Using a combination of muon-spin relaxation (SR), inelastic neutron scattering (INS) and nuclear magnetic resonance (NMR), we investigated the novel iron-based superconductor wi…
Momentum-space structure of quasielastic spin fluctuations in Ce3Pd20Si6
P. Y. Portnichenko, A. S. Cameron, M. A. Surmach +8
Among heavy-fermion metals, CePdSi is one of the heaviest-electron systems known to date. Here we used high-resolution neutron spectroscopy to observe low-energy mag…