423 citations · 3.8k across the 61 of their papers we have counts for
9 papers · 1 filter
Single crystal growth and superconducting properties of LiFeAs
Bumsung Lee, Seunghyun Khim, Jung Soo Kim +2
We report the successful growth of high quality single crystals of LiFeAs with lateral sizes up to 5 x 5 mm2 by the Sn-flux method. Electrical resistivity studies reveal that the s…
Quantitative determination of anisotropic magnetoelectric coupling in BiFeO-CoFeO nanostructures
Yoon Seok Oh, S. Crane, H. Zheng +3
The transverse and longitudinal magnetoelectric susceptibilities (MES) were quantitatively determined for (001) heteroepitaxial BiFeO-CoFeO nanostructures. Both o…
NMR study on the stability of the magnetic ground state in MnCrO
Dong Young Yoon, Soonchil Lee, Yoon Seok Oh +1
The canting angles and fluctuation of the magnetic ion spins of spinel oxide MnCrO were studied by nuclear magnetic resonance (NMR) at low temperatures, which has a col…
Determination of the intrinsic ferroelectric polarization in orthorhombic HoMnO3
S M Feng, Y S Chai, J L Zhu +6
Whether large ferroelectric polarization P exists in the orthorhombic HoMnO3 with the E-type antiferromagnetic spin ordering or not remains as one of unresolved, challenging issues…
Electron-hole asymmetry in Co- and Mn-doped SrFe2As2
J. S. Kim, Seunghyun Khim, H. J. Kim +5
Phase diagram of electron and hole-doped SrFe2As2 single crystals is investigated using Co and Mn substitution at the Fe-sites. We found that the spin-density-wave state is suppres…
Evidence of a universal and isotropic 2Δ/kBTC ratio in 122-type iron pnictide superconductors over a wide doping range
Xiaohang Zhang, Yoon Seok Oh, Yong Liu +8
We have systematically investigated the doping and the directional dependence of the gap structure in the 122-type iron pnictide superconductors by point contact Andreev reflection…