26 citations · 165 across the 16 of their papers we have counts for
6 papers · 1 filter
Preformed Cooper Pairs in a Triclinic Iron Pnictide Superconductor
Zezhong Li, Wenshan Hong, Honglin Zhou +10
Electron pairing along with phase coherence generates superconductivity below the critical temperature (). In underdoped high- cuprates, these two quantum phenomena may o…
Phase Separation, Competition, and Volume Fraction Control in NaFeCoAs
Long Ma, J. Dai, P. S. Wang +9
We report a detailed nuclear magnetic resonance (NMR) study by combined Na and As measurements over a broad range of doping to map the phase diagram of NaFeCo…
Review of nuclear magnetic resonance studies on iron-based superconductors
Long Ma, Weiqiang Yu
The newly discovered iron-based superconductors have triggered renewed enormous research interest in the condensed matter physics community. Nuclear magnetic resonance (NMR) is a l…
Simultaneous optimization of spin fluctuations and superconductivity under pressure in an iron-based superconductor
G. F. Ji, J. S. Zhang, Long Ma +9
We present a high-pressure NMR study of the overdoped iron pnictide superconductor NaFeCoAs. The low-energy antiferromagnetic spin fluctuations in the normal stat…
Microscopic coexistence of superconductivity and antiferromagnetism in underdoped Ba(Fe1-xRux)2As2
Long Ma, G. F. Ji, Jia Dai +5
We use As nuclear magnetic resonance (NMR) to investigate the local electronic properties of Ba(FeRu)As ( 0.23). We find two phase transitions, to…
Local spin fluctuations in iron-based superconductors: 77Se and 87Rb NMR measurements of Tl0.47Rb0.34Fe1.63Se2
Long Ma, G. F. Ji, J. Dai +5
We report nuclear magnetic resonance (NMR) studies of the intercalated iron selenide superconductor (Tl, Rb)FeSe ( K). Single-crystal measurements up to…