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6 papers · 2 filters
Separation of antiferromagnetism and high-temperature superconductivity in CaLaFeAs under pressure
Shanta R. Saha, T. Drye, S. K. Goh +9
We report the effect of applied pressures on magnetic and superconducting order in single crystals of the aliovalent La-doped iron pnictide material CaLaFeAs$_{…
Neutron Scattering Evidence for a Periodically-Modulated Superconducting Phase in the Underdoped Cuprate LaBaCuO
Zhijun Xu, C. Stock, Songxue Chi +4
The role of antiferromagnetic spin correlations in high-temperature superconductors remains a matter of debate. We present inelastic neutron scattering evidence that gapless spin f…
Distinguishing and electron pairing symmetries by neutron spin resonance in superconducting NaFeCoAs
Chenglin Zhang, H. -F. Li, Yu Song +17
A determination of the superconducting (SC) electron pairing symmetry forms the basis for establishing a microscopic mechansim for superconductivity. For iron pnictide superconduct…
Coexistence of Half-Metallic Itinerant Ferromagnetism with Local-Moment Antiferromagnetism in Ba{0.60}K{0.40}Mn2As2
Abhishek Pandey, B. G. Ueland, S. Yeninas +9
Magnetization, nuclear magnetic resonance, high-resolution x-ray diffraction and magnetic field-dependent neutron diffraction measurements reveal a novel magnetic ground state of B…
Uniaxial pressure effect on structural and magnetic phase transitions in NaFeAs and its comparison with as-grown and annealed BaFeAs
Yu Song, Scott V. Carr, Xingye Lu +7
We use neutron scattering to study the effect of uniaxial pressure on the tetragonal-to-orthorhombic structural () and paramagnetic-to-antiferromagnetic () phase transiti…
Magnetic neutron diffraction study of Ba(Fe1-xCox)2As2 critical exponents through the tricritical doping
D. M. Pajerowski, C. R. Rotundu, J. W. Lynn +1
We present temperature dependent magnetic neutron diffraction measurements on Ba(FeCo)As for = 0.039, 0.022, and 0.021 as-grown single crystals. Our i…