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Iron based high temperature superconductors

The discovery of iron pnictide superconductors with high transition temperature has attracted extensive interest on their physical properties and thereby the physical mechanism of high-temperature superconductors.

It is believed that the superconducting current is carried in common layers of iron tetrahedrally coordinated by pnictides or chalcogenides, similar to the copper oxide planes in the cuprate family. In last few years, an impressive amount of information has been collected on these new families of superconductors.

However, accompanied with the discovery of new superconducting system and the observation of new phenomena, many open questions remain for a solid understanding of the physics of the iron pnictide superconductors.

  • Phonon dynamics in novel self-doped superconductor Ba2Ti2Fe2As4O studied by inelastic neutron scattering
  • Coexistence of superconductivity and ferromagnetism in P-doped EuFe2As2
  • Field-induced spin reorientation and giant spin-lattice coupling in EuFe2As2
  • Magnetic structure of EuFe2As2 determined by single-crystal neutron diffraction
  • Phase diagram of Eu(Fe1-xCox)2As2 single crystals
  • Hydrostatic pressure effects on the static magnetism in Eu(Fe0.925Co0.075)2As2
  • Magnetic polarization of Ir in underdoped non-superconducting Eu(Fe0.94Ir0.06)2As2
  • Inelastic neutron scattering study of crystal field excitations of Nd3+ in NdFeAsO
  • Magnetic anisotropic energy gap and low-energy spin wave excitation in the antiferromagnetic block phase of K2Fe4Se5
  • Magnetization distribution and orbital moment in the nonsuperconducting chalcogenide compound K2Fe4Se5

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