Evolution of two-step structural phase transition in Fe1+dTe detected by low-temperature x-ray diffraction

Abstract

The low-temperature crystal structure of Fe1.13Te, which exhibits an anomalous two-step magnetic transition, was clarified by the systematic x-ray diffraction measurements. It was found that two-step structural phase transition, tetragonal-orthorhombic-monoclinic, occurred correspondingly to the two-step magnetic transition. The detailed analysis of the profile at 5 K indicated the coexistence of the minor orthorhombic area inside the major monoclinic lattice, which could explain the lower-shift (suppression) of the antiferromagnetic transition temperature in Fe1.13Te and suggest a possibility of superconductivity at the domain boundary.

12 pages, 3 figures

References in corpus (13)

• Interface induced high temperature superconductivity in single unit-cell FeSe films on SrTiO3
• Superconductivity at 36 K in beta-Fe1.01Se with the compression of the interlayer separation under pressure
• Superconductivity at 27 K in tetragonal FeSe under high pressure
• Superconductivity close to magnetic instability in Fe(Se1-xTex)0.82
• Tellurium substitution effect on superconductivity of the alpha-phase Iron Selenide
• Incommensurate magnetic order in the alpha-Fe(Te,Se) superconductor systems
• Substitution Effects on FeSe Superconductor
• A review of Fe-chalcogenide superconductors: the simplest Fe-based superconductor
• Superconductivity in S-substituted FeTe
• FeTe as a candidate material for new iron-based superconductor
• First-order structural transition in the magnetically ordered phase of Fe1.13Te
• Successive phase transitions under high pressure in FeTe0.92
• Superconductivity in oxygen-annealed FeTe1-xSx single crystal

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