Layered transition-metal pnictide SrMnBi2 with metallic blocking layer
Jiakui K. Wang, Liang L. Zhao, Quan Yin, G. Kotliar, M. S. Kim, M. C. Aronson, E. Morosan
DOI 10.1103/PhysRevB.84.064428 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
The physical properties and the band structure of the layered pnictide SrMnBi2 were investigated. This compound has a crystal structure similar to that of the superconducting Fe pnictides, and is a bad metal with large residual resistivity. Magnetic order sets in at very high temperatures, around 290 K, as shown by magnetization, resistivity, and specific heat data. Band structure calculations using density functional theory (DFT) are consistent with the thermodynamic and transport measurements, suggesting a checkerboard antiferromagnetic (cAFM) ground state and a localized picture for the magnetism. Moreover, DFT results indicate that the Mn 3d electrons are strongly correlated, and that, unlike in the known superconductors, the Sr-Bi(1) layer is metallic. One more notable feature of the DFT calculation is the multiple Dirac-cone-like dispersion close to the Fermi level.
Similar papers
Electron correlations and charge segregation in layered manganese pnictide antiferromagnets showing anomalously large magnetoresistance
similarity 0.88N. Janša et al.
Source status unknown — claims are unverified
Robust antiferromagnetism preventing superconductivity in pressurized Ba0.61K0.39Mn2Bi2
similarity 0.87Dachun Gu et al. · 2014 · arXiv:1404.5030
Source status unknown — claims are unverified
Superconductivity and Dirac Fermions in 112-phase Pnictides
similarity 0.87S. J. Ray & L. Alff · 2017 · arXiv:1701.02700
Source status unknown — claims are unverified
Electronic and structural properties of low-temperature superconductors and ternary pnictides ANi2Pn2 (A=Sr,Ba and Pn=P,As)
similarity 0.86I. R. Shein & A. L. Ivanovskii
Source status unknown — claims are unverified
Spindynamics in the antiferromagnetic phases of the Dirac metals MnBi ( Sr, Ca)
similarity 0.86Marein C. Rahn et al. · 2017 · arXiv:1703.01849
Source status unknown — claims are unverified
Coexistence of antiferromagnetism and superconductivity in Mn/Nb(110)
similarity 0.86Roberto Lo Conte et al.
Source status unknown — claims are unverified