Iron telluride ladder compounds: Predicting the structural and magnetic properties of BaFe2Te3
Journal Article
·
· Physical Review B
- Univ. of Tennessee, Knoxville, TN (United States); Southeast Univ., Nanjing (China)
- Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Southeast Univ., Nanjing (China)
Since the discovery of pressure-induced superconductivity in the two-leg ladder system BaFe2X3 (X=S, Se), with the 3d iron electronic density n=6, quasi-one-dimensional iron-based ladders have attracted considerable attention. In this work, we use density-functional theory to predict that the novel n=6 iron ladder BaFe2Se3 could be stable with a similar crystal structure as BaFe2Se3. Furthermore, our results also indicate that BaFe2Te3 will display a complex 2×2 block-type magnetic order. Due to the magnetic striction effects of this block order, BaFe2Te3 should be a magnetic noncollinear ferrielectric system with a net polarization 0.31μC/cm2. In summary, the similar electronic density and magnetic ground state of Te- and Se-based ladders indicates both should display similar properties. In particular, the physical and structural similarity with BaFe2Se3 suggests that BaFe2Se3could become superconducting under high pressure.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- National Natural Science Foundation of China; Scientific Research Foundation of Graduate School of Southeast University; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1649240
- Alternate ID(s):
- OSTI ID: 1618383
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 14 Vol. 101; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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