Electrical transport in charge-ordered Fe2BO4: Resistive switching and pressure effects

Akrap, A.; Sales, B.C.; Forro, L.; Angst, M.; Khalifah, P.; Mandrus, D.

doi:10.1103/PhysRevB.82.165106

Journal Article

PreJuSER-11616

Electrical transport in charge-ordered Fe2BO4: Resistive switching and pressure effects

Akrap, A. ; Angst, M.FZJ* ; Khalifah, P. ; Mandrus, D. ; Sales, B. C. ; Forro, L.

2010
APS College Park, Md.

Physical review / B 82(16), 165106 (2010) [10.1103/PhysRevB.82.165106]

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Please use a persistent id in citations: http://hdl.handle.net/2128/10972 doi:10.1103/PhysRevB.82.165106

Abstract: The pressure-temperature-electric field phase diagram of Fe2OBO3 is studied under ambient and high pressure using resistivity and thermoelectric power measurements. The onset of the incommensurate charge order at T-CO=340 K does not depend on pressure up to at least 2 GPa. The temperature of the transition to the commensurate charge order is increased by similar to 10 K/GPa. High pressure stabilizes the commensurate phase. We find evidence for resistive switching in the incommensurate phase, which may be linked to the dynamics of the charge-order domain boundaries.

Keyword(s): J

Classification:

Physics, Condensed Matter

Note: The authors acknowledge financial support from the Swiss National Science Foundation and its NCCR MaNEP. Part of research was sponsored by Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy. M.A. acknowledges the Initiative and Networking Fund of the Helmholtz Association of German Research Centers for financial support of the Helmholtz-University Young Investigator Group Complex Ordering Phenomena in Multifunctional Oxides.

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Appears in the scientific report 2010

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