Electrical transport in charge-ordered Fe2OBO3: Resistive switching and pressure effects

被引：12

作者：

Akrap, Ana ^{[1
,2
]}

Angst, Manuel ^{[3
,4
,5
]}

Khalifah, Peter ^{[6
]}

Mandrus, David ^{[3
,7
,8
]}

Sales, Brian C. ^{[3
]}

Forro, Laszlo ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Phys Mat Complexe, CH-1015 Lausanne, Switzerland

[2] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA

[3] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[4] Forschungszentrum Julich GmbH, Inst Festkorperforsch, JCNS, D-52425 Julich, Germany

[5] Forschungszentrum Julich GmbH, JARA FIT, D-52425 Julich, Germany

[6] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

[7] Univ Tennessee, Dept Mat Sci, Knoxville, TN 37996 USA

[8] Univ Tennessee, Div Technol, Knoxville, TN 37996 USA

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 16期

基金：

瑞士国家科学基金会;

关键词：

DRIVEN PHASE-TRANSITION; DENSITY-WAVE; MANGANITES; SOLIDS;

D O I：

10.1103/PhysRevB.82.165106

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：7

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