Incommensurate magnetic structure in the orthorhombic perovskite ErMnO₃

Journal Article · Wed Aug 01 00:00:00 EDT 2007 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.76.060402· OSTI ID:938767

Ye, Feng ^[1]; Huang, Q ^[2]; Wang, Y -Q ^[3]; Sun, Y Y ^[3]; Chu, C W ^[3]; Fernandez-Baca, Jaime A ^[1]; Dai, Pengcheng ^[1]; Mook, Jr, Herbert A ^[1]

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1. ORNL
2. National Institute of Standards and Technology (NIST)
3. University of Houston, Houston

By combining dielectric, specific heat, and magnetization measurements and high-resolution neutron powder diffraction, we have investigated the thermodynamic and magnetic and structural properties of the metastable orthorhombic perovskite ErMnO{sub 3} prepared by high-pressure synthesis. The system becomes antiferromagnetically correlated below 42 K and undergoes a lock-in transition at 28 K with propagation wave vector (0,k{sub b},0), which remains incommensurate at low temperature. The intercorrelation between the magnetic structure and electric properties and the role of the rare earth moment are discussed.

• Research Organization: Oak Ridge National Laboratory (ORNL); High Flux Isotope Reactor
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 938767
• Journal Information: Physical Review B, Journal Name: Physical Review B Journal Issue: 6 Vol. 76
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DIFFRACTION
ELECTRICAL PROPERTIES
MAGNETIZATION
NEUTRONS
PEROVSKITE
RARE EARTHS
SPECIFIC HEAT
SYNTHESIS
THERMODYNAMICS
VECTORS