Microscopic Magnetic Nature of the Quasi-one-Dimensional Antiferromagnet BaCo2V2O8

Details Microscopic Magnetic Nature of the Quasi-one-Dimensional Antiferromagnet BaCo2V2O8 Microscopic Magnetic Nature of the Quasi-one-Dimensional Antiferromagnet BaCo2V2O8

2011-10-10

arxiv.org/abs/1110.2068v1

Physics

Condensed Matter

Strongly Correlated Electrons

Submitted to Physics Procedia (muSR2011 conference)

Scientific paper

The title compound belongs to a wide group of quasi-one-dimensional (Q1D) antiferromagnets (AF) and its Co2+ ions form Q1D screw-chains along the c-axis. We here present the first investigation of the microscopic magnetic nature of a single crystalline BaCo2V2O8 sample using {\mu}+SR. Our data reveal the presence of several clear muon frequencies below TN indicating the onset of a long-range order. Above 5 K, the {\mu}+SR spectra is well fitted to a simple power-exponential relaxing function. The temperature dependence of the relaxation-rate ({\lambda}) as well as the power (n) display a clear anomaly around T = 44 K, indicating the onset of short-range 1D correlations.

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