Abstract
Mn concentration of 6H-Ba3Ti2MnO9 was adjusted slightly to deviate from stoichiometric ratios. Our structural analysis shows that the spin dimer may form with Mn concentration slightly higher than stoichiometric. The magnetic properties are explored by combining DC magnetization and X-band (9.4 GHz) electron spin resonance (ESR). DC magnetization shows the signature of combination of frustrated spin and short-range spin. ESR shows that spin dimer can be formed in BaTi0.65Mn0.35O3, while no signature of spin dimer can be found in BaTi0.69Mn0.31O3 and Ba3Ti2MnO9.
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Acknowledgments
We would like to thank Prof. Guien Zhou and Dr. Shang Gao for valuable discussions and technical help for the measurements. This study was supported by the National Natural Science Foundation of China (51673103) and the Postdoctoral Scientific Research Foundation of Qingdao (2016014).
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Song, W., Yu, J., Song, C. et al. Spin Dimer Formation in BaTi0.67−xMn0.33 + xO3 (x = - 0.02, - 0.01, 0, 0.01, and 0.02). J Supercond Nov Magn 32, 1389–1393 (2019). https://doi.org/10.1007/s10948-018-4806-5
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DOI: https://doi.org/10.1007/s10948-018-4806-5