Electronic and Magnetic Properties of Stoichiometric CeAuBi2

Published

June 18, 2020

Author(s)

M. M. Piva, R. Tartaglia, G. S. Freitas, J. C. Souza, D. S. Christovam, S. M. Thomas, Juscelino Leao, William D. Ratcliff, Jeffrey W. Lynn, C. Lane, J.-X Zhu, J. D. Thompson, P. F. S. Rosa, C. Adriano, E. Granado, P. G. Pagliuso

Abstract

We report the electronic and magnetic properties of stoichiometric CeAuBi₂ single crystals. At ambient pressure, CeAuBi₂ orders antiferromagnetically below a Neel temperature (T_N ) of 19 K. Neutron diffraction experiments revealed an antiferromagnetic propagation vector ˆτ = [0, 0, 1/2], which doubles the paramagnetic unit cell along the c-axis. At low temperatures several metamagnetic transitions are induced by the application of fields parallel to the c-axis, suggesting that the magnetic structure of CeAuBi₂ changes as a function of field. At low temperatures, a linear positive magnetoresistance may indicate the presence of band crossings near the Fermi level. Finally, the application of external pressure favors the antiferromagnetic state, indicating that the 4f electrons are localized.

Citation

Physical Review B

Volume

101

Issue

21

Pub Type

Journals

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Keywords

CeAuBi2, Antiferromagnetic Order, neutron diffraction, transport properties, field dependence, pressure dependence

Citation

Piva, M. , Tartaglia, R. , Freitas, G. , Souza, J. , Christovam, D. , Thomas, S. , Leao, J. , Ratcliff, W. , Lynn, J. , Lane, C. , Zhu, J. , Thompson, J. , Rosa, P. , Adriano, C. , Granado, E. and Pagliuso, P. (2020), Electronic and Magnetic Properties of Stoichiometric CeAuBi₂, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=930278 (Accessed April 25, 2024)