Unconventional Metallic Magnetism in LaCrSb{3}
E. Granado, H. Martinho, M.S. Sercheli, P.G. Pagliuso, D.D. Jackson,, M. Torelli, J.W. Lynn, C. Rettori, Z. Fisk, and S.B. Oseroff
TL;DR
This study reveals that LaCrSb3 exhibits unconventional metallic magnetism with coexisting ferromagnetic and antiferromagnetic orderings, a spin reorientation transition, and indications of both localized and itinerant spins, challenging traditional magnetic models.
Contribution
The paper provides the first neutron diffraction evidence of coexisting ferromagnetic and antiferromagnetic sublattices in LaCrSb3, highlighting its unconventional metallic magnetic behavior.
Findings
Coexistence of ferromagnetic and antiferromagnetic sublattices below 126 K
Spin reorientation transition around 95 K
No clear specific heat anomaly at Tc
Abstract
Neutron-diffraction measurements in LaCrSb{3} show a coexistence of ferromagnetic and antiferromagnetic sublattices below Tc=126 K, with ordered moments of 1.65(4) and 0.49(4) Bohr magnetons per formula unit, respectively (T=10 K), and a spin reorientation transition at ~95 K. No clear peak or step was observed in the specific heat at Tc. Coexisting localized and itinerant spins are suggested.
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