2021/03/07 by Max Hirschberger, Yoshio Kaneko, Y. Kaneko +5 · 3 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Chemistry #Condensed matter physics #Crystallography #Ferromagnetism #Magnetism #Materials science #Multiferroics and related materials #Nuclear materials and radiation effects #Physics #Pyrochlore #Quantum mechanics #Spins #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.104.024436
published in Physical review. B./Physical review. B 104(2) (American Physical Society) · 22 pages, 9 figures
arxiv created 2021/03/07 · openalex created_date 2021/03/15 · openalex publication_date 2021/07/29 · arxiv updated 2021/08/04 · openalex updated_date 2026/08/06
In the metallic pyrochlore Nd2Mo2O7, the conducting molybdenum sublattice adopts canted, yet nearly collinear, ferromagnetic order with nonzero scalar spin chirality. The chemical potential may be controlled by replacing Nd3+ with Ca2+, while introducing only minimal additional disorder to the conducting states. Here, we demonstrate the stability of the canted ferromagnetic state, including the tilting angle of molybdenum spins, in (Nd_1\ensuremath-xCax)2Mo2O7 with x\ensuremath≤0.15 using magnetic susceptibility measurements. Mo-Mo and Mo-Nd magnetic couplings both change sign above x=0.22, where the canted ferromagnetic state gives way to a spin-glass metallic region. Contributions to the Curie-Weiss law from two magnetic species are separated systematically.