2015/05/19 by Rui Koborinai, R. Koborinai, Sachith Dissanayake +9
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Cobalt #Condensed matter physics #Dielectric #Diffraction #Ferrimagnetism #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetization #Materials science #Metal #Multiferroics and related materials #Neutron #Neutron diffraction #Nuclear magnetic resonance #Nuclear physics #Optics #Physics #Relaxation (psychology) #Spinel #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.116.037201
published as Phys. Rev. Lett. 116, 037201 (2016) · 5 pages, 4 figures
arxiv created 2015/05/19 · openalex publication_date 2016/01/19 · arxiv updated 2016/01/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Strain, magnetization, dielectric relaxation, and unpolarized and polarized neutron diffraction measurements were performed to study the magnetic and structural properties of spinel Co1-xV2+xO4. The strain measurement indicates that, upon cooling, ΔL/L in the order of ∼10-4 starts increasing below TC, becomes maximum at Tmax, and then decreases and changes its sign at T*. Neutron measurements indicate that a collinear ferrimagnetic order develops below TC and upon further cooling noncollinear ferrimagnetic ordering occurs below Tmax. At low temperatures, the dielectric constant exhibits a frequency dependence, indicating slow dynamics. These results indicate the existence of an orbital glassy state at low temperatures in this nearly metallic frustrated magnet.