2007/07/06 by Pallavi Kushwaha, R. Rawat, R Rawat +2 · 3 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Annealing (glass) #Antiferromagnetism #Chemistry #Condensed matter physics #Ferrimagnetism #Ferromagnetism #Kinetic energy #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetization #Materials science #Metallurgy #Metastability #Phase transition #Physics #Supercooling #Superheating #Theoretical and Computational Physics #Thermodynamics #Thermomagnetic convection #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/20/02/022204
published as J. Phys.: Condens. Matter 20 (2008) 022204. · 10 pages, 8 figures
arxiv created 2007/07/06 · openalex publication_date 2007/12/13 · arxiv updated 2009/12/01 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05
A detailed investigation of the first-order ferrimagnetic (FRI) to antiferromagnetic (AFM) transition in Mn 1.85 Co 0.15 Sb is carried out. These measurements demonstrate anomalous thermomagnetic irreversibility and a glass-like frozen FRI phase at low temperatures. The irreversibility arising between the supercooling and superheating spinodals is distinguished in an ingenious way from the irreversibility arising due to kinetic arrest. Field annealing measurements show a re-entrant FRI–AFM–FRI transition with increasing temperature. In this system the kinetic arrest band and supercooling band are also shown to be anticorrelated (i.e. the regions which are kinetically arrested at higher temperature have lower supercooling temperature and vice versa), which has been a universal feature of the AFM/ferromagnetic transition so far.