Showing papers on "Metamagnetism published in 1972"
TL;DR: Magnetic properties of neptunium(V) oxalate, (NpO2)2C2O4·4H2O, were studied from 2.4 to 37.5°K with magnetic-susceptibility measurements using a vibrating-sample magnetometer at applied fields of 50−10 000 Oe; Mossbauer spectra of the 59.54−keV γ ray in 237Np were taken from 4.2 to 80°K.
Abstract: Magnetic properties of neptunium(V) oxalate, (NpO2)2C2O4·4H2O, were studied from 2.4 to 37.5°K with magnetic‐susceptibility measurements using a vibrating‐sample magnetometer at applied fields of 50–10 000 Oe; Mossbauer spectra of the 59.54−keV γ ray in 237Np were taken from 4.2 to 80°K. A metamagnetic transition was found at 11.6°K. Below 11.6°K the magnetization isotherms had the characteristic S shape of metamagnets. Below 8°K a pronounced hysteresis was observed as the field was reduced from saturation. At 3.15°K the remanent magnetization at 100 Oe was 96% of the saturation magnetization at 10 000 Oe, and 125 times greater than the magnetization in the low‐moment state. The Mossbauer spectra exhibited magnetic hyperfine splitting which was independent of temperature, with g0μnHeff = 10 cm/sec; splitting above the transition temperature is attributed to a long paramagnetic relaxation time.
23 citations
15 citations
TL;DR: ErCo2−30 mole % ErAl2 (MgZn2 type structure) shows discontinuous increases of magnetization with field at 4.2 K as mentioned in this paper, which points at the presence of unusual (possibly very thin) domain walls.
15 citations
5 citations