Figure 3

Magnetic properties of NGO measured by SQUID.

(a) Typical M − H curve measured at 2 K. Inset is a part of the magnetization curve. (b) M − T curve of NGO measured from 2 to 300 K under the applied field H = 500 Oe. (c) M − H curves of NGO measured at 80 and 110 K. Inset is a part of the magnetization curves.