EPR of Nd3+ Ions in the Common Position in a Cubic Single Crystal KZnF3

Aging-Resistant Behavior and Room Temperature Electron Spin Resonance of Nd3+ in Singly and Doubly Doped BaTiO3 Ceramics Associated with Preservation History

“…Possenriede et al and Falin et al gave g = ~2.5 for Nd 3+ in BaTiO 3 [16] and a mean g value of 2.509 for Nd 3+ in KZnO 3 perovskite [28], respectively, which are very analogous to our g value ( g = 2.338) in BN4T-2. In particular, Asatryan and Rosa gave the g tensors g x = 2.83, g y = 2.58, and g z = 1.69 at f = 9.24 GHz for Nd 3+ in YAlO 3 single crystals [28], and the mean g factor < g > = ( g x + g y + g z )/3 = 2.37, which agrees quite well with the value of the g factor obtained for Nd 3+ in BN4T-2. Thus, the broader signal at g = 2.338 should originate from a superposition effect of all g tensors of Nd 3+ in the tetragonal BN4T-2 grains.…”

“…It is well known that the ESR of Nd 3+ in BaTiO 3 crystals can be observed only in the rhombohedral phase of BaTiO 3 at low temperatures (e.g., T = 7 K) [16] and in other host crystals can also be detected at low temperatures (e.g., T ≤ 20 K) using the X-band frequency [25,26,27,28,29]. Neodymium has six stable isotopes; two of them, 145 Nd 3+ and 143 Nd 3+ (8.3 and 12.17% of nature abundance, I = 7/2), are odd isotopes with a non-zero magnetic moment.…”