EPR of Nd3+ and Er3+ ions in aluminum borates YAl3(BO3)4 and EuAl3(BO3)4

Comparison of EPR spectra of the Gd3+ ion‐doped YAl3(BO3)4, EuAl3(BO3)4, and TmAl3(BO3)4 single crystals

“…In the works it was shown that the Gd 3+ ion replaces Y 3+ and Eu 3+ ions in the YAl 3 (BO 3 ) 4 and EuAl 3 (BO 3 ) 4 crystals. In the present work, the angular dependence of the EPR spectrum of Gd 3+ ion in the TmAl 3 (BO 3 ) 4 crystal was measured in two planes.…”

“…The optical spectrum of RE ions and crystal‐field analysis of aluminum borates have been reported . A number of previously publications cover investigations of EPR spectra both of ions of the iron chemical group and rare‐earth ions .…”

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

“…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.…”

“…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. At low temperatures, Nd 3+ in BaTiO 3 [16] or in other hosts [25,26,27] creates 17 ESR lines: one strong line caused by all non-magnetic isotopes with I = 0 and two hyperfine octets by 145 Nd 3+ and 143 Nd 3+ [25,26,27], as shown in Figure 5a. For Nd-doped BaTiO 3 crystals, this signal is comparatively weak; at T ≥ 10 K, the spectrum of Nd 3+ vanishes [16].…”

EPR study of the ground state of Mn2+impurity ions in alumoboratesMAl3(BO3)4(M= Y, Eu, Tm)

“…A series of works is dedicated to study of the EPR spectra in aluminum borates of Сr 3+ [10][11][12] and Ti 3+ [13] ions. Among the rare-earth ions series, the EPR spectra of Ce 3+ , Er 3+ and Yb 3+ [14], Gd 3+ [15] and Nd 3+ [16] ions were studied. The EPR spectrum of manganese ion was studied in [17].…”