Probing the growth window of LaVO3 perovskites thin films elaborated using magnetron co-sputtering

Enhanced Selective Adsorption of Lanthanum(III) by Dual-Site Polymeric Ion-Imprinted Nanoparticles from Aqueous Media

“…As illustrated in Figure b, the peaks at 533.18 and 531.76 eV in the O 1s spectrum are ascribed to CO and C–O, respectively. After adsorption of La­(III), the binding energies of CO and C–O peaks positively move to 533.28 and 531.92 eV, respectively. , A newly formed peak can be observed at 531.09 eV, which is assigned to the La–O bonds of the coordination complex. , Moreover, we can observe that two asymmetric peaks at binding energies of 852.55 and 835.68 eV with two corresponding satellite peaks (855.28 and 838.15 eV, respectively, and marked as “Sat.”) are collected in the high-resolution La 3d spectrum in Figure c, which are associated to the identified La 3d 3/2 and La 3d 5/2 regions. , Therefore, it confirms that La­(III) is successfully encapsulated inside the networks of IIP-AM. In addition, the high-resolution N 1s spectrum (Figure S7) shows that the C–N peak is detected at 399.36 eV.…”

“…are collected in the high-resolution La 3d spectrum in Figure 6c, which are associated to the identified La 3d 3/2 and La 3d 5/2 regions. 47,48 Therefore, it confirms that La(III) is successfully encapsulated inside the networks of IIP-AM. In addition, the high-resolution N 1s spectrum (Figure S7) shows that the C− N peak is detected at 399.36 eV.…”

Unusual Phase Formation in Reactively Sputter‐Deposited La—Co—O Thin‐Film Libraries

“…Moreover, in general, there are only a few reports on combinatorial approaches for the sputter fabrication and characterization of La‐based perovskite forming systems like La x Ta 1− x O y N z , [ 26 ] LaFeO 3 , and LaFeO 3− x N x [ 27 ] exist. Most studies focused on the fabrication of discrete perovskite compositions or sputtering from a perovskite‐composition target, like reported for LaCoO 3 , [ 28,29 ] La—Cu—O, [ 30 ] La—Ni—O, [ 31,32 ] LaMnO 3 , [ 33 ] La—Pb—Mn—O, [ 34 ] LaVO 3 , [ 35 ] La—Ti—O, [ 36 ] or LaCrO 3 . [ 37 ] Since none of the studies investigated a larger compositional range of the described La—M—O (M = transition metal) systems, no unusual film growth or phase formation behavior such as reported in this work, was observed.…”

Optimizing the role of impact ionization in conventional insulators

“…The proposal was later extended to the more general family of strongly correlated insulators 7 (SCIs) where localized flat bands exist near the Fermi level. Subsequent theoretical 8–12 and experimental 13–26 investigations on oxide perovskite and related materials have shed light on important aspects of this initial theoretical proposal. In particular a pump-probe optical study 16 of the low-temperature phase of VO 2 , a prototypical Mott insulator, shows evidence of IA.…”