Ordered states of Jahn-Teller distorted MnO6 octahedra in weakly doped lanthanum-strontium manganites

Strain-Engineered Ferromagnetism in LaMnO3 Thin Films

“…Furthermore, the presence of twinned microstructures would make it almost impossible to reach any solid conclusion about selective orbital occupancy from XLD measurements. Nevertheless, our results showed that the possible orbital and magnetic arrangements and the role of cooperative Jahn–Teller distortions in the parent compound LaMnO 3 and other reported FMI phases as, for example, low-doped La 1– x Sr x MnO 3 deserve further attention. , …”

The role of Jahn–Teller ions in the creation of domain structures in lithium niobate

“…2), also had the time characteristics of the growth as photoinduced fields, and the values of the relative deformations ∂U Z /∂Z ≈ d 33 E ph (Z), where d 33 is the piezoelectric coefficient (d 33 = 0.6 × 10 -11 C N -1 . It is logical to compare the effect of the cooperative ordering of Jahn-Teller Mn 3+ ions in the manganites studied in [9], which was accompanied by the macrocopic deformation of sam ples, to the similar deformation of LiNbO 3 :Fe sam ples. For lithium niobate, the near doubling of the concentration of Fe 2+ ions at the boundary of laser irradiation under conditions of easy polarizability leads to macroscopic stretching deformation along the Z axis of polarization.…”

Impact of Alkali Ions Codoping on Magnetic Properties of La0.9A0.1Mn0.9Co0.1O3 (A: Li, K, Na) Powders and Ceramics

“…The research conducted in the last two decades showed that the nature of colossal magnetoresistance effect (CMR) [3][4][5][6][7][8][9] in lanthanum manganates cannot be explained without invoking the mechanism of the Jahn-Teller distortion of MnO 6 octahedra. The effect of distortions on magnetic interactions and electron transfer can be induced by structural stresses which are lessened by MnO 6 array oxidation and by the doping the structure by ions with different ionic radii [10][11][12].…”