Jahn-Teller dynamics in charge-ordered manganites from Raman spectroscopy
The Raman spectra of the charge-ordered manganite Pr 0.65 Ca 0.35 MnO 3 were studied
as functions of temperature and excitation energy and compared to magnetic moment and …
as functions of temperature and excitation energy and compared to magnetic moment and …
Temperature-dependent electron paramagnetic resonance studies of charge-ordered
We report electron paramagnetic resonance measurements on single crystalline and
powder samples of Nd 0.5 Ca 0.5 MnO 3 across the charge-ordering transition at T co= 240 …
powder samples of Nd 0.5 Ca 0.5 MnO 3 across the charge-ordering transition at T co= 240 …
Magnetic excitations in charge-ordered Nd0. 5Ca0. 5MnO3: A Brillouin scattering study
Brillouin scattering studies on single crystals of a charge-ordered manganite, Nd 0.5 Ca 0.5
MnO 3, have been carried out for the first time. The spectra show two modes at (B-mode) …
MnO 3, have been carried out for the first time. The spectra show two modes at (B-mode) …
Raman spectroscopy of the charge- and orbital-ordered state in
Polarized Raman spectra from microcrystals of La 0.5 Ca 0.5 MnO 3 were studied as a
function of temperature, excitation photon energy, and scattering configuration. At …
function of temperature, excitation photon energy, and scattering configuration. At …
Raman scattering in charge-ordered Pr0. 63Ca0. 37MnO3: Anomalous temperature dependence of linewidth
We report on the evolution of the Raman-active A g phonon modes in the charge-ordered
manganite Pr 0.63 Ca 0.37 MnO 3 as a function of temperature from 300 K to 25 K. Our …
manganite Pr 0.63 Ca 0.37 MnO 3 as a function of temperature from 300 K to 25 K. Our …
Evolution of charge ordering in manganites
M Hervieu, A Barnabé, C Martin, A Maignan… - The European Physical …, 1999 - Springer
Charge ordering phenomena in the manganites Ca 1-x Sm x MnO 3 have been studied for,
using electron diffraction and lattice imaging, completed by magnetic and transport …
using electron diffraction and lattice imaging, completed by magnetic and transport …
Role of Jahn-Teller disorder in Raman scattering of mixed-valence manganites
The mixed-valence perovskitelike manganites are characterized by the unique interrelation
of Jahn-Teller distortions, electric and magnetic properties. The Jahn-Teller distortion follows …
of Jahn-Teller distortions, electric and magnetic properties. The Jahn-Teller distortion follows …
Charge, orbital, and magnetic order in
F Millange, S De Brion, G Chouteau - Physical Review B, 2000 - APS
Abstract In the manganite Nd 0.5 Ca 0.5 MnO 3, charge ordering occurs at a much higher
temperature than the antiferromagnetic order (T CO= 250 K, TN= 160 K). The magnetic …
temperature than the antiferromagnetic order (T CO= 250 K, TN= 160 K). The magnetic …
Charge ordering in doped manganese oxides: Lattice dynamics and magnetic structure
JD Lee, BI Min - Physical Review B, 1997 - APS
Based on the Hamiltonian of small polarons with strong nearest-neighbor repulsion, we
have investigated the charge-ordering phenomena observed in half-doped manganites R …
have investigated the charge-ordering phenomena observed in half-doped manganites R …
Infrared absorption from charge density waves in magnetic manganites
The infrared absorption of charge density waves coupled to a magnetic background is first
observed in two manganites La 1− x Ca x MnO 3 with x= 0.5 and x= 0.67. In both cases a …
observed in two manganites La 1− x Ca x MnO 3 with x= 0.5 and x= 0.67. In both cases a …