The Orbital Order Parameter in La0.95Sr0.05MnO3 probed by Electron Spin Resonance
Abstract
The temperature dependence of the electron-spin resonance linewidth in La0.95Sr0.05MnO3 has been determined and analyzed in the paramagnetic regime across the orbital ordering transition. From the temperature dependence and the anisotropy of linewidth and g-value the orbital order can be unambiguously determined via the mixing angle of the wave functions of the e g-doublet. The linewidth shows a similar evolution with temperature as resonant x-ray scattering results.
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