High-field AFMR in single-crystalline La_{0.95}Sr_{0.05}MnO_3: Experimental evidence for the existence of a canted magnetic structure

Abstract

High-field antiferromagnetic-resonance (AFMR) spectra were obtained in the frequency range 60 GHz < ν< 700 GHz and for magnetic fields up to 8 T in twin-free single crystals of La_{0.95}Sr_{0.05}MnO_3. At low temperatures two antiferromagnetic modes were detected, which reveal different excitation conditions and magnetic field dependencies. No splitting of these modes was observed for any orientation of the static magnetic field excluding the phase-separation scenario for this composition. Instead, the full data set including the anisotropic magnetization can be well described using a two-sublattice model of a canted antiferromagnetic structure.

4 pages, 3 figures

References in corpus (3)

• Liquid-like spatial distribution of magnetic polarons revealed by neutron scattering in La{1-x}Ca{x}MnO3
• Phase Separation Induced by Orbital Degrees of Freedom in Models for Manganites with Jahn-Teller Phonons
• Evidence of anisotropic magnetic polarons in la${}_{0.94}$Sr${}_{0.06}$MnO${}_3$ by neutron scattering and comparison with Ca-doped manganites

Cited by in corpus (4)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Crystal Field and Dzyaloshinsky-Moriya Interaction in orbitally ordered La_{0.95}Sr_{0.05}MnO_3: An ESR Study
• Spin dynamics in La_{1-x}Sr_{x}MnO_{3} (x \le 0.175) investigated by high-field ESR spectroscopy
• The Orbital Order Parameter in La0.95Sr0.05MnO3 probed by Electron Spin Resonance