Magnetic Anisotropy in La 0.8 Sr 0.2 Mno 3 : Electron Spin Resonance *
نویسندگان
چکیده
We report on Ferromagnetic-Resonance experiments in a single crystal of La 0.8 Sr 0.2 MnO 3 in the temperature range from 4 to 300 K. The observed anisotropy of the resonance line changes on crossing the transition from the orthorhombic O-phase to the rhombohedral R-phase at T ≈ 100 K and indicates a reorientation of the spins at about 130 K.
منابع مشابه
6 A ug 1 99 9 ESR study in lightly doped La 1 − x Sr x MnO
We present a systematic electron-spin-resonance (ESR) study in single crystals of La1−xSrxMnO3 (0≤ x ≤ 0.2). The temperature dependence of the ESR linewidth marks all significant transitions between both orthorhombic (Ó,O) and the rhombohedral (R) structural phases of the T − x phase diagram. All significant peculiarities of the ESR spectra for low x values (x ≤ 0.125) can be attributed to the ...
متن کاملLa(0.8)Sr(0.2)MnO(3-δ) decorated with Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-δ): a bifunctional surface for oxygen electrocatalysis with enhanced stability and activity.
Developing highly active and stable catalysts based on earth-abundant elements for oxygen electrocatalysis is critical to enable efficient energy storage and conversion. In this work, we took advantage of the high intrinsic oxygen reduction reaction (ORR) activity of La(0.8)Sr(0.2)MnO(3-δ) (LSMO) and the high intrinsic oxygen evolution reaction (OER) activity of Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-...
متن کاملArtificial Construction of the Layered Ruddlesden–Popper Manganite La2Sr2Mn3O10 by Reflection High Energy Electron Diffraction Monitored Pulsed Laser Deposition
Pulsed laser deposition has been used to artificially construct the n = 3 Ruddlesden-Popper structure La(2)Sr(2)Mn(3)O(10) in epitaxial thin film form by sequentially layering La(1-x)Sr(x)MnO(3) and SrO unit cells aided by in situ reflection high energy electron diffraction monitoring. The interval deposition technique was used to promote two-dimensional SrO growth. X-ray diffraction and cross-...
متن کاملElectron paramagnetic resonance investigation of the electron-doped manganite La(1-x)Te(x)MnO3 (0.1 ≤ x ≤ 0.2).
The electron paramagnetic resonance (EPR) properties of the electron-doped manganite La(1-x)Te(x)MnO(3) (0.1 ≤ x ≤ 0.2) are investigated based on the data of EPR spectra, resistivity, and magnetic susceptibility. With decreasing temperature from 400 K, the EPR linewidth ΔH(PP) decreases and passes through a minimum at T(min), then substantially increases with further decreasing temperature. The...
متن کاملElectroresistance and electronic phase separation in mixed-valent manganites.
The sensitivity of transport in colossal magnetoresistance (CMR) manganites to external electric and magnetic fields is examined using field effect configurations with La(0.7)Ca(0.3)MnO(3) (LCMO), Na(0.7)Sr(0.3)MnO(3), La(0.7)Ba(0.3)MnO(3), and La(0.5)Ca(0.5)MnO(3) (0.5-doped LCMO) channels, and ferroelectric PbZr(0.2)Ti(0.8)O(3) (PZT) or dielectric (SrTiO(3)) gates. A large electroresistance (...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2002