Details

Autor(en) / Beteiligte

• He, Li-Min
• Ji, Yu
• Wu, Hong-Ye
• Xu, Bao
• Sun, Yun-Bin
• Zhang, Xue-Feng
• Lu, Yi
• Zhao, Jian-Jun

Titel

An electron spin resonance study of Eu doping effect in La sub(4)/3Sr sub(5/3)Mn sub(2)O sub(7) single crystal

Ist Teil von

• Chinese physics B, 2014-07, Vol.23 (7), p.077601-1-077601-3

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The effect of Eu super(3+) ion doping in the La sites of single-crystal La sub(4/3)Sr sub(5/3)Mn sub(2)O sub(7) was investigated. Electron spin resonance (ESR) was applied to La sub(4/3)Sr sub(5/3)Mn sub(2)O sub(7) and (La sub(0.8)Eu sub(0.2)) sub(4/3)Sr sub(5/3)Mn sub(2)O sub(7) single crystals. A phase separation and phase transitions were observed from the ESR spectra data. Between 350 K and 300 K, both paramagnetic resonance (PMR) and anisotropic ferromagnetic resonance (FMR) lines were observed in the ab plane and the c axis direction, suggesting a coexistence of the paramagnetic (PM) phase and the ferromagnetic (EM) phase. The magnetization measurement reveals a spin-glass-like behavior in single-crystal (La sub(0.8)Eu sub(0.2)) sub(4/3) Sr sub(5/3)Mn sub(2)O sub(7 ) below the temperature of spin freezing T sub(f)(~ 29.5 K).