Title :
Magnetic and structural transitions in helimagnetic YMn2O5
Author :
Lin, J.G. ; Han, T.C.
Author_Institution :
Center for Condensed Matter Sci., Nat. Taiwan Univ., Taiwan
Abstract :
Two ferroelectric YMn2O5 samples with different phases were prepared, one is orthorhombic (OR) and another is hexagonal (HX) structure, for investigating the structure dependency of magnetic properties. The crystal structures and magnetic properties of the samples were examined by X-ray diffraction (XRD) and physical property measurement system, respectively. Based on the results of temperature-dependent magnetization and low temperature magnetic hysteresis curves, the two samples display a spin glass/spin-canted state at low temperature and the hexagonal sample is more ferromagnetic than that of orthorhombic structure.
Keywords :
X-ray diffraction; canted spin arrangements; crystal structure; ferroelectric materials; ferromagnetic materials; magnetic hysteresis; magnetic transitions; spin glasses; yttrium compounds; X-ray diffraction; YMn2O5; crystal structures; ferroelectric samples; ferromagnetic structure; helimagnetic materials; hexagonal structure; low temperature magnetic hysteresis; magnetic transitions; orthorhombic structure; physical property measurement system; spin glass; spin-canted state; structural transitions; temperature-dependent magnetization; Crystallization; Ferroelectric materials; Magnetic field measurement; Magnetic hysteresis; Magnetic materials; Magnetic properties; Powders; Solid state circuits; Temperature dependence; X-ray scattering;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464495
