原子与分子物理学报
原子與分子物理學報
원자여분자물이학보
CHINESE JOURNAL OF ATOMIC AND MOLECULAR PHYSICS
2009年
6期
1161-1165
,共5页
钱霞%牟娟%孙桂芳%阮树仁%盛淑芳
錢霞%牟娟%孫桂芳%阮樹仁%盛淑芳
전하%모연%손계방%원수인%성숙방
石鳖齿舌%磁各向异性%磁化过程
石鱉齒舌%磁各嚮異性%磁化過程
석별치설%자각향이성%자화과정
radula of chiton%magnetic anisotropy%magnetization course
SQUID和磁转矩测量表明红条毛肤石鳖齿舌牙齿内纳米磁性矿物质具有明显的磁各向异性,从能量角度对SQUID和磁转矩曲线的分析发现,这些材料具有明显的单晶单轴特性,对于磁各向异性,起作用的主要是磁晶各向异性.磁化过程中,长条片状纳米磁性矿物质中包含的小纳米晶粒磁畴磁矩转向外磁场方向,直到与外磁场方向一致,达到饱和为止,磁化过程中不存在畴壁的移动.
SQUID和磁轉矩測量錶明紅條毛膚石鱉齒舌牙齒內納米磁性礦物質具有明顯的磁各嚮異性,從能量角度對SQUID和磁轉矩麯線的分析髮現,這些材料具有明顯的單晶單軸特性,對于磁各嚮異性,起作用的主要是磁晶各嚮異性.磁化過程中,長條片狀納米磁性礦物質中包含的小納米晶粒磁疇磁矩轉嚮外磁場方嚮,直到與外磁場方嚮一緻,達到飽和為止,磁化過程中不存在疇壁的移動.
SQUID화자전구측량표명홍조모부석별치설아치내납미자성광물질구유명현적자각향이성,종능량각도대SQUID화자전구곡선적분석발현,저사재료구유명현적단정단축특성,대우자각향이성,기작용적주요시자정각향이성.자화과정중,장조편상납미자성광물질중포함적소납미정립자주자구전향외자장방향,직도여외자장방향일치,체도포화위지,자화과정중불존재주벽적이동.
Magnetic anisotropy is represented obviously in the measurement of nano-magnetic materials of the major radula teeth of chiton acanthochton rubrolinestus LISCHKE by SQUID and magnetic torque-meter. Measurement curves by SQUID and magnetic torque-meter are analyzed from the point view of energy. The results show that these materials have characteristic of single crystal and single axes, and the characteristic of magnetic anisotropy is mainly contributed by crystal magnetic anisotropy. Magnetization course is that magnetic direction of single little magnetic particles turn to the direction of the outside magnetic field till their direction is the same, and the motion of the wall of magnetic domain the course do not exist.