One of the methods is attracted as it employs the magnetic material of low Curie point which is in response to the temperature change and thus able to de-ice automatically. 其中,低居里点铁磁材料因其具有随温度变化自动实现防冰的特点,引起了广泛的关注。
FeCo-based nanocrystalline soft magnetic materials have an amorphous and nanocrystalline two-phase structure with high Curie temperature. The exchange coupling among nanocrystals happened through the laminar amorphous phase. 铁钴基纳米晶软磁性材料具有高居里温度的非晶纳米晶两相结构,通过两相结构的匹配完成纳米晶粒间的磁矩交换耦合,使得材料在高温环境下具备优异的软磁性能。
The dynamic magnetic transition was investigated by EPR experiment near the ( Curie) temperature T_c, and the results are in agreement with the magnetization experiments. 电子顺磁共振实验可以观测到样品在磁有序转变温度(Tc)附近的动态磁性相转变,并且与磁化强度的实验结果一致。
The magnetic properties of Mn-Zn ferrite such as initial permeability, saturation magnetization, Curie temperature, resistivity and power loss are affected greatly by Fe2+ content in the raw materials. 研究了原材料中Fe2+含量对Mn-Zn铁氧体材料的电阻率ρ、功耗PL、居里温度TC、起始磁导率μi等性能的影响。
Magnetic measurement indicated that the Curie temperatures of FeSe thin films are above room temperature. 磁性测量表明样品的居里温度高于室温,并且在垂直样品表面和平行样品表面方向上观测到了强的各向异性,易磁化轴为平行于样品表面方向。
Magnetic Entropy Change and Measurement of Curie Temperature 磁熵变与居里温度的测量
Meanwhile, the temperature stability of the metal magnetic material is much better than that of the ferrite material after oxidation, as a result of the higher Curie temperature. 同时,金属磁性材料居里温度较高,在处理好氧化问题后,温度稳定性比铁氧体材料好。
The effect of Ca subsitution for Sr on the magnetic properties of Ru oxide was studied. By using Curie-Weiss law, the Weiss temperature T_P of the samples was determined. Using the ac magnetic susceptibility vs temperture, the Curie temperature T_C was determined. 研究了钙替代锶对钌氧化物磁学性质的影响,利用CurieWeiss定律确定了样品的Weiss温度TP,利用交流磁化率随温度变化的关系确定样品的Curie温度TC。
The magnetic feature of meteorites shows that magnetic ores are well distributed in the meteorites and the Curie temperature of the majority of magnetic ores is less than about 300-400 ℃, and the meteorites have suffered the stress action when they formed and after they formed. 陨石的一般磁性特征表明,磁性矿物分布均匀,并以低居里点(300~400℃)的成分为主。磁化率各向异性参数显示,陨石在形成过程中及其后,受到了一定的应力作用。
In general, the magnetoelectric coupling between ferroelectric order parameter and magnetic order parameter takes place when the magnetic Neel temperature ( Tn) is close to the ferroelectric Curie temperature ( T_ ( fe)). 一般,只有当磁性铁电体的磁尼尔温度TN接近其铁电居里温度T(FE)时,铁电序参量和磁序参量才有磁电耦合效应。
The average Mn magnetic moment decreases and the Curie temperature remains almost unchanged by the substitution of M for Ge. 三种原子对Ge原子的替代,使得平均Mn原子磁矩下降,但居里温度没有明显的变化。
As the simplest ferromagnetic half-metal oxide, Chromium dioxide is the traditional magnetic recording material and its Curie temperature Tc is high to 396K. 作为最简单的铁磁性半金属氧化物CrO2是传统的磁记录材料,而且CrO2的居里温度高达396K。
Magnetic moment, Curie temperature and spin wave excitation for amorphous fe_ ( 90-x) si_x zr_ ( 10) alloys 非晶态Fe(90-x)SixZr(10)合金的磁矩,Curie温度和自旋波激发
However, there are a few challenges in current research on magnetic semiconductors: ( 1) The Curie temperatures of materials are generally lower than the room temperature; ( 2) It is still not clear about the origin of ferromagnetism. 目前磁性半导体研究中存在几大问题:(1)材料的居里温度低于室温;(2)铁磁性来源的理论不确定。
The magnetic measurements showed that the samples are ferromagnetic at room temperature and the Curie temperature is above the room temperature. 磁性测量表明,样品具有室温铁磁性,居里温度高于室温。
As a kind of microwave absorption materials, metallic magnetic materials and their alloys have attracted much attention due to high saturation magnetization, high permeability and high Curie temperature. 作为众多吸波材料的一种,磁性金属材料及其合金因为具有高的饱和磁化强度、高的磁导率和高的居里温度而被广泛的研究。
For the study of magnetic materials, magnetization, Curie temperature, and magnetic anisotropy are basic parameters, in which magnetic anisotropy is especially important for the magnetic recording materials. 在磁性材料研究中,其磁化强度、居里温度以及磁各向异性是最基本的研究对象。其中对于磁记录设备中的磁性材料,磁各向异性这一参量则显得尤为重要。
The results reveal that hydrogen could lead to a change in electronic transfer, inducing the magnetic coupling changes, resulting in a Curie temperature above the room temperature. 结果显示,氢会促使Co掺杂Zn0体系电子转移变化并诱导体系磁性耦合转变,系统居里转变温度将达到室温以上。
At present, the diluted magnetic semiconductor research main problem is how to produce more kinds of materials and to find more suitable for a wide range of doped elements to improve the Curie temperature of diluted magnetic semiconductor. 目前,对稀磁半导体研究的首要问题就是如何制备出更多种类的材料和寻找更适合广泛掺杂的元素来提高稀磁半导体的居里温度。