磁晶各向异性
- 网络Magnetocrystalline anisotropy;magnetic anisotropy;magneto-crystalline anisotropy
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发现在X结构化合物中,室温下的磁晶各向异性常数随含钆量的增加而增加;
For X structure , the magnetocrystalline anisotropy constant increased with X at room temperature .
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磁晶各向异性场引起的YIG单晶微波器件温度不稳定性的最佳补偿
On the optimum compensation of the temperature instabilities caused by the magnetocrystalline anisotropy field in YIG microwave devices
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但Co(2c)未被冻结的轨道磁矩却略小于Co(3g),所以两种晶位对磁晶各向异性的贡献大小之差别不应太大。
So , the difference of contribution to the anisotropy between the two Co-sites is not very distinct .
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强磁场下Er2Ga5O(12)的磁晶各向异性
The magnetocrystalline anisotropy of Er_3Ga_5O_12 under high magnetic field
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Al(Ga)原子择优占位对Gd2Co(17)化合物磁晶各向异性的影响
Influence of site preference of Al ( Ga ) atoms on magneto crystalline anisotropy of Gd_2Co_17 compounds
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通过减小晶粒尺寸,可使有效各向异性常数K相比局部的磁晶各向异性常数K1小几个数量级,有利于提高磁导率。
By reducing the grain size , the effective anisotropy can be decreased to extremely low value , usually several orders less than the local anisotropy .
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R2Fe(14)B型化合物中磁晶各向异性起源的理论分析
A theoretical analysis of the origin of magneto & crystalline anisotropy in r_2fe_ ( 14 ) b compounds
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发现以Al代换Fe时,使铁次点阵的磁晶各向异性出现极值;同时以Al代换Fe时,可使磁体的矫顽力显著提高。
We find that a maximum appears in anisotropy of Fe sublattice when the Fe atoms are replaced partly by Al atoms , and , the substitution of Fe with Al is effective to enhance the coercivity .
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其中Co-Pt薄膜更是由于矫顽力高、磁晶各向异性常数大、抗氧化和抗腐蚀性强等优点而倍受关注。
Especially , Co-Pt magnetic films have attracted intensive attention due to their large coercivity , strong magnetic anisotropy and high corrosion resistance .
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M型六角钡铁氧体(BaM)由于具有稳定的化学性质、低损耗、高的磁晶各向异性以及旋磁特性,在磁记录和微波通信领域有着重要的应用。
M-type hexagonal barium ferrite ( BaM ) are widely applied in magnetic recording and microwave communication , due to its excellent chemical and mechanical stability , low loss , high magnetocrystalline anisotropy and gyromagnetic property .
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硬磁相内的磁矩完成反转是在硬磁相钉扎场处,这时的外场比硬磁相的磁晶各向异性场Hhk还要大。
The magnetic reversal in the hard phase is completed at the second pinning field , which is larger than the anisotropy field of the hard phase .
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综述了高温使用烧结Nd-Fe-B磁体的研究现状,总结了制作高温烧结Nd-Fe-B磁体常用的3务途径,即提高居里温度、磁晶各向异性场和优化磁体显微组织。
Recent development of sintered Nd-Fe-B magnets used at high temperatures is reviewed in this paper . There are three possible approaches to produce these magnets , increasing curie temperature ( T_c ), enhancing anisotropy field ( H_A ) and improving microstructure .
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本文研究了离子代换对Li-Mg-Ti-Zn系铁氧体磁性(例如饱和磁化强度,磁晶各向异性、退磁态微波磁导率、铁磁共振线宽、矫顽力和剩磁比等)的影响。
Studied the effect of ion substitution in a Li-Mg-Ti-Zn ferrite system on magnetic properties , such as saturation magnetization , magnetocrystalline anisotropy , the real part of microwave permeability in the completely demagnetized state , ferromagnetic resonance line width , coercive force and magnetic remanence ratio etc.
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立方磁晶各向异性对面内场下硬磁畴的影响
Influence of cubic crystalline anisotropy on hard domain under in-plane field
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化合物HoMn6Sn6的磁晶各向异性及自旋重取向相变研究
Magnetocrystalline anisotropy and spin-reorientation transition of intermetallic compound HoMn_6Sn_6
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磁晶各向异性下铁磁体的线性与非线性磁化和磁化率
Linear and non linear magnetic susceptibilities of anisotropic ferromagnet
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稀土-Fe金属间化合物及其氢化物的交换作用各向异性与磁晶各向异性的研究
Anisotropy of the Exchange Interaction and Magnetocrystalline Anisotropy in Rare-earth-Fe Compounds and Their Hydrides
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一是要求硬磁相有尽可能高的内禀矫顽力和尽可能高的磁晶各向异性;
One is that the hard magnet phase must bear intrinsic coercive force as high as possible .
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本文计及立方磁晶各向异性,完善了面内磁场中条畴的稳定性理论。
Taking the cubic magnetocrystalline anisotropy into account , a theory of stability of stripe domains subjected to an in-plane field was developed .
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我们以往的研究发现,用双轴磁晶各向异性材料代替传统单轴磁晶各向异性材料可以加快磁化强度的翻转。
Our previous study showed that the magnetization switching of a circular disk can be quickened in biaxial materials instead of uniaxial materials .
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并且发现随着淬火温度升高,Co40Ni33.5Al26.5合金马氏体相的磁晶各向异性有减弱的倾向。
In addition , magnetocrystalline anisotropy of martensitic phase in Co_ ( 40 ) Ni_ ( 33.5 ) Al_ ( 26.5 ) alloy seems weakening with the increasing of quenching temperature .
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对弱磁性颗粒而言,形体各向异性可被忽略,但应注意其固有磁晶各向异性的存在,且总是大于所观察到的视磁化率各向异性。
In contrast , the shape anistropy can be neglected in the weak magetic particle , but the intrinsic crystalline anisotropy should be paid attention on , and it is always larger than the apparent AMS observed .
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结果表明:外应力场仅在低磁场下对具有立方磁晶各向异性系统的铁磁共振有影响,且区分弱磁场和强磁场的临界场依赖于外应力场的方向。
Numerical calculations show that the stress field will affect resonance curve only under weak magnetic field , and the critical field strength which distinguishes the weak from the strong external field depends on the direction of the stress field only .
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R2Fe(14)B型永磁材料中第二磁晶各向异性常数对反磁化过程的影响
Effect of the second-order magnetocrystalline anisotropic constant on the magnetization reversal in R_2Fe_ ( 14 ) B magnets
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强磁物质的局域电子磁晶各向异性非滞后剩磁各向异性
The magnetocrystalline anisotropy of localized electrons in strong magnetic substances
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本文导出了更精确的单晶铁磁共振公式,其近似度达到磁晶各向异性场的平方项。
More precise analytic expressions for ferromagnetic resonance of single crystals are calculated , the approximation being carried to terms quadratic in the magneto-crystalline anisotropy field .
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模拟结果表明,多晶体材料的织构影响磁晶各向异性能,当{111}〈112〉织构组分密度较低时,磁晶各向异性能较小。
The simulation results show that the textures of polycrystalline materials influence magnetocrystalline anisotropy energy , and the lower { 111 } 〈 112 〉 texture element density , the weaker magneto-crystalline anisotropy energy .
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另外,其磁电阻与外应力之间的关系紧密地依赖于两铁磁层的磁致伸缩系数以及磁晶各向异性等。
In addition , the stress field dependence of MR is close related with both the magnetostriction and the magnetocrystalline anisotropy of ferromagnetic layer .
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近年来,磁铅石型六角铁氧体以其优良的机械耐磨性,优异的化学稳定性,高的磁晶各向异性而被认为是一种极有潜力的高密度磁记录介质。
Recently , magnetoplumbite hexagonal ferrites have been considered as attractive candidates for high-density recording materials because of the good mechanic , chemical properties and high magnetic anisotropy .
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结果发现,有效磁各向异性常数随粒度的减小而增大,微粉的有效磁各向异性常数大于锂铁氧体的磁晶各向异性常。
The calculated results showed that the effective magnetic anisotropy constants of ultrafine particles were larger than the magnetocrystalline anisotropy constant of Li-ferrite .