搜索结果: 121-135 共查到“知识库 磁学”相关记录137条 . 查询时间(7.189 秒)
Co0.9Fe0.1合金膜中组分元素的原子自旋磁矩和轨道磁矩及其对宏观磁化强度的贡献
X射线磁性圆二色性 Co-Fe合金 自旋磁矩 轨道磁矩
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2013/10/22
CoFe合金由于具有高饱和磁化强度、高居里温度和低矫顽力等特性备受人们关注, 研究合金中高饱和磁化强度的来源在实验上具有重要的意义. 利用X射线磁性圆二色性技术(XMCD)结合常规的磁测试手段对磁控溅射法制备的Co0.9Fe0.1合金薄膜进行研究, 利用加和定则得到Co的自旋(spin)磁矩和轨道(orbit)磁矩分别为1.58和0.31 mB, Fe的自旋磁矩和轨道磁矩分别为1.63和0.36 ...
对所制备的铁基稀土金属间化合物La0.8Ce0.2Fe11.4Si1.6的相组成、巡游电子变磁转变(IEMT)特性和磁热效应(MCE)进行了研究. 粉末X射线衍射结果表明, 在经1373 K真空退火处理5天后, 化合物La0.8Ce0.2Fe11.4Si1.6为单相立方NaZn13型晶体结构. 由居里温度附近的等温磁化曲线可计算出, 在0～3 T低磁场变化下, 该化合物在其居里温度TC(约186 ...
磁力永动机构想及其设计模型
磁力永动机 构想 设计模型
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2015/3/19
永动机是不可制成的,它违背了能量守蘅定律,在能量守蘅定律中有一句，能量不会创生，可是磁力定律又证明，磁体可以源源不断的向外输出磁能，只要磁体不受到大的创击，它的这一性能就不会改变，据次此我们是不是可以从新考虑永动机?
A 3-D Hall Sensor for Precise Angular Position Measurements
Magnetometers Integrated Hall sensors Angular position errors estimation
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2010/4/9
A 3-D silicon Hall effect sensor for precise angular-position measurement over 360° rotation is presented. This vector microtransducer functionally integrates into a common sensor region two parallel-...
母液分子对剪切屈服强度的影响
磁流变液 分子磁矩 剪切屈服强度
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2012/11/27
对磁流变液中母液分子在磁场作用下磁矩的变化以及由此引起的剪切屈服强度的变化进行了研究.结果表明：当磁感应强度较小时,忽略母液分子引起的剪切屈服强度的相对误差随磁感应强度的增加而线性增加，也随母液分子内电子数的增加而快速增加；当磁感应强度增加到一定值时,其误差几乎不变.为减少误差，应选用电子数较少的分子材料作母液.
Antiferromagnetic Transition in Thermally Evaporated Manganese-Vanadium Alloys
Néel point magnetic moment spin fluctuation
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2010/4/9
Antiferromagnetic transition in thermally evaporated Mn-V alloys has been studied using resistivity-temperature measurements from 300 to 1.4 K. Resistivity-temperature behaviour typical of bulk a -Mn ...
East-West and Radial Anisotropy in Cosmic Ray Modulation
Cosmic rays diurnal semi-diurnal anisotropy and solar poloidal magnetic field
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2010/4/12
The cosmic ray (CR) data observed with the Deep River neutron monitoring station has been harmonically analyzed for the period 1964--95 to obtain the diurnal and semi-diurnal components of cosmic ray ...
Unsteady Flow of a Dusty Conducting Fluid Between Parallel Porous Plates With Temperature Dependent Viscosity
Fluid mechanics magnetohydrodynamics heat transfer transient state two-phase flow dust particles finite differences
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2010/4/12
This paper studies unsteady laminar flow of dusty conducting fluid between parallel porous plates with temperature dependent viscosity. The fluid is acted upon by a constant pressure gradient and an e...
Structural Characterization and Magnetization of Mg0.5Cu0.5YxFe2-xO4 Ferrites
Ferrites X-ray diffraction lattice parameter X-ray density magnetization
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2010/4/12
Mg0.5Cu0.5YxFe2-xO4 ferrites were prepared by the solid state reaction method and were characterized by X-ray diffraction and magnetization measurements. A single spinel phase was obtained in the rang...
Comparative Study of First Two Harmonics in Cosmic Ray Intensity for the Period 1964-95
Cosmic rays Diurnal Semi-diurnal Anisotropy and Solar poloidal magnetic field
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2010/4/12
The Deep River neutron monitor data has been harmonically analyzed for the period 1964--95 covering three solar cycles 20, 21 and 22, looking for a long term trend of the diurnal and semi-diurnal anis...
Structural and Magnetic Properties of Co0.6ZnN0.4MnxFe2 - xO4
Co-Zn-Mn ferrite Cation distribution Magnetic properties
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2010/4/12
A series of Co-Zn ferrite samples substituted by Mn were prepared by the usual double sintering ceramic technique. The x-ray diffraction patterns of the samples confirmed the formation of single-phase...
Photoelectrochemical Properties of CdSe:Sb Thin Film based Solar Cells: Influence of Electrode Thickness
Photoelectrochemical Electrode Thickness Solar Cells
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2010/4/12
CdSe:Sb (0.1 mol%) thin films of varying thicknesses (423--1838 nm) have been deposited onto the glass and stainless steel substrates in an alkaline medium (pH = 10) using a solution growth technique....
Viscous Dissipation of Magnetosonic Waves in Solar Corona
magnetosonic waves solar corona dispersion relation damping length scale
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2010/4/15
Wave propagation and dissipation of magnetosonic waves are considered in an inhomogenous viscous coronal plasma permeated by a spatially varying magnetic field. In the linear magnetohydrodynamic appro...
Impurity Conductivity in Semiconductors Resulting from Radiant Excitation
Impurity Conductivity Semiconductors Radiant Excitation
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2010/4/14
This paper deals with the derivation of common formulae for induced impurity photosensibility with an arbitrary set of energy levels in the semiconductor gap. We give the expression for the real recom...
Ordering Due to Disorder in Frustrated Quantum Magnetic Systems
Quantum Magnetic frustrated magnetic systems
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2010/4/16
The phenomenon of order by disorder in frustrated magnetic systems is reviewed. Disorder (thermal or quantum fluctuations) may sometimes give rise to long range ordering in systems with frustration, w...