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magnetic moment 磁矩。

magnetic needle

Abstract : the magnetic moment of a hydrogen atom is calculated by using the solution of the relativistic wave equations . it is shown that the so called total magnetic moment are produced from the electron orbit motion . these results show that the total angular momentum j is actually the relativistic orbital angular momentum 文摘:利用氫原子的相對論性波動方程解計算了氫原子的磁矩.結果表明,現行量子理論中所謂的總磁矩實際上都是由電子的軌道運動產生的,由此提出了所謂的總角動量實際上是相對論性軌道角動量的看法

The difference between the magnetic moments for the samples with respective doping level can be ascribed to the variation of the competition between thermal effect and the magnetic coupling . based on the spin orientation rotation of dy sublattice as well as the antiferomagnetic coupling between dy sublattice and mn sublattice , we successfully elucidate the changes of magnetic structure in perovskite compounds s . electron spin resonance ( esr ) study on perovskite compounds on the basis of chapter 4 , we give further study on micromagneticism of dy - doping perovskite compounds la0 . 67 - xdyxsr0 . 33mno3 其中第一節簡單回顧了早期對a位雙稀土元素元素摻雜鈣鈦礦化合物的研究,早期研究較多的是替代元素的離子半徑變化上,由于替代離子半徑的改變,使a位平均半徑變ylll化,致使公差因子改變,使mn o長、鍵角變化,晶格效應的作用使化合物的磁性、電性、 cmr效應發生改變。

The results showed that the microstructure of as - deposited tbdyfe ii 1ms were amorphous and the crystal of tbfe2 were found in films after annealing at 500 . annealing films in vaccum could improve the saturation magnetization ms and the susceptibility , decrease the coercivity and the saturaion field , and make the direction of the magnetic moments parallel to the film plane 結果表明,制備態薄膜為非晶態結構,經過500真空退火熱處理后,薄膜出現了tbfe _ 2的結晶物,薄膜的矯頑力和外場的飽和磁場大大降低,飽和磁化強度增強,初始磁化率提高,易磁化軸轉向膜面。

We consider a neutral particle with magnetic moment antiparallel to the field . with the interaction potential energy between the magnetic moment of the particle and the magnetic field , we obtain the classical motion equation of the neutral particles in the loffe trap . in some limit conditions , by using the perturbative method , the equations may take on concise forms . of which the two equations about x and y are mathieu equations . if we properly set the parameters and have the condition a > > q > 0 , we can solve the mathieu equation with the traditional wkbj method . as a new attemptation , with fourier series expansion we solve the mathieu equation and obtain the classical motion law of the neutral particles 若阱的參數設置使得條件> > q 0成立時,我們可以利用傳統的wkbj方法近似求解馬丟方程。作為一種新的嘗試,本文還采用傅立葉級數展開的辦法來對馬丟方程進行求解,從而得到中性粒子在阱中的經典運動規律。在研究ioffe阱對中性粒子的囚禁問題時,實際上我們更感興趣的是馬丟方程的周期解,而要想獲得這種周期解,和q必須滿足一定的關系,亦即必須選擇阱的特定的參數和粒子的特定初始條件,對這一問題我們進行了嘗試性的研究。

It must then make fewer turns per second , in obedience to a law of physics called the conservation of magnetic moment ( this is similar to the law of conservation of angular momentum that slows a spinning ice dancer down as he spreads his arms ) 服從稱為磁矩守恒的物理定律,其會減少每秒旋轉的次數(這一定律與角動量守恒定律很相似,花樣滑冰舞者通過伸展自己的上肢來減慢自己旋轉的速度就是利用這一原理) 。

The coupling between cr atoms in the system with two cr atoms considered is found to be ferromagnetic , and the magnetic moment per cr atom is similar to the case in which only one cr atom is considered in the same doping concentration 在包含兩個cr原子的體系中cr原子之間是鐵磁性偶合,每個cr原子的磁矩與相同濃度下摻雜一個cr原子的磁矩相近。

The magnetic moments per cr atom vary significantly with cr concentration , and the trend of variation is in agreement with that of the experiment 計算結果表明cr原子的磁矩隨摻雜濃度有明顯的變化,變化趨勢和實驗吻合。

The expression of magnetic moment of an electrified body is similar to that of moment of inertia of a body with various density 摘要帶電體定軸轉動的磁矩計算與剛體定軸轉動的轉動慣量相仿,平行軸定理有助于磁矩計算。

If all the shells containing electrons are completely filled , the effects cancel out and each atom has a resultant zero magnetic moment 如果有的電子層上均排滿電子,則作用力互相抵消,而導致每個電子的磁矩為零。

They are caused by the coexistence in the crystal of spontaneous ferroelectric and magnetic moments 通常將這類具有線性磁電效應的物質稱為磁電體。

Research on high - frequency soft - magnet properties of low magnetic moment high power microwave ferrite 低磁矩大功率微波鐵氧體材料高頻軟磁特性研究

Density functional theory study on the electronic structure and the orbital magnetic moment of co2ysn y 電子結構和軌道磁性的第一性原理研究

Atomic magnetic moment 原子磁矩

Orbital magnetic moment 軌道磁矩

Anomalous magnetic moment 異常磁矩

Molecular magnetic moment 分子磁矩

“ for his precision determination of the magnetic moment of the electron 用射頻束技術精確地測定出電子磁矩,創新了核理論

Application of magnetic moment formula in the non - uniform magnetic field 磁力矩公式在非均勻磁場中的應用

Magnetic moment capping system , adjust , adgree of tightness freely 磁力矩旋蓋頭,松,緊,任意調節。