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- We have studied analytically the electron effective mass of single-wall carbon nanotubes. 他們發(fā)現，在這兩個(gè)觀(guān)測結果中，特定波長(cháng)的位置會(huì )隨著(zhù)質(zhì)子對電子的質(zhì)量比而改變。
- The Effect of Electron Effective Mass Mismatch on Electron-acoustic Phonon Scattering Rate in a Quantum Wire 量子線(xiàn)中電子有效質(zhì)量失配對電子-聲子散射率的影響
- The effective mass m * of the carrier of IMO is about 0 35 m. IMO薄膜的載流子有效質(zhì)量約為電子靜止質(zhì)量的 0 35倍 ;
- This paper analyses the physical sence of effective mass of energy band elec-tron and also discusses its tensor. 本文分析了有效質(zhì)量的物理意義,并對它的張量性質(zhì)進(jìn)行了討論。
- The quark mass is defined by quark propagator and from this definition we calculate effective mass of quark. 用夸克傳播子定義了夸克的質(zhì)量，進(jìn)而討論了夸克的有效質(zhì)量。
- The heterostructure intervalley transferred electron effect and its devices have been thoroughly analyzed through this work. 從而深化了對異質(zhì)谷間轉移電子器件及其工作機理的研究。
- The Discuss for Effective Mass of Crystal Electron 晶格中電子的有效質(zhì)量討論
- In the crossing coupling reactions, the yield is at similar level due to unobvious electron effect resulted from the existence of ketones. 苯環(huán)上取代基的種類(lèi)及位置對反應也有影響。在交叉偶聯(lián)中，由于有酮存在，因此電子效應不明顯，產(chǎn)率差不多。謝謝大家！
- In the framework of effective mass envelope function theory, the electronic states of the InAs/GaAs quantum ring are studied. 摘要在有效質(zhì)量包絡(luò )函數理論的框架下，研究了銦砷／鎵砷量子環(huán)的電子態(tài)。
- Effective mass of electron and hole 電子和空穴的有效質(zhì)量
- Abstract: The vibration solution of a massive spring system is presented, the effective mass of a spring is derived. The approximate period of the vibration is given. 文摘:給出了彈簧質(zhì)量不可忽略的彈簧振子系統的振動(dòng)解，導出了彈簧的有效質(zhì)量的漸近級數表達式，指出振動(dòng)呈擬周期性.
- It is found that under little axial strain,armchair carbon nanotubes are still conductors,but Fermi wave vector,Fermi dot and the effective mass near Fermi face are changed. 在小的軸向拉伸下,扶手椅型碳納米管仍然是良好的導體,但其費米波矢、費米點(diǎn)及費米面處的有效質(zhì)量都發(fā)生了變化。
- T he influence of the electron-spin on the ground state energy and the effective mass of a strong-coupling magnetopolaron in polar crystals are discussed. 討論了電子自旋對極性晶體內強耦合極化子基態(tài)能量和有效質(zhì)量的影響。
- Temperature dependence of the effective mass of the strong coupling magnetopolaron in polar crystals are studied by means of an improved linear combination operator method. 采用改進(jìn)的線(xiàn)性組合算符法研究極性晶體中強耦合磁極化子的有效質(zhì)量與溫度的關(guān)系。
- Key words： reinforced concrete、 concrete、 high performance concrete、 cement concrete、 pozzolanic effect、 mass concrete. 關(guān)鍵詞：鋼筋混凝土、混凝土、性能混凝土、高強混凝土、泥混凝土、生骨料混凝土、體積混凝土。
- That's rather an effective use of color. 這種使用顏色的手法效果相當好。
- Inductive effect, conjugation effect and hyper conjugation effect are called electronic effect. 誘導效應、共軛效應和超共軛效應總稱(chēng)為電子效應。
- For a nucleophile, its regioselectivity is also controlled by both steric hindrance and electronic effect. 對于親核試劑，一般的親核試劑也同時(shí)受電子效應和空間效應的影響；
- In accordance with the effective mass theory, the magnetic Kronig-Penny potential was used to solve the electronic band structure of GaAs/Al?xGa? 1-xAs superlattice in a periodic magnetic field. 在有效質(zhì)量理論近似下;采用磁Kronig-Penny勢場(chǎng);精確求解了GaAs/AlxGa1-xAs超晶格中的電子在周期性磁場(chǎng)中形成的能帶結構.
- In this paper, the dispersion of the longitudinal optical phonons is considered in a parabolic approximation. The ground state enery, effective mass and selftrapped energy ef a polaron in a polyatomic crystals are calculated. 本文計及縱光學(xué)聲子的色散,在拋物近似下,計算了多原子晶體中極化子的基態(tài)能量,有效質(zhì)量和自陷能。
