超导转变温度

在第五章，通过引入化学势广，我们计算了MgBz超导体的掺杂性质，得到了超导转变温度与化学势p的关系。

The relation between superconductivity transition temperature and doping is obtained .

关于交流四引线电阻法测量超导转变温度Tc及其机理的探讨

Studies on measuring superconducting transition temperature Tc with FOUR-SERVICE-WIRE alternating-current ' resistance method and its mechanism

Sr2RuO4超导转变温度附近c方向磁阻行为研究

Magnetoresistance analysis of sr_2ruo_4 near superconducting transition temperature

Hg掺杂和不同气氛下退火对Tl系2212相超导转变温度Tc的影响

Influence Of Hg-Dopant And Annealing Conditions On Superconductivity Of Tl-2212 Phase

负U中心模型的超导转变温度及同位素效应

Superconducting Transition Temperature and Isotopic Effect of a Negative U Center MOdel

其囫囵电子相发生相变的温度就是该超导体的超导转变温度TC。

The superconducting temperature TC is the temperature at which the phase change occures .

这种行为与超导转变温度Tc与x的关系一致，这表明该峰与超导机制密切相关。

Such behavior is similar to the superconducting transition temperature , which suggests that it is related with the superconducting mechanism .

Zn掺杂对MgB2电子结构及超导转变温度的影响

The effect of Zn doping on the electronic structure and superconductivity temperature of MgB_2

该文研究了具有不同Tl缺位的Tl－2223和Tl－2212超导体的结构和超导转变温度的时效稳定性。

Abstract The stability of time effects of Tl-2223 and Tl-2212 superconductors with a different deficiency has been investigated .

2K以上超导转变温度标准的测量装置

A Measuring System for Superconductive Transition Temperature

在Y-Ba-Cu-Nb-O系统中，当Nb的含量较低时（x≤0.3），没有发现其晶格常数和超导转变温度Tc有明显变化，掺Nb能形成YBa2NbO6，BaNbO3等；

In Y-Ba-Cu-Nb-O system , cell Parameters and Tc show no noticeable changes in lower Nb content ( x < 0.3 ) .

三元化合物SnMo6S8的超导转变温度与电子态密度

The superconducting transition temperature and the density of electron states of ternary compounds snmo_6s_8

s+d混合波对称性下计入库仑作用和VanHove奇异性的超导转变温度和同位素效应

The superconducting transition temperature and isotope effect under s + d mixed wave symmetry including Coulomb repulsion and van Hove singularity

MoxGe（1-x），MoxSi（1-x）薄膜的非晶形成成份及超导转变温度

The superconducting transition temperature and composition rang for the formation of an amorphous phase in the mo_xge_ ( 1-x ), mo_xsi_ ( 1-x ) films

实验测得含18-25at%S1铌硅合金非晶带超导转变温度Tc与硅含量增加呈现线性下降关系。

Experimental measurements show that the Si content is from 18 % to 25 % and that the superconducting transition temperature Tc decreases linearly with the increase of the Si content .

周期系金属元素和A-15化合物超导转变温度的计算

On the superconducting transition temperature of metallic elements in periodical system and A-15 compounds

在Bi-Pb-Sr-Ca-Cu-O体系中冷却速率对超导转变温度的影响

Effect of cooling rate on the . Transition temperature in bi-pb-sr-ca-cu-o system

富氧的Tl1212薄膜是在氧气中高温下生成的，超导转变温度Tc一般为80～90K。

The oxygen-rich Tl-1212 thin film was grown in oxygen atmosphere at high temperature . Superconducting critical temperature T c of the as-synthesized film was typical in the range of 80 ~ 90K .

对钒膜的超导转变温度作了测量，Tc的最高值为4.35K。

The superconducting transition temperatures of V films , Tc , have been measured and the maximum Tc is 4.35 K.

目前已经发现的铁基超导体的超导转变温度已经超过了BCS理论预言的极限，被证明是一类新的非常规超导体。

Later the superconducting transition temperature in the iron-based superconductors broke through the limit that BCS theory predicted , which indicates that they are a new type of unconventional high Tc superconductors .

对系统的介电函数作了RPA近似计算，得到了超导转变温度的表达式，并讨论了混合对效应。

The RPA approximation is used to calculate the dielectric function , to derive the expression for the superconducting transition temperature and to discuss the effect of hybrid pairs .

因此，它们的费密面的电子态密度也比纯Ti的高，这正是Ti-Pd系合金的超导转变温度Tc比纯Ti的有较大幅度提高的原因。

Therefore , the densities of states at Fermi surface for these alloys are higher than that of pure Ti , this is the reason why the alloys have much higher superconductive transition temperature Tc than pure Ti .

MgB2中较显著的临界涨落效应起源于其较高的超导转变温度和层状结构。

The obvious critical fluctuation in MgB 2 originates from much higher T c and layer crystal structure .

薄膜的超导转变温度高达108.6K。在液氮温度下，零磁场时的临界电流密度达7.6×106A／m2。

The highest transition temperature is about 108.6K and the critical current density is as high as 7.6 × 106A / cm2 at 77K in zero magnetic field .

SQUID测量结果表明：钠的掺入仅使MgB2超导转变温度稍有降低。同时发现在样品的烧制过程中，多于化学计量比的Mg粉并没有影响到超导的转变温度及转变温度的宽度。

SQUID magnetization measurement results indicate that adulteration of Na slightly reduces the transition temperature of MgB 2.We find in the course of preparation that superabundance stoichiometry of Mg has no influence on superconducting transition temperature and transition temperature width .

简单氧气氛下热处理后，超导转变温度由45K提高到84K。

After oxygen annealing , the superconducting transition temperature T c of the crystal increases from 47 K to 84 K.

利用推广的BCS场理论，考虑随机矩阵理论的能级统计，得到了适合奇偶两种电子数的金属小粒子能隙和超导转变温度的统一公式。

Based on generalized BCS theory , considering energy level statistics from Random Matrices Theory , we have derived the unified formulas of energy gap and superconductor critical temperature suitable for ultra-small metallic grains with both odd and even number of electrons .

动态法测定超导转变温度的研究

A study on measurement of superconductive transition temperatures by dynamic method

在超导转变温度以上，我们发现了较大的能斯特信号。

The result shows huge Nernst signal above the superconducting transition temperature .

离子注入对超导转变温度的影响

The influence of implanted ions on the superconducting transition temperature