论文标题
YBA2CU3O7-δ薄膜中的不可逆性场和上临界场
Irreversibility Field and Upper Critical Field in YBa2Cu3O7-δ thin film
论文作者
论文摘要
我们介绍了YBA2CU3O7-δ薄膜的电运输特性的详细研究。 YBA2CU3O7-δ材料的不可逆性场（μ_0H_IRR），上临界场（μ_0H_C2），穿透深度（λ）和相干长度（ξ）是从电阻率曲线中推导的。 ITI观察到膜的μ_0H_IRR，μ_0H_C2和ΔTC很大程度上取决于场的方向和强度。在T = 0 K处的相干长度ξ（0）和穿透深度λ（0）值分别是根据不可逆性场（μ_0H__IRR）和上部临界场（μ_0H_C2）计算得出的。基于所有结果，超导特性随磁场方向的函数的变化呈现出产生的样品的各向异性。
We present a detailed study of the electrical transport properties of YBa2Cu3O7-δ thin film. The irreversibility fields (μ_0 H_irr), upper critical fields (μ_0 H_C2), penetration depths (λ) and coherence lengths (ξ ) of the YBa2Cu3O7-δ materials are deduced from the resistivity curves. Itis observed that μ_0 H_irr, μ_0 H_C2 and ΔTc of the film strongly depend on the direction and strength of the field. The coherence length ξ (0) and penetration depth λ (0) values at T = 0 K has been calculated from the irreversibility fields (μ_0 H_irr) and upper critical fields (μ_0 H_C2) respectively. Based on all the results, the change of the superconducting properties as a function of the magnetic field direction presents the anisotropy of the sample produced.
