
Critical current density in (YBa2Cu3O7−δ)1−x–(PrBa2Cu3O7−δ)x …
2018年6月15日 · The YBa 2 Cu 3 O 7−δ (Y-123) superconductor is considered one of the most interesting materials for presenting high critical temperature TC and critical current density JC. In YBa 2 Cu 3 O 7−δ polycrystalline samples, very low critical current density is observed, usually in the range 103 A/cm 2.
Pr掺杂对Y-123体系晶格结构、磁性和超导电性的影响
总结了影响YPr-123体系超导电性的各种因素以及Pr抑制超导电性的一些问题。 其次介绍研究过程中的实验方法,包括样品的制备方法、磁性测量仪器的原理和方法MPMS、结构测量仪器的原理和方法、Rietveid方法的历史和介绍。
Giant superconductivity-induced modulation of the ... - Nature
2009年2月15日 · The first one concerns the question of how the onset of SC in the YPr-123 layers can give rise to such a large modulation of the FM magnetization density.
Magnetic transport properties and Hall effect in …
2003年1月15日 · Paulius et al. [19] have revealed that magnetic relaxation measurement of flux-pinning energy in unaligned polycrystalline YPr-123 increases up to the Pr concentration x=0.2, beyond which it declines.
Ionic size effect due to a nonclassical percolation process on the ...
2007年7月23日 · Such virtual thresholds take values different from those of the classical ones, and have been experimentally observed for YPr-123. The nonclassical percolation process is based on a mechanism where the crystal unit cell of R − 123 changes when
Role of Pr substitution as deoxygenation in suppression of ...
1996年9月1日 · We suggest that the suppression of superconductivity by Pr-substitution can be explained by means of an effective increasing of the oxygen deficiency in the structure, in a similar way to what happens in an R -123 system, when 7 − …
欧拉角序列3-2-1 - 卫星百科,很认真的中文航天百科 - 灰机wiki
欧拉角序列3-2-1 (Euler angles sequence 3-2-1)属于12种 欧拉角 序列,且是常用的序列之一。 它的 方向余弦矩阵 的表达式为: C(θ1,θ2,θ3) = C1(θ3)C2(θ2)C3(θ1) C (θ 1, θ 2, θ 3) = C 1 (θ 3) C 2 (θ 2) C 3 (θ 1) 最终可得:
Stable bonds and unstable bonds in Y(Pr)-123 system
2009年10月1日 · Single-phase polycrystalline samples of R Ba 2 Cu 2.9 Zn 0.1 O y ( R = Y, Nd, Gd, Er, and Tm) (Zn R 123) were synthesized using the standard solid-state reaction method.
欧拉角序列1-2-3 - 卫星百科,很认真的中文航天百科 - 灰机wiki
欧拉角序列1-2-3 (Euler angles sequence 1-2-3)属于12种 欧拉角 序列。 它的 方向余弦矩阵 的表达式为: C(θ1,θ2,θ3) = C3(θ3)C2(θ2)C1(θ1) C (θ 1, θ 2, θ 3) = C 3 (θ 3) C 2 (θ 2) C 1 (θ 1) 最终可得:
Institutional Repository of Peking University: Pr掺杂对Y-123体系晶 …
Pr掺杂对Y-123体系晶格结构,磁性和超导电性的影响: Authors: 玉静: Affiliation: 北京大学: Keywords: 高温超导电性 晶格结构 顺磁性 居里外斯定律 YPr-123体系 Pr掺杂: Issue Date: 2008: Citation: 北京大学. Abstract
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