Influence of radiation defects on superconductivity in YBa/sub 2/Cu/sub 3/O/sub 7- delta / films

Никонов, А. А.; Sotnikov, G. V.; Tokarev, A. S.

doi:10.1109/20.92833

Cited by 3 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The irradiation experiments includes diverse radiation, for instance electromagnetic radiation with short wavelengths like Y-irradiation, [41] X-ray irradiation, [70,71] radiation in the visible optical spectrum, [35,36,44] or radiation with wavelengths in the NIR or IR [72,73] region. In addition scientists carried out particle irradiation using beams consisting of electrons, [42,[74][75][76] ions, [37,74,[77][78][79] protons, [80,81] and neutrons. [75,82] Within the group of particle irradiation experiments the results achieved with oxygen ion bombardment (ion etching) seem to be the most promising ones.…”

Section: Introductionmentioning

confidence: 99%

Oxygen Plasma Effects on Zero Resistance Behavior of Yb,Er‐doped YBCO (123) Based Superconductors

Schäfer

Banko

Nordmann

et al. 2014

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

Abstract. Rare-earth doped YBa 2 Cu 3 O 7-δ samples were synthesized starting from the corresponding oxides Y 2 O 3 , Yb 2 O 3 , Er 2 O 3 , CuO as well as Ba(OH) 2 by heating to 950°C under air. The doping concentrations were adjusted to 15 % Yb, 7 % Er and 20 % Yb, 15 % Er, respectively, with respect to the yttrium content. The orthogonal phased (123) YBCO ceramics were exposed to an oxygen plasma for 140 and 380 min. Zero resistance temperature (T c,0 ) was determined by measur-

show abstract

Section: Introductionmentioning

confidence: 99%

Oxygen Plasma Effects on Zero Resistance Behavior of Yb,Er‐doped YBCO (123) Based Superconductors

Schäfer

Banko

Nordmann

et al. 2014

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

show abstract

“…The results of these irradiation experiments * E-mail: grant@yerphi.am have been documented in the scientific literature as follows: ions [1,2], γ-quanta [3,4], protons [5,6], neutrons [7,8], electrons [1,[8][9][10][11][12] The aim of these experiments is to determine the influence of atomic disordering on the order parameter of HTSC; revealing the symmetry of this parameter is an important step towards understanding the mechanism behind HTSCs [13,14]. Experiments have shown that irradiation by ions, neutrons and protons causes point and cluster type structural defects in all the sub-lattices of a HTSC, while irradiation with γ-quanta causes mainly point defects in the oxygen sub-lattice of HTSC.…”

Section: Introductionmentioning

confidence: 99%

Electron irradiation effects in doped high temperature superconductors YBa2Cu3−x MxOy (M = Fe, Ni; x=0; x=0:01)

2008

View full text Add to dashboard Cite

Abstract:The influence of irradiation by electrons with an energy of 8 MeV, at dose intervals between 10 13 and 2×10 18 el/cm 2 , on the properties of impurity doped, high-temperature superconductor YBa 2 Cu 3− M O (M = Fe, Ni; = 0; = 0 01) ceramics has been studied. It has been established that, as the irradiation dose is increased, the onset temperature of the transition to the superconducting state (T ), and the intergranular weak link coupling temperature between granules (T J ), exhibit an oscillation around their initial values of approximately about 1-1.5 K. This oscillation indicates that the process of radiation defect formation in HTSC occurs in multiple stages. It was also found that the critical current (J ) decreases with an increase of the irradiation dose, and exhibits a local minimum at a dose of 8 × 10 16 el/cm 2 coinciding with minima for T and T J at this dose. It was found that the introduction of Fe atoms to the ceramic decreases T J , while introducing Ni atoms decreases both T and T J ; it is suggested that this is a result of Ni substitution of Cu both in Cu2 plane sites and Cu1 chain sites. The introduction of Ni causes a large change in the intergranular critical current density, J . A critical irradiation dose is obtained (2 × 10 18 ) after which all HTSC parameters strongly decrease, i. e. the superconductivity of HTSC is destroyed. 74.62.Dh, 74.72Bk, 74.25Ha, 74.25Sv PACS (2008):

show abstract

Environmental considerations for application of high Tc superconductors in space

Carlberg

Kelliher

Wise

et al. 1993

Applied Superconductivity

View full text Add to dashboard Cite

Influence of radiation defects on superconductivity in YBa/sub 2/Cu/sub 3/O/sub 7- delta / films

Cited by 3 publications

References 7 publications

Oxygen Plasma Effects on Zero Resistance Behavior of Yb,Er‐doped YBCO (123) Based Superconductors

Oxygen Plasma Effects on Zero Resistance Behavior of Yb,Er‐doped YBCO (123) Based Superconductors

Electron irradiation effects in doped high temperature superconductors YBa2Cu3−x MxOy (M = Fe, Ni; x=0; x=0:01)

Environmental considerations for application of high Tc superconductors in space

Contact Info

Product

Resources

About