Effect of addition of BaTiO<sub>3</sub> nano particles on the electrical transport properties of YBCO superconductor

Rejith, P. P.; Vidya, S.; Thomas, J. K.

doi:10.1088/1757-899x/73/1/012146

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…Using Bean's formula, critical current density (J ), was calculated for pure YBCO and multilayer CeO nano dimensional defect. Bean's formula is given as (Matsuunoto, Horide, Osamura, Mukaida, Yoshida, Ichinose & Horii, 2004;Rejith, Vidya &Thomas, 2015; = ∆…”

Section: Multilayer Deposition Of Ybco/ceomentioning

confidence: 99%

“…YBa 2 Cu 3 O 7− x (YBCO) film has attracted a lot of attention in electrical power applications due to its high critical transition temperature T c (>90 K) and critical current density J c (>1 MA cm −2 ) (Lei, Zhao, Xu, Wu, & Chen, 2011;Haugan, Barnes, Brunke, Manrtense & Murphy, 2003). The growth of YBa 2 Cu 3 O 7-x (YBCO) thin films is of great interest for superconducting applications because of its power transmission magnetic shielding, low phase noise oscillators, magnetic resonance imaging receiver coils (Chen et al, 2016;Matsuunotoet al,, 2004;Rejith, Vidya &Thomas, 2015;. Fine precipitates, dislocations, grain boundaries and vacancies are many kinds of crystalline defects, being considered as pinning centers Kujur, Sahoo, Panda, Asokan & Behera, 2013).…”

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confidence: 99%

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Enhancement of Critical Current Density of Yttrium Barium Copper Oxide Thin Films by Introducing Nano dimensional Cerium Oxide Defects

Emeakaroha¹,

James²,

Kebede³

2018

APR

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The critical current density, Jc  has been the most important parameter used in the design and engineering of effective devices which is one of the implementation of high temperature superconductors (HTSC). In this work, an effort has been made to further improve the critical current density of YBa2Cu3O7-x (YBCO) thin films by preventing the magnetic flux line lattice against the Lorentz force by pinning it in place with the aid of nano-dimensional defects. These defects were generated by distributing nano sized CeO2 islands after YBCO layer was created on LaAlO3 substrates perpendicular to the film using pulsed laser deposition (PLD) technique. Three samples with buffer layers of CeO2 were prepared. CeO2 with 50 pulses, 100 pulses and 150 pulses, after each 1000 pulses of YBCO were prepared five layers for each of the samples. The structural characterization of YBCO/CeO2 and YBCO pristine films were carried out using x-ray diffraction (XRD) and scanning electron microscopy (SEM). Superconducting proprieties were measured using a vibrating sample magnetometer (VSM). Jc  for the pure YBCO and the YBCO/CeO2 films were calculated from magnetization (M) versus Field (H) loops using Bean’s model. Jc  for the 50 pulses of YBCO/CeO2 films was found to be increased slightly by an order of magnitude of about 40% with respect to those of YBCO films without the nano dimensional defects.

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Section: Multilayer Deposition Of Ybco/ceomentioning

confidence: 99%

mentioning

confidence: 99%

Enhancement of Critical Current Density of Yttrium Barium Copper Oxide Thin Films by Introducing Nano dimensional Cerium Oxide Defects

Emeakaroha¹,

James²,

Kebede³

2018

APR

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“…For other applications, the introduction of columnar defects, like, for example, described in [5] might be preferable. Nano inclusions such WO3 [6], TiO2 [2], BiFeO3 [7] and BaTiO3 [8] were found efficient in enhancing critical current density. A search for other possibilities to improve pinning should not be neglected too.…”

Section: Introductionmentioning

confidence: 98%

Using Magnetic Nanoparticles to Improve Flux Pinning in YBa₂Cu₃O_x Films

Mojarrad

Hamid

Campaña

et al. 2021

2021 IEEE 11th International Conference Nanomaterials: Applications &Amp; Properties (NAP)

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Superconductors application can lead to significant economic benefits, especially in combination with use of liquid hydrogen, which is becoming an important part of the renewable energy economy. While many traditional superconductors cannot operate in liquid hydrogen, new materials, like high-temperature superconductors and MgB2 perfectly suit this purpose. YBa2Cu3Ox is one of the most used high-temperature superconductors. It can operate even in liquid nitrogen, at the temperature of 77.3 K, but has a strong advantage of enhanced critical current density at the boiling temperature of liquid hydrogen of 20 K. A disadvantage of this material is the absence of natural c-axis pinning centers defining its critical current density. A usual way to solve this problem is the introduction of artificial pinning centers in the form of nanoparticles. The nanoparticles, however, reduce the volume of the superconductor and can lead to the formation of high-angle grain boundaries detrimental for the critical current. Here we explore an approach of depositing magnetic nanoparticles on the surface of superconducting films, which neither reduce the volume of the superconductor nor create high-angle grain boundaries. The additional pinning by these nanoparticles is studied by recording magneto-optical images of the films.

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“…Many compounds such as PbS [6,7], CdTe [8], Co 3 O 4 , Mn 3 O 4 , Cr 2 O 3 [9], Co 0.5 Zn 0.5 Fe 2 O 4 [10], Dy 2 O 3 [11], Cr 2 S 3 [12], WO 3 [13], BaTiO 3 [14], TiO 2 [15] and SnO 2 [16] have been added or substituted into YBa 2 Cu 3 O 7-δ . The different magnetic properties showed varied and interesting effects on YBa 2 Cu 3 O 7-δ .…”

Section: Introductionmentioning

confidence: 99%

Influence of copper(II) sulfide addition on AC susceptibility and electrical properties of YBa2Cu3O7 superconductor

2021

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The effects of copper(II) sulfide (CuS) additions on the structure, electrical properties and AC susceptibility of YBa 2 Cu 3 O 7 (CuS) x superconductors for x = 0 to 5.0 wt. % were investigated. The solid state reaction method was used to prepare the samples. The non-added sample showed the highest onset temperature T c-onset (93 K) and zero-resistance temperature T c-zero (90 K). Addition of CuS lowered both T c-onset and T c-zero, and broadened the transition width. A double transition was observed in x ≥ 2.0 wt. % samples. This showed that CuS weakened the coupling between grains and suppressed the superconducting percolation leading to a double transition. The room temperature resistivity increased from 1.51 mΩ cm for x = 0 to 17.7 mΩ cm for x = 5.0 wt. %. The peak of the imaginary part of the susceptibility (χ"), T p shifted to lower temperatures with addition of CuS. The x = 1.0 wt. % sample showed the highest critical current density, J c (T p = 69.5 K) of 24.1 A cm −2 .

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Effect of addition of BaTiO₃ nano particles on the electrical transport properties of YBCO superconductor

Cited by 6 publications

References 6 publications

Enhancement of Critical Current Density of Yttrium Barium Copper Oxide Thin Films by Introducing Nano dimensional Cerium Oxide Defects

Enhancement of Critical Current Density of Yttrium Barium Copper Oxide Thin Films by Introducing Nano dimensional Cerium Oxide Defects

Using Magnetic Nanoparticles to Improve Flux Pinning in YBa₂Cu₃O_x Films

Influence of copper(II) sulfide addition on AC susceptibility and electrical properties of YBa2Cu3O7 superconductor

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Effect of addition of BaTiO3 nano particles on the electrical transport properties of YBCO superconductor

Cited by 6 publications

References 6 publications

Enhancement of Critical Current Density of Yttrium Barium Copper Oxide Thin Films by Introducing Nano dimensional Cerium Oxide Defects

Enhancement of Critical Current Density of Yttrium Barium Copper Oxide Thin Films by Introducing Nano dimensional Cerium Oxide Defects

Using Magnetic Nanoparticles to Improve Flux Pinning in YBa2Cu3Ox Films

Influence of copper(II) sulfide addition on AC susceptibility and electrical properties of YBa2Cu3O7 superconductor

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Effect of addition of BaTiO₃ nano particles on the electrical transport properties of YBCO superconductor

Using Magnetic Nanoparticles to Improve Flux Pinning in YBa₂Cu₃O_x Films