MgB2 Thin Films

Xi, X. X.

doi:10.1007/3-540-27294-1_30

Cited by 14 publications

(3 citation statements)

References 114 publications

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“…Today, research institutions across the world continue to study the fundamental physical properties of MgBz and enhance the techniques for processing it into forms such as wires, tapes and thin films [2].MgBz thin films have been investigated for applications in high-field magnets, superconducting electronic devices, circuits and radio frequency cavities that used in accelerators [3], [4]. MgB2 is also characterized by a moderately sizable anisotropy of compressibility, which is smaller than for cuprates, but larger than for other related diboride [5].…”

Section: Introductionmentioning

confidence: 99%

The investigations of electronic structure, optical and magnetic properties of MgB<inf>2</inf> nanosheets

Zaari

Naji

Hachimi

et al. 2014

2014 International Renewable and Sustainable Energy Conference (IRSEC)

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First principles calculations were performed to study the electronic structures of Magnesium diboride (MgBz) bulk and nanosheet with different layer and thickness in order to understand the influence of layer number and thickness on electronic and optical properties for this compound, using the Full Potential Linearized Augmented Plane Waves (FP-LAPW) method with the Generalized Gradient Approximation (GGA) implemented in Wien2k code. It is shown that the MgBz is superconductor with Tc=39K, however MgBz sheet become a nonmagnetic semiconductor and good transparent in the visible range,the absorption coefficient decrease and the superconductor properties appears again with increasing number of layers.

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Section: Introductionmentioning

confidence: 99%

The investigations of electronic structure, optical and magnetic properties of MgB<inf>2</inf> nanosheets

Zaari

Naji

Hachimi

et al. 2014

2014 International Renewable and Sustainable Energy Conference (IRSEC)

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“…33,34) Two comprehensive reviews on MgB2 thin films were written by Naito and Ueda in 2004 35) and by Xi in 2009. 36) Some important factors that enable successful deposition of high quality MgB2 films include sufficient Mg vapor pressure, sufficiently low oxygen and carbon content, and avoidance of water.…”

Section: Deposition Techniques For Srf Applicationmentioning

confidence: 99%

Application of MgB<sub>2</sub> to Superconducting Radio-Frequency Cavities

Tajima

2022

TEION KOGAKU

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Synopsis: Advances in the research and development on MgB2 toward the application to superconducting radio-frequency (SRF) cavities for particle accelerators are reviewed. Evaluations using small flat thin film samples have shown promising results and the techniques to coat the interior of SRF cavities with MgB2 are being developed. We will probably see some results of standard 1.3-GHz cavities coated with MgB2 within 5 years. If MgB2 coated cavities are successfully developed, a new class of SRF cavities operated at ~20 K with cryocoolers will be possible. Such accelerators can be used more easily at 20 K than at 4 K since higher capacity cryocoolers are available and the static heat load is more tolerable. Future applications of such accelerators include, but not limited to, environmental remediation and national security in addition to physics and material science.

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“…The current-carrying performance has been improved by carbon in all the form of MgB 2 superconductors, such as polycrystalline bulk, single crystals, wires, tapes, filaments, fibers and thin films. Despite much research done on enhancement of J c in MgB 2 bulk samples, only a little work has been reported for improving J c in MgB 2 films [5]. Few reports have shown the improvement in J c by means of carbon doping in MgB 2 films [6,7].…”

Section: Introductionmentioning

confidence: 99%

Significant enhancement of critical current density by effective carbon-doping in MgB₂thin films

Ranot¹,

Lee²,

Kang³

2013

Progress in Superconductivity and Cryogenics

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The pure and carbon (C)-doped MgB 2 thin films were fabricated on Al 2 O 3 (0001) substrates at a temperature of 650 °C by using hot-filament-assisted hybrid physical-chemical vapor deposition technique. The T c value for pure MgB 2 film is 38.5 K, while it is between 30 and 35 K for carbon-doped MgB 2 films. Expansion in c-axis lattice parameter was observed with increase in carbon doping concentration which is in contrast to carbon-doped MgB 2 single crystals. Significant enhancement in the critical current density was obtained for C-doped MgB 2 films as compared to the undoped MgB 2 film. This enhancement is most probably due to the incorporation of C into MgB 2 and the high density of grain boundaries, both help in the pinning of vortices and result in improved superconducting performance.

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MgB2 Thin Films

Cited by 14 publications

References 114 publications

The investigations of electronic structure, optical and magnetic properties of MgB<inf>2</inf> nanosheets

The investigations of electronic structure, optical and magnetic properties of MgB<inf>2</inf> nanosheets

Application of MgB<sub>2</sub> to Superconducting Radio-Frequency Cavities

Significant enhancement of critical current density by effective carbon-doping in MgB₂thin films

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MgB2 Thin Films

Cited by 14 publications

References 114 publications

The investigations of electronic structure, optical and magnetic properties of MgB<inf>2</inf> nanosheets

The investigations of electronic structure, optical and magnetic properties of MgB<inf>2</inf> nanosheets

Application of MgB<sub>2</sub> to Superconducting Radio-Frequency Cavities

Significant enhancement of critical current density by effective carbon-doping in MgB2thin films

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Significant enhancement of critical current density by effective carbon-doping in MgB₂thin films