Effect of the Buffer Layers on the Performance of Fe(Se, Te) Films Fabricated on IBAD Metal Templates by Pulsed Laser Deposition

Mou, Shaojing; Ye, Jiachao; Zhu, Rongji; Liu, Linfei; Li, Yijie

doi:10.1007/s10948-023-06504-9

Cited by 2 publications

(1 citation statement)

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“…As depicted in Figure 1, the metal substrates used in this study are Hastelloy C276 tapes covered with multiple oxide layers of Al 2 O 3 /Y 2 O 3 /MgO/CeO 2 in order from the bottom to the top layer 33,34 (Figure S1). In particular, MgO layer with a biaxially texture is prepared by an ion-beam-assisted deposition method.…”

Section: Methodsmentioning

confidence: 99%

Performance improvement of iron chalcogenide films grown at high laser repetition rates by pulsed laser deposition

Mou,

Ye,

Zhu

et al. 2023

J Am Ceram Soc.

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For mass production, the high deposition rate is necessary. A powerful approach is to deposit Fe(Se, Te) (FST) superconducting films at high laser repetition rate by pulsed laser deposition. Hence the FST films were grown on flexible metallic tapes using pulsed laser deposition at different laser repetition rates to explore the effect of laser repetition rate on the properties. It was found that as the laser repetition rate increases, the crystallinity and stoichiometry of FST films deteriorate, resulting in a degeneration in superconductivity. The critical temperature of the FST film deposited at a high repetition rate of 120 Hz dropped to 12.89 K. Furthermore, high performance FST film was successfully deposited at 120 Hz by increasing the substrate temperature with = 16.96 K and = 18.32 K. And the self‐field critical current density can reach 1.3 MA/cm2 at 4.2 K. The analysis of the pinning mechanism reveals that normal surface pinning centers play a dominant part in the FST film and are independent of the temperature. The collective pinning theory states that the FST film exhibits l pinning. The results may offer valuable information for rapid deposition of FST coated conductors for industrial production.This article is protected by copyright. All rights reserved

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Section: Methodsmentioning

confidence: 99%