Effect of swift heavy ions irradiation on the microstructure and current-carrying capability in YBa2Cu3O7-δ high temperature superconductor films

Liu Li; Liu Jie; Zeng Jian; Zhai Peng-Fei; Zhang Sheng-Xia; Xu Li-Jun; Hu Pei-Pei; Li Zong-Zhen; Ai Wen-Si

doi:10.7498/aps.69.20191914

Abstract

YBa₂Cu₃O_7−δ (YBCO) high temperature superconductor materials have many promising applications in energy, transportation and so on. Nonetheless, the application of YBCO in high magnetic field was limited because of low critical current. One-dimensional latent tracks produced by swift heavy ions irradiation can be effective pinning centers, thus enhancing superconductivity in external field. YBCO high temperature superconducting films were irradiated with 1.9 GeV Ta ions at room temperature and vacuum condition. Structure damages in irradiated samples were characterized by transmission electron microscopy (TEM). Continuous amorphous latent tracks, with diameter from 5 nm to 15 nm, throughout the whole superconducting layer can be observed from TEM images. Physical property measurement system (PPMS) was used to measure superconducting properties of samples before and after irradiation. When irradiated at optimal fluence of 8 × 10¹⁰ ions/cm², critical current reaches its maximum value and pinning force was twice of unirradiated sample, while critical temperature almost unchanged. The analysis of experimental results shows that latent tracks produced by swift heavy ions irradiation can enhance in-field current-carrying capability, without decreasing critical temperature. In the power-law regime ${J_c} \propto {B^{ - \alpha }}$ values of ɑ decreased with the increasing of fluence, indicating a weaker magnetic field dependence of critical current. ɑ reaches its lowest value 0.375 when irradiated at a fluence of 5.0 × 10¹¹ ions/cm², corresponding to a lowest in-field J_c. This result may be a combination of increasing pinning centers and decreasing superconductor volumes that work together. Normalized pinning force f_p = F_p/F_p,max of sample irradiated with different fluence as a function of magnetic field h = H/H_max was analyzed using Higuchi model. Fitting results show that planar defects are main source of pinning when h > 1, independent of irradiation. Whereas, dominate pinning centers shifting from surface pinning to isotropic normal point pinning with increasing fluence when h < 1. Given that latent tracks produced by Ta ions irradiation act as strong anisotropic pinning centers, the reason of the dominate pinning centers change with increasing fluence remains to be further studied.

Keywords:

YBCO high temperature superconducting films /
swift heavy ions irradiation /
pinning

Authors and contacts

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2.
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: Liu Jie, j.liu@impcas.ac.cn

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References

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Cited By

图 1 不同注量下YBCO高温超导薄膜的交流磁化率随温度的变化

Figure 1. AC susceptibility versus temperature of YBCO high temperature superconductor films irradiated with different fluences.

DownLoad: Full-Size Img PowerPoint

图 2 (a) 77 K下经Ta离子辐照后临界电流密度随磁场的变化情况; (b) 77 K下钉扎力随注量的变化情况

Figure 2. (a) Field dependence of critical current density at 77 K after Ta ions irradiation; (b) The variance of pinning force at 77 K with increasing fluence.

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图 3 辐照前后YBCO薄膜的约化钉扎力曲线及拟合结果

Figure 3. Scaling behavior of normalized pinning force curves for YBCO films before and after irradiation and fit curves.

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图 4 Ta离子在YBCO超导材料中的电子能损与核能损值

Figure 4. The nuclear and electronic energy loss in YBCO superconductor under Ta ions irradiation.

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图 5 注量为1.0 × 10¹¹ ions/cm²、能量为1.9 GeV的Ta离子辐照YBCO超导薄膜TEM图　(a) 低倍TEM图像; (b) 潜径迹的高分辨率TEM图像

Figure 5. TEM images of 1.9 GeV Ta ions-irradiated YBCO high temperature superconductor film with the fluence of 1.0 × 10¹¹ ions/cm²: (a) Low-resolution TEM image; (b) high-resolution TEM image of latent track.

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图 6 (a) 能量为1.9 GeV的Ta离子辐照前后YBCO高温超导薄膜的显微拉曼光谱; (b) O(2, 3)-B_1g和O(4)-A_g峰的峰位随着注量的变化情况

Figure 6. (a) Micro-Raman spectra of YBCO high temperature superconductor films between pristine sample and samples irradiated with 1.9 GeV Ta ions; (b) variations in the position of O(2, 3)-B_1g and O(4)-A_g peaks with different fluences.

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表 1 钉扎力密度标度函数

Table 1. Fitting functions of scaling behavior of normalized pinning force.

钉扎函数	钉扎中心类型
${{\rm{f}}_{\rm{p}}}(h) = \dfrac{9}{4}h{\left(1 - \dfrac{h}{3}\right)^2}$	Normal point pinning
${{\rm{f}}_{\rm{p}}}(h) = \dfrac{{25}}{{16}}\sqrt h {\left(1 - \dfrac{h}{5}\right)^2}$	Surface pinning

DownLoad: CSV

map

[1]	赵忠贤, 陈立泉, 杨乾声, 黄玉珍, 陈赓华, 唐汝明, 刘贵荣, 崔长庚, 陈烈, 王连忠, 郭树权, 李山林, 毕建清 1987 科学通报 32 412 Google Scholar Zhao Z X, Chen L Q, Yang Q S, Huang Y Z, Chen G H, Tang R M, Liu G R, Cui C G, Chen L, Wang L Z, Guo S Q, Li S L, Bi J Q 1987 Chin. Sci. Bull. 32 412 Google Scholar
[2]	Wu M K, Ashburn J R, Torng C J, Hor P H, Meng R L, Gao L, Huang Z J, Wang Y Q, Chu C W 1987 Phys. Rev. Lett. 58 908 Google Scholar
[3]	Zangenberg N 2012 High Temperature Superconductors(HTS) in Accelerator Systems[M]//High Temperature Superconductors (HTS) for Energy Applications (Cambridge: Woodhead Publishing) pp369-392
[4]	Wang J, Wei B, Cao B, Guo X, Zhang X, Song X 2013 Phys. C Supercond. its Appl. 495 79 Google Scholar
[5]	Sadovskyy I A, Koshelev A E, Glatz A, Ortalan V, Rupich M W, LeRoux M 2016 Phys. Rev. Appl. 5 014011 Google Scholar
[6]	Crisan A, Dang V S, Mikheenko P 2017 Phys. C Supercond. its Appl. 533 118 Google Scholar
[7]	Sato S, Honma T, Takahashi S, Sato K, Watanabe M, Ichikawa K, Takeda K, Nakagawa K, Saito A, Ohshima S 2013 IEEE Trans. Appl. Supercond. 23 7200404 Google Scholar
[8]	Macmanus-Driscoll J L, Foltyn S R, Jia Q X, Wang H, Serquis A, Civale L, Maiorov B, Hawley M E, Maley M P, Peterson D E 2004 Nat. Mater. 3 439 Google Scholar
[9]	Zhou Y X, Ghalsasi S, Rusakova I, Salama K 2007 Supercond. Sci. Technol. 20 S147
[10]	Kwok W K, Welp U, Glatz A, Koshelev A E, Kihlstrom K J, Crabtree G W 2016 Reports Prog. Phys. 79 116501 Google Scholar
[11]	LeRoux M, Kihlstrom K J, Holleis S, Rupich M W, Sathyamurthy S, Fleshler S, Sheng H P, Miller D J, Eley S, Civale L, Kayani A, Niraula P M, Welp U, Kwok W K 2015 Appl. Phys. Lett. 107 192601
[12]	Fischer D X, Prokopec R, Emhofer J, Eisterer M 2018 Supercond. Sci. Technol. 31 044006 Google Scholar
[13]	Khadzhai G Y, Litvinov Y V., Vovk R V., Zdorovko S F, Goulatis I L, Chroneos A 2018 J. Mater. Sci. Mater. Electron. 29 7725 Google Scholar
[14]	Biswal R, John J, Behera D, Mallick P, Kumar S, Kanjilal D, Mohanty T, Raychaudhuri P, Mishra N C 2008 Supercond. Sci. Technol. 21 085016 Google Scholar
[15]	Civale L, Marwick A D, Worthington T K, Kirk M A, Thompson J R, Sun Y 1991 Phys. Rev. Lett. 67 648 Google Scholar
[16]	Bourgault D, Hervieu M, Bouffard S, Groult D, Raveau B 1989 Nucl. Instruments Methods Phys. Res. Sect. B Beam Interact. with Mater. Atoms 42 61 Google Scholar
[17]	Nakashima K, Chikumoto N, Ibi A, Miyata S, Yamada Y, Kubo T, Suzuki A, Terai T 2007 Phys. C Supercond. its Appl. 463 665
[18]	Sueyoshi T, Nishimura T, Fujiyoshi T, Mitsugi F, Ikegami T, Ishikawa N 2016 Supercond. Sci. Technol. 29 105006 Google Scholar
[19]	Sueyoshi T, Sogo T, Nishimura T, Fujiyoshi T, Mitsugi F, Ikegami T, Awaji S, Watanabe K, Ichinose A, Ishikawa N 2016 Supercond. Sci. Technol. 29 065023 Google Scholar
[20]	Hardy V, Hervieu M, Provost J, Simon Ch 2000 Phys. Rev. B 62 691 Google Scholar
[21]	Sueyoshi T, Kotaki T, Uraguchi Y, Suenaga M, Makihara T, Fujiyoshi T, Ishikawa N 2016 Phys. C Supercond. its Appl. 530 72 Google Scholar
[22]	Sadovskyy I A, Jia Y, Leroux M, Kwon J, Hu H, Fang L, Chaparro C, Zhu S, Welp U, Zuo J M, Zhang Y, Nakasaki R, Selvamanickam V, Crabtree G W, Koshelev A E, Glatz A, Kwok W K 2016 Adv. Mater 28 4593
[23]	Strickl, N M, Talantsev E F, Long N J, Xia J A, Searle S D, Kennedy J, Markwitz A, Rupich M W, Li X, Sathyamurthy S 2009 Phys. C Supercond. its Appl. 469 2060 Google Scholar
[24]	Fuchs G, Nenkov K, Krabbes G, Weinstein R, Gandini A, Sawh R, Mayes B, Parks D 2007 Supercond. Sci. Technol. 20 S197 Google Scholar
[25]	Biswal R, John J, Avasthi D K, Kanjilal D, Raychaudhuri P, Mishra N C 2010 Nucl. Instruments Methods Phys. Res. Sect. B Beam Interact. with Mater. Atoms 268 3325 Google Scholar
[26]	Gupta R P, Gupta M 1992 Phys. Rev. B 45 9958 Google Scholar
[27]	Behera D, Mohanty T, Dash S K, Banerjee T, Kanjilal D, Mishra N C 2003 Radiat. Meas. 36 125 Google Scholar
[28]	Weinstein R, Gandini A, Sawh R P, Parks D, Mayes B 2003 Phys. C Supercond. its Appl. 387 391 Google Scholar
[29]	Murakami Y, Goto H, Taguchi Y, Nagasaka Y 2017 Int. J. Thermophys. 38 160 Google Scholar
[30]	Cui X M, Liu G Q, Wang J, Huang Z C, Zhao Y T, Tao B W, Li Y R 2007 Phys. C Supercond. its Appl. 466 1 Google Scholar
[31]	Higuchi T, Yoo S I, Murakami M 1999 Phys. Rev. B 59 1514
[32]	Cai Q, Liu Y C, Ma Z Q, Li H J, Yu L M 2013 Appl. Phys. Lett. 103 132601
[33]	Ziegler J F, Ziegler M D, Biersack J P 2010 Nucl. Instruments Methods Phys. Res. Sect. B Beam Interact. with Mater. Atoms 268 1818 Google Scholar
[34]	Weinstein R, Gandini A, Sawh R, Mayes B, Parks D 2006 Supercond. Sci. Technol. 19 S575 Google Scholar
[35]	Kwon J H, Meng Y, Wu L, Zhu Y, Zhang Y, Selvamanickam V, Welp U, Kwok W K, Zuo J M 2018 Supercond. Sci. Technol. 31 105006 Google Scholar
[36]	Zhu Y, Cai Z X, Budhani R C, Suenaga M, Welch D O 1993 Phys. Rev. B 48 6436 Google Scholar
[37]	Biswal R, John J, Mallick P, Dash B N, Kulriya P K, Avasthi D K, Kanjilal D, Behera D, Mohanty T, Raychaudhuri P, Mishra N C 2009 J. Appl. Phys. 106 053912 Google Scholar
[38]	Zeng L, Lu Y M, Liu Z Y, Chen C Z, Gao B, Cai C B 2012 J. Appl. Phys. 112 053903
[39]	Chang H, Ren Y T, Sun Y Y, Wang Y Q, Xue Y Y, Chu C W 1995 Phys. C Supercond. its Appl. 252 333 Google Scholar
[40]	Kujur A, Asokan K, Behera D 2013 Thin Solid Films 536 256 Google Scholar
[41]	Vlastou R, Gazis E N, Papadopoulos C T, Liaropapis E, Palles D, Kossionides S, Kokkoris M, Pilakouta M, Assmann W, Huber H 1996 Nucl. Instruments Methods Phys. Res. Sect. B Beam Interact. with Mater. Atoms 113 253 Google Scholar
[42]	Wang S S, Li F, Wu H, Zhang Y, Muhammad S, Zhao P, Le X Y, Xiao Z S, Jiang L X, Ou X D, Ouyang X P 2019 Chinese Phys. B 28 027401 Google Scholar
[43]	Hensel B, Roas B, Henke S, Hopfengärtner R, Lippert M, Ströbel J P, Vildić M, Saemann-Ischenko G, Klaumünzer S 1990 Phys. Rev. B 42 4135 Google Scholar
[44]	Rullier-Albenque F, Legris A, Bouffard S, Paumier E, Lejay P 1991 Phys. C Supercond. its Appl. 175 111 Google Scholar
[45]	Yan Y, Kirk M A 1998 Phys. Rev. B 57 6152
[46]	Yan Y, Kirk M A 1999 Philos. Mag. Lett. 79 841 Google Scholar
[47]	Kirk M A, Yan Y 1999 Micron 30 507 Google Scholar

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[19]	CAO ZHONG-SHENG, CUI CHANG-GENG, ZHOU LIAN. THE CHARACTERIZATION OF FLUX PINNING FORCE FOR Nb3Sn SUPERCONDUCTING MATERIALS IN HIGH MAGNETIC FIELDS. Acta Physica Sinica, 1987, 36(7): 940-944. doi: 10.7498/aps.36.940
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Vol. 69, Issue 7 - 2020-04-05

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Effect of swift heavy ions irradiation on the microstructure and current-carrying capability in YBa₂Cu₃O_7-δ high temperature superconductor films

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Corresponding author: Liu Jie, j.liu@impcas.ac.cn

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