Effects of HoMnO 3 nanoparticles addition on microstructural, superconducting and dielectric properties of YBa 2 Cu 3 O 7–δ

Abdalla Bahboh, Abdul Halim Shaari, Hussein Baqiah, Chen Soo Kien, Mohd Mustafa Awang Kechik, Mohd Haniff Wahid, Roslan Abd. Shukor, Zainal Abidin Talib

Research output: Contribution to journalArticle

Abstract

(YBa 2 Cu 3 O 7–δ ) 1-x (HoMnO 3 ) x (x = 0.0, 0.0025, 0.005, 0.01, 0.03 and 0.05) ceramics were fabricated by introducing co-precipitation synthesized HoMnO 3 (HMO) nanoparticles during solid state reaction process of YBa 2 Cu 3 O 7–δ (Y-123) superconductors. (Y-123) 1-x (HMO) x samples were characterized using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) attached with energy Dispersive X-ray spectrometer (EDX), four-point probe measurement, AC susceptometer and impedance analyzer. Majority of XRD patterns were indexed to orthorhombic Y-123 phase. Besides, YBaMn 2 O 5 (1.5–3.6%) and YBaMn 2 O 6 (2.4–7.4%) phases were detected. FESEM images and EDX analysis showed the presence of agglomerated particulates related to Mn and Ho based phases residing in between the Y-123 grains. The superconducting behavior was significantly enhanced at x = 0.0025 while there was no major depression noticed in critical temperature (T c-R=0 ) as the addition increased till x = 0.03 (T c-R=0 = 88 K). AC susceptibility curves of composites samples manifested sharp transitions for samples with x = 0.0025 and 0.005. Dielectric parameters ε r ′ and ε r ′ʹ decreased as the frequency increased for all samples. The ε r versus frequency measurements showed increment in ε r ′ and ε r ′ʹ values for all added samples as compared to Y-123 sample. The highest values for ε r ′ and ε r ′ʹ were obtained for sample x = 0.05 with the highest loss at lower frequency. The Nyquist plots of complex impedance were analyzed where two semi-arc circulars represent grain and grain boundary effect were deduced.

Original languageEnglish
JournalCeramics International
DOIs
Publication statusPublished - 1 Jan 2019

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X ray spectrometers
Field emission
Dielectric properties
Electron microscopes
Nanoparticles
Scanning
X ray diffraction
Coprecipitation
Solid state reactions
Diffraction patterns
Superconducting materials
Grain boundaries
Composite materials
Temperature
barium copper yttrium oxide

Keywords

  • Co-precipitation
  • Critical temperature
  • HoMnO
  • Impedance
  • Solid state reaction
  • Y-123

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Effects of HoMnO 3 nanoparticles addition on microstructural, superconducting and dielectric properties of YBa 2 Cu 3 O 7–δ . / Bahboh, Abdalla; Shaari, Abdul Halim; Baqiah, Hussein; Kien, Chen Soo; Kechik, Mohd Mustafa Awang; Wahid, Mohd Haniff; Abd. Shukor, Roslan; Talib, Zainal Abidin.

In: Ceramics International, 01.01.2019.

Research output: Contribution to journalArticle

Bahboh, Abdalla ; Shaari, Abdul Halim ; Baqiah, Hussein ; Kien, Chen Soo ; Kechik, Mohd Mustafa Awang ; Wahid, Mohd Haniff ; Abd. Shukor, Roslan ; Talib, Zainal Abidin. / Effects of HoMnO 3 nanoparticles addition on microstructural, superconducting and dielectric properties of YBa 2 Cu 3 O 7–δ In: Ceramics International. 2019.
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abstract = "(YBa 2 Cu 3 O 7–δ ) 1-x (HoMnO 3 ) x (x = 0.0, 0.0025, 0.005, 0.01, 0.03 and 0.05) ceramics were fabricated by introducing co-precipitation synthesized HoMnO 3 (HMO) nanoparticles during solid state reaction process of YBa 2 Cu 3 O 7–δ (Y-123) superconductors. (Y-123) 1-x (HMO) x samples were characterized using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) attached with energy Dispersive X-ray spectrometer (EDX), four-point probe measurement, AC susceptometer and impedance analyzer. Majority of XRD patterns were indexed to orthorhombic Y-123 phase. Besides, YBaMn 2 O 5 (1.5–3.6{\%}) and YBaMn 2 O 6 (2.4–7.4{\%}) phases were detected. FESEM images and EDX analysis showed the presence of agglomerated particulates related to Mn and Ho based phases residing in between the Y-123 grains. The superconducting behavior was significantly enhanced at x = 0.0025 while there was no major depression noticed in critical temperature (T c-R=0 ) as the addition increased till x = 0.03 (T c-R=0 = 88 K). AC susceptibility curves of composites samples manifested sharp transitions for samples with x = 0.0025 and 0.005. Dielectric parameters ε r ′ and ε r ′ʹ decreased as the frequency increased for all samples. The ε r versus frequency measurements showed increment in ε r ′ and ε r ′ʹ values for all added samples as compared to Y-123 sample. The highest values for ε r ′ and ε r ′ʹ were obtained for sample x = 0.05 with the highest loss at lower frequency. The Nyquist plots of complex impedance were analyzed where two semi-arc circulars represent grain and grain boundary effect were deduced.",
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author = "Abdalla Bahboh and Shaari, {Abdul Halim} and Hussein Baqiah and Kien, {Chen Soo} and Kechik, {Mohd Mustafa Awang} and Wahid, {Mohd Haniff} and {Abd. Shukor}, Roslan and Talib, {Zainal Abidin}",
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AU - Bahboh, Abdalla

AU - Shaari, Abdul Halim

AU - Baqiah, Hussein

AU - Kien, Chen Soo

AU - Kechik, Mohd Mustafa Awang

AU - Wahid, Mohd Haniff

AU - Abd. Shukor, Roslan

AU - Talib, Zainal Abidin

PY - 2019/1/1

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N2 - (YBa 2 Cu 3 O 7–δ ) 1-x (HoMnO 3 ) x (x = 0.0, 0.0025, 0.005, 0.01, 0.03 and 0.05) ceramics were fabricated by introducing co-precipitation synthesized HoMnO 3 (HMO) nanoparticles during solid state reaction process of YBa 2 Cu 3 O 7–δ (Y-123) superconductors. (Y-123) 1-x (HMO) x samples were characterized using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) attached with energy Dispersive X-ray spectrometer (EDX), four-point probe measurement, AC susceptometer and impedance analyzer. Majority of XRD patterns were indexed to orthorhombic Y-123 phase. Besides, YBaMn 2 O 5 (1.5–3.6%) and YBaMn 2 O 6 (2.4–7.4%) phases were detected. FESEM images and EDX analysis showed the presence of agglomerated particulates related to Mn and Ho based phases residing in between the Y-123 grains. The superconducting behavior was significantly enhanced at x = 0.0025 while there was no major depression noticed in critical temperature (T c-R=0 ) as the addition increased till x = 0.03 (T c-R=0 = 88 K). AC susceptibility curves of composites samples manifested sharp transitions for samples with x = 0.0025 and 0.005. Dielectric parameters ε r ′ and ε r ′ʹ decreased as the frequency increased for all samples. The ε r versus frequency measurements showed increment in ε r ′ and ε r ′ʹ values for all added samples as compared to Y-123 sample. The highest values for ε r ′ and ε r ′ʹ were obtained for sample x = 0.05 with the highest loss at lower frequency. The Nyquist plots of complex impedance were analyzed where two semi-arc circulars represent grain and grain boundary effect were deduced.

AB - (YBa 2 Cu 3 O 7–δ ) 1-x (HoMnO 3 ) x (x = 0.0, 0.0025, 0.005, 0.01, 0.03 and 0.05) ceramics were fabricated by introducing co-precipitation synthesized HoMnO 3 (HMO) nanoparticles during solid state reaction process of YBa 2 Cu 3 O 7–δ (Y-123) superconductors. (Y-123) 1-x (HMO) x samples were characterized using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) attached with energy Dispersive X-ray spectrometer (EDX), four-point probe measurement, AC susceptometer and impedance analyzer. Majority of XRD patterns were indexed to orthorhombic Y-123 phase. Besides, YBaMn 2 O 5 (1.5–3.6%) and YBaMn 2 O 6 (2.4–7.4%) phases were detected. FESEM images and EDX analysis showed the presence of agglomerated particulates related to Mn and Ho based phases residing in between the Y-123 grains. The superconducting behavior was significantly enhanced at x = 0.0025 while there was no major depression noticed in critical temperature (T c-R=0 ) as the addition increased till x = 0.03 (T c-R=0 = 88 K). AC susceptibility curves of composites samples manifested sharp transitions for samples with x = 0.0025 and 0.005. Dielectric parameters ε r ′ and ε r ′ʹ decreased as the frequency increased for all samples. The ε r versus frequency measurements showed increment in ε r ′ and ε r ′ʹ values for all added samples as compared to Y-123 sample. The highest values for ε r ′ and ε r ′ʹ were obtained for sample x = 0.05 with the highest loss at lower frequency. The Nyquist plots of complex impedance were analyzed where two semi-arc circulars represent grain and grain boundary effect were deduced.

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KW - Critical temperature

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