• Thermoelectric power of (Cu0.5Tl0.5)-1223 superconducting phase added with BaSnO3 nanoparticles 

  Srour, A.; Malaeb, W.; Marhaba, S.; Awad, R. (Institute of Physics Pub., 2017)

  In this study, we report the thermoelectric power (TEP) measurements of Cu0.5Tl0.5Ba2Ca2Cu3O10-δ added with BaSnO3 nanoparticles. BaSnO3 nanoparticles were prepared by chemical co-precipitation method, while (BaSnO3)x/(CuT1)-1223 ...
• High-Tc superconductivity: from basic research to useful applications 

  Malaeb, Walid; Ishida, Yukiaki; Okazaki, Kozo; Ota, Yuuichi; Shin, Sik (Hamad bin Khalifa University Press, 2012-10)

  Background: Superconductivity is the complete loss of electric resistance in some elements and compounds cooled below a transition temperature (Tc). Since its discovery more than 100 years ago, this phenomenon has enriched ...
• Temperature dependence of the chemical potential in La2-xSrxCuO4 

  Malaeb, W.; Yoshida, T.; Hashimoto, M.; Takizawa, M.; Ebata, K.; Fujimori, A.; Eisaki, H.; Kakeshita, T.; Sasagawa, T.; Uchida, S. (Institute of Physics Pub., 2008)

  We have performed x-ray photoemission spectroscopy (XPS) measurements on the high-Tc superconductor La2-xSrxCuO4 (LSCO) at various temperatures. From the shifts of core-level spectra, we have deduced the temperature ...
• Effect of the partial replacement of Ca by alkaline element Na on Tl-1223 superconductor 

  Awad, R.; Abou-Aly, A. I.; Isber, S.; Malaeb, W. (Institute of Physics Pub., 2006)

  We have investigated the effect of Na substitution at Ca sites on the lattice parameters, electrical resistivity, magnetic susceptibility and thermopower coefficient for TlBa2Ca2-xNaxCu3O9-δ; with 0 ⩽ x ⩽ 0.4. The lattice ...
• ESR Investigations of (BaSnO3)x/(Cu, Tl) 1223 composite in the normal and superconducting state 

  Srour, A.; Basma, H. (2021-05-21)

  (BaSnO3)x/Cu0.5Tl0.5Ba2Ca2Cu3O10-δ superconducting composites (0.00 ≤ x ≤ 1.50 wt.%) were prepared by the solid-state reaction technique. The crystalline structure and superconducting transition temperature were investigated ...
• Investigating the role of diamagnetic Cd2+ ions on the structural, optical, and magnetic properties of YIG 

  Assi, B.; Bitar, Z.; Malaeb, W.; Hassan, R. Sayed; Yaacoub, N.; Awad, R. (2021-05-14)

  In this study, Y3-xCdxFe5O12 (0.0 ≤ × ≤0.2) powders were synthesized via the co-precipitation method at calcination temperature 1100 °C. The phase formation of YIG was confirmed from X-ray powder diffraction (XRD) and ...
• Synthesis and characterization of ZnO nanoparticles for dental applications: Improving the mechanical properties of the temporary dental filling materials 

  Srour, A.; Jaber, A.; Yassin, A.; Srour, Z.; Harajli, Z.; Isber, S.; Malaeb, W. (2025-01-17)

  We investigate the effect of ZnO nanoparticles (ZnO-N) mainly on the mechanical properties of zinc oxide eugenol (ZOE) cements compared to the commercially available bulk ZnO powder (ZnO-B). Our results revealed the ...
• Comparative study of structural and superconducting properties of (Cu0.5Tl0.5)Ba2Ca2Cu3O10-δ phase substituted by copper fluoride and thallium fluoride 

  Kamar, A.; Srour, A.; Roumié, M.; Malaeb, W.; Awad, R.; Khalaf, A. (2021-07-05)

  A series of (Cu0.5−xTl0.5−y)-1223 superconductor samples, doped with varying amounts of (CuF2)x and (TlF)y compounds with x = y = 0.0, 0.1, 0.2, 0.3 and 0.4, were synthesized via a single-step solid-state reaction. X-ray ...
• Dielectric Properties of Y3Fe5O12 (YIG) Prepared at Different Molarities of NaOH 

  Assi, B.; Bitar, Z.; Malaeb, W.; Awad, R. (2020)

  In this study, Yttrium Iron Garnet (Y3Fe5O12) (YIG) powders were synthesized via co-precipitation method, followed by calcining the precipitates at 1100˚C. The garnets produced were obtained from aqueous iron and yttrium ...
• Investigations of arsenic substitution on the physical, electrical and magnetic properties of Bi-2212 superconductors 

  Labban, W.; Malaeb, W.; Habanjar, K.; Hassan, M. S.; Sakagami, R.; Kamihara, Y.; Awad, R. (2020-10)

  The effect of Arsenic substitution on the properties of Bi-2212 superconductors was studied. Solid-state reaction technique was used for the synthesis of Bi2−xAsxSr2Ca1.1Cu2.1O8 samples, x = 0, 0.1, 0.2 and 0.4. The X-ray ...
• Calculation of Net Emission Coefficient for High Intensity Discharge Lamps 

  Al Youssif, Rawan; Sahab, Antoine; Zissis, Georges; Malaeb, Walid; Hamady, Mohamad (2020)

  There is still great interest in studying high intensity discharge (HID) lamps despite the great development of other light sources like light emitting diodes (LEDs). Basic equations and numerical formulations allow ...
• Electronic structure of the iron-based superconductor (La,Eu)FeAsO1-xFx investigated by laser photoemission spectroscopy 

  Malaeb, Walid; Awad, Ramadan; Hibino, Taku; Kamihara, Yoichi; Kondo, Takeshi; Shin, Shik (2018-05-01)

  We have implemented laser photoemission spectroscopy (PES) to investigate the electronic structure of the iron-based superconductor (La,Eu)FeAsO1-xFx (LaEu1111) which is an interesting compound in the “1111” family showing ...
• Improvement of the Superconducting Properties of GdBa2Cu3O7-δ with Nano-Sized Ferrite Addition 

  Malaeb, W.; Basma, H.; Awad, R.; Hibino, T.; Kamihara, Y. (2019-10)

  We have been investigating the effect of (CoFe2O4)x and (ZnFe2O4)x (x is the wt%) nano-sized ferrites on the superconducting (SC) properties of the high-Tc SC compound GdBa2Cu3O7-δ (Gd123) prepared by the conventional ...
• Multiple-pseudogap phases in the hydrogen-doped LaFeAsO system 

  Nakamura, A.; Shimojima, T.; Sonobe, T.; Yoshida, S.; Ishizaka, K.; Malaeb, W.; Shin, S.; Iimura, S.; Matsuishi, S. (2017-02)

  The low-energy electronic structure of LaFeAs⁢O1−𝑥⁢H𝑥 (0.0≤𝑥≤0.60), a system which exhibits two superconducting domes and antiferromagnetic orders in its phase diagram, is investigated by utilizing laser photoemission ...
• Physical Properties of (BaSnO _ 3) _ x/Cu _ 0.5 Tl _ 0.5 Ba _ 2 Ca _ 2 Cu _ 3 O _ 10-δ (BaSnO 3) x/Cu 0.5 Tl 0.5 Ba 2 Ca 2 Cu 3 O 10-δ Superconductor Composite 

  Srour, A.; Awad, R.; Malaeb, W.; Barakat, M. ME. (2017-11)

  The influence of barium tin oxide nanoparticles addition on the structural and superconducting properties of the Cu_{0.5}Tl_{0.5}Ba2Ca2Cu3O_{10{-}δ } phase, (CuTl)-1223, was studied. A different wt% of BaSnO3, ranging from ...
• Mechanical properties of the (BaSnO3)x/Cu0.5Tl0.5Ba2Ca2Cu3O10−δ superconductor phase 

  Srour, A.; Malaeb, W.; Rekaby, M.; Awad, R. (2017-09-13)

  In this study, we carried out the Vickers microhardness for Cu0.5Tl0.5Ba2Ca2Cu3O10−δ, (Cu0.5Tl0.5)-1223 superconducting phase added with BaSnO3 nanoparticles. BaSnO3 nanoparticles were prepared by the co-precipitation ...
• Investigation of the Mechanical Properties of GdBa2Cu3O7−δ Added with Nanosized Ferrites ZnFe2O4 and CoFe2O4 Using Ultrasonic Measurement 

  Malaeb, Walid; Basma, Hadi; Barakat, M. ME.; Awad, Ramadan (2017-12)

  Recently, there is much interest in studying the effect of nanosized ferrites addition on high- T c superconductors. However, little information is available on the mechanical properties. We have investigated the effect ...
• Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors 

  Shimojima, Takahiro; Malaeb, Walid; Nakamura, ,Asuka; Kondo, Takeshi; Kihou, Kunihiro; Lee, Chul-Ho; Iyo, Akira; Eisaki, Hiroshi; Ishida, Shigeyuki (2017-08-25)

  A major problem in the field of high-transition temperature (Tc) superconductivity is the identification of the electronic instabilities near superconductivity. It is known that the iron-based superconductors exhibit ...
• Coexistence of a pseudogap and a superconducting gap for the high−𝑇𝑐 superconductor La2−𝑥⁢Sr𝑥⁢CuO4 studied by angle-resolved photoemission spectroscopy 

  Yoshida, T.; Malaeb, W.; Ideta, S.; Lu, D. H.; Moor, R. G.; Shen, Z.-X.; Okawa, M.; Kiss, T.; Ishizaka, K. (2016-01-19)

  The relationship between the superconducting gap and the pseudogap has been the subject of controversies. In order to clarify this issue, we have studied the superconducting gap and pseudogap of the high−𝑇𝑐 superconductor ...
• Spin texture in type-II Weyl semimetal WTe2 

  Feng, Baojie; Chan, Yang-Hao; Feng, Ya; Liu, Ro-Ya; Chou, Mei-Yin; Kuroda, Kenta; Yaji, Koichiro; Harasawa, Ayumi; Moras, Paolo (2016-11-18)

  We determine the band structure and spin texture of WTe2 by spin- and angle-resolved photoemission spectroscopy (SARPES). With the support of first-principles calculations, we reveal the existence of spin polarization of ...

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