Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Nor Azah Nik-Jaafar"'
Publikováno v:
Sains Malaysiana. 51:3095-3101
Modulus ricih dan atenuasi ultrasonik superkonduktor suhu tinggi terdop sederhana (Tl0.8Bi0.2)Sr2(Ca0.9Cr0.1)Cu2O7 (Tl-1212) dengan suhu genting (Tc ) 98 K telah dikaji. Modulus ricih, G meningkat apabila suhu diturunkan daripada 240 K ke 80 K yang m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64cc4ab24d6aba6aa81d4f4b48208102
https://doi.org/10.17576/jsm-2022-5109-28
https://doi.org/10.17576/jsm-2022-5109-28
Publikováno v:
Solid State Phenomena. 317:10-16
The effect of Fe-substitution at the Mn-site in La0.7Ca0.3Mn1-xFexO3 (x = 0, 0.01, 0.03 and 0.05) on its structure, electrical and magnetic properties has been studied. These properties were investigated via X-ray diffraction (XRD) analysis, temperat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21739b341563c254321729f1f8fa3c07
https://doi.org/10.4028/www.scientific.net/ssp.317.10
https://doi.org/10.4028/www.scientific.net/ssp.317.10
Autor:
Roslan Abd-Shukor, Nor Azah Nik-Jaafar
Publikováno v:
Sains Malaysiana. 47:1907-1911
The effects of mixed-valence Mn substitution at the Cu site on the superconducting and elastic properties of La1.85-1.5xSr0.15+1.5xCu1-xMnxO4 (x = 0, 0.02 and 0.04) were studied. The samples were characterized by X-ray diffraction (XRD) method, tempe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c45b671c34f1844061cb559be504f2b
https://doi.org/10.17576/jsm-2018-4708-32
https://doi.org/10.17576/jsm-2018-4708-32
Publikováno v:
Advanced Materials Research. 895:91-94
The effect of Pr-substitution at the Eu-site on the superconductivity and transport properties in Eu1-xPrxBaSrCu3O7-d (x = 0.0, 0.1, 0.2, 0.4, 0.5) has been investigated. Tc onset for x = 0.0, 0.1, 0.2, 0.4, 0.5 are 86 K, 75 K, 65 K, 38 K, 27 K, resp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe6554854f36fc0de2207ff608ea660c
https://doi.org/10.4028/www.scientific.net/amr.895.91
https://doi.org/10.4028/www.scientific.net/amr.895.91
Publikováno v:
Advanced Materials Research. 501:304-308
We investigated the elastic properties of MgB2 and 5 wt.% SiC-doped MgB2 superconductors utilizing the pulse-echo overlap technique. Longitudinal and shear ultrasound velocities were measured for each sample at 80 K and 300 K. The measured velocities
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac80c7aef1c59b291abd956a4b49aa58
https://doi.org/10.4028/www.scientific.net/amr.501.304
https://doi.org/10.4028/www.scientific.net/amr.501.304
Autor:
Roslan Abd-Shukor, Nor Azah Nik-Jaafar
Publikováno v:
Journal of Physics: Conference Series. 1083:012029
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fa85c070eca3651baf6139d2a0e0c10
https://doi.org/10.1088/1742-6596/1083/1/012029
https://doi.org/10.1088/1742-6596/1083/1/012029
Publikováno v:
Superconductor Science and Technology. 18:1365-1369
The temperature dependent sound velocity and ultrasonic attenuation of the non-superconducting and ferromagnetic superconductor RuSr2GdCu2O8 (Ru-1212) have been determined through the pulse-echo-overlap ultrasonic technique. The absolute elastic modu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06a81ac750f14afb7d66872f784b1f35
https://doi.org/10.1088/0953-2048/18/10/020
https://doi.org/10.1088/0953-2048/18/10/020
Autor:
Nor Azah Nik-Jaafar, Roslan Abd-Shukor
Publikováno v:
Current Applied Physics. 3:421-427
Pr-substituted (Dy1−xPrx)BaSrCu3O7−δ (x=0.0, 0.1, 0.2, 0.4 and 0.7) has been investigated for its superconducting and elastic properties. Structural transition from orthorhombic to tetragonal symmetry is observed at x=0.1. Temperature-dependent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc904721dee2ee44a6aba79c4440d535
https://doi.org/10.1016/s1567-1739(03)00105-6
https://doi.org/10.1016/s1567-1739(03)00105-6
Autor:
Nor Azah Nik Jaafar, Roslan Abd-Shukor
Publikováno v:
Physica B: Condensed Matter. 334:425-431
The colossal magnetoresistive material La 1− x Ca x MnO 3 with x =0.25, 0.33, and 0.45, was investigated through sound velocity and ultrasonic attenuation measurements. Lattice hardening was observed below T c (paramagnetic-ferromagnetic transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a6811ea0676a889bb42e42bdf480ae1
https://doi.org/10.1016/s0921-4526(03)00165-0
https://doi.org/10.1016/s0921-4526(03)00165-0
Autor:
Nor Azah Nik Jaafar, Roslan Abd-Shukor
Publikováno v:
Physics Letters A. 288:105-110
Ultrasonic longitudinal and shear wave velocities were measured for superconducting and non-superconducting DyBaSrCu3O7−δ (Dy-1113) at 10 MHz between 80 and 270 K. The superconducting sample exhibits a step-like elastic anomaly between 190 and 230
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3535f58277530932167dc2af4465c0e5
https://doi.org/10.1016/s0375-9601(01)00493-5
https://doi.org/10.1016/s0375-9601(01)00493-5