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Issue Date	Title	Author(s)
2019-06-24	Synthesis and Thermal Characterization of NZP Compounds Na1-Xlixzr2(Po4)3(X= 0.00-0.75)	Ahmadu, U.; A.S., Yusuf
2015	Spatial variability of VHF FM radio signals with surface refractivity values in Niger State, Nigeria	J.O. Eichie, O.D. Oyedum, M.O. Ajewole, A.T. Adediji,; K. C. Igwe; A. S. Moses
2013-08	IMPEDANCE SPECTROSCOPY OF SUPERIONIC CONDUCTORS II: MEASUREMENT AND STUDIES	Ahmadu, U.,; A. O., Musa; .U.Isah, K.
2017-04	LiSn1.6Ti0.4(PO4) ceramic powder was synthesized via solid state reaction and investigated for electrical and dielectric properties for use as solid electrolyte. X-ray diffraction shows that it has rhombohedral R3 ̅c NASICON-type structure with unreacted phase of SnO2. Impedance study in the temperature range 300 to 740 K and frequency range 300 kHz-3 GHz were carried out together with dielectric permittivity studies under the same conditions. The determined bulk and grain boundary conductivities are 1.39 x 10-3 S/cm and 3.39 x 10-4 S/cm at 740 K, respectively, while their corresponding room temperature conductivities are 6.31 x 10-6 S/cm and 1.72 x 10-6 S/cm, respectively. Activation energies determined from Arrhenius plot are 0.67 eV and 0.78 eV for bulk and grain boundary, respectively. The determined dielectric constant ε^' has a value of 40 at 303 K and reached a maximum of 1790 at 740 K, which is high compared to most reported values for NASICON and indicate that LiSn1.6Ti0.4(PO4) could be a promising candidate for application as solid electrolyte at elevated temperatures	.Ahmadu, . Umaru; Uthman Isah, Kasim; Abdullahi, Mann; O.Ibrahim, S; Mohammed Isa, Kimpa
2017-09	Analysis of Structure, Microstructure and Chemical Composition of Solid Solution of Co-Doped Barium Calcium Stannate Titanate	Ahmadu, U.; M.I., Abdullahi; B.Usman, Abdulwaliyu; E.E., Uno; Agida, Moses
2017-12-12	BULK GERMANIUM OPTICAL PROPERTIES: THE EFFECTS OF EXTINCTION/ABSORPTION COEFFICIENTS AND CRYSTAL MOMENTUM IN THE INFRARED REGION	Mohammed, Isah Kimpa
2017-09-01	IMPEDANCE, DIELECTRIC AND MODULUS STUDY OF Ti-doped LiSn2(PO4)3	Mohammed, Isah Kimpa; Ahmadu, Umar; Uthman, Isah Kasim; Mann, Abdullah; Ibrahim, Sharifat O.
2012-11-01	Probing into earth surface to determine the suitability of formation for building and engineering works in paiko and its environs	Mohammed, Isah Kimpa; Alhassan, Usman Defyan
2020-07-02	The Study of diurnal and seasonal refractivity variations and its influence on VHF and UHF signal field strength profile of lapai	Mohammed, Isah Kimpa; Oyedum, O.D
2015-01-10	Electrical Resistivity Survey For ground water At Eye Zheba Village, Off Bida- Minna Road	Mohammed, Isah Kimpa; Alhassan, Usman Defyan
2017-09	Impedance, dielectric and modulus study of Ti-doped LiSn2(PO4)3	Ahmadu, U.; .U.Isah, K.; A, .Mann; M.I., .Kimpa; .O. Ibrahim, S.
2018	Thermal behavior of al substituted LiTi2(PO4)3 nasicon compounds.	Zangina, Tasiu; Hassan, Jumiah Raba’ah Syahidah Azis, Khamirul Amin Matori,Umaru Ahmadu, Chifu Ebenezar Ndikilar and Makiyyu Abdullahi Musa; Syahidah Azis, Raba’ah; Amin Matori, Khamirul; Ahmadu, Umaru; Ebenezar Ndikilar, Chifu; Abdullahi Musa, Makiyyu
2018-09	. SYNTHESIS AND ELECTROCHEMISTRY OF 3D NAXSNO1-X/G (0.3≤x≤0.4) COMPOSITE ELECTRODE FOR SUPERCAPACITOR APPLICATION.	M., Alpha; .U.E., Uno.; Isah K, U.; Ahmadu, U.
2019-11	Photon transmission factor for granite and polyboron laminated concrete walls	Oche, C.O.; Olarinoye I., O.; Ahmadu, U.
2019-10	Structural Characterisation of synthesized Reduced graphen Oxide (Rgo) using an improved modified Hummer’s Method for opto-electrocnics Applications	U M., Alpha; U.E., Uno; Isah K., U.; Ahmadu, .U.
2019-06	Structural, Microstructural and UV-Vis spectroscopy studies of Gamma–irradiated starch from Dioscorea Rotundata,	A., Umaru; Ndakpayi, H. M.; Isah K, U.; Agida, M.; M., Bature,
2016-10-06	Sintering behavior, ac conductivity and dielectric relaxation of Li1.3Ti1.7Al0.3(PO4)3 NASICON compound	Zangina, Tasiu; Hassan, Juniah; Amin Matori, Khamirul; Syahidah Azis, Raba'a; Ahmadu, Umaru; See, Alex
2013-01	Effect of different copper precursor layer thickness on properties of Cu2ZnSnS4 (CZTS) thin films prepared by sulfurization of thermally deposited stacked metallic layers	Uthman Isah, Kasim; Alhaji Yabagi, Jibrin; Ahmadu, Umaru; Isah Kimpa, Mohammed; Getan Zebaze Kana, Martiale; Aghagbudutema Oberafo, Anthony
2016-06-18	Plasmonic effect of silver nanoparticles intercalated into mesoporous betalain-sensitized-TiO2 film electrodes on photovoltaic performance of dye-sensitized solar cells	U. Isah, Kasim; J. Jolayemi, Bukola; Ahmadu, Umaru; Isah Kimpa, Mohammed; Alu, Noble
2016-06-23	Structure, phase transition and impedance of Zn12xLixO (0.10 £ x £ 0.70) ceramic	Ahmadu, Umaru; Temitope Salaudeen, Islamiyat