Spectrophotometric determination of Nimesulide. (1998)
Narayana, R, Sasira, R, Gowri, S, Sreedhar, K, Reddy, M, Reddy, K
Electrical resistivity, magnetic susceptibility, thermogravimetric analysis, and infrared absorption spectra of the compound $La_{2-x}Sr_xCuO_{4-\delta}$ have been studied for a wide range of $Sr$...
Electrical resistivity, magnetic susceptibility, thermogravimetric analysis, and infrared absorption spectra of the compound $La_{2-x}Sr_xCuO_{4-\delta}$ have been studied for a wide range of $Sr$...
Sreedhar, K, Ramakrishnan, TV, Rao, CNR
The superconducting Tc in the various $Cu$ oxides shows a broad maximum at a certain value of the nominal $Cu^3^+/Cu^2^+$ ratio. The significance of this important feature is discussed and a model...
High-$T_c$ superconductivity in perovskite oxides of the Y-Ba-Cu-O system (1987)
Mohanram, RA, Sreedhar, K, Raychaudhuri, AK, Ganguly, P, Rao, CNR
Several biphasic compositions of the type $Y_{3-x}Ba_{3+x}Cu_6O_{14}$ show an onset of superconductivity in the 90-115K range, attaining zero resistance in the 70-85K range. The phase responsible for...
Superconductivity in La-Sr(Ba)-Cu-O and related systems (1987)
Ganguly, P, Ram, Mohan RA, Sreedhar, K, Rao, CNR
Systematics in the superconducting behavior of $Ln_{2-x}Sr_x(Ba_x)CuO_4$, $La_{2-x}Sr_{x-y}Ba_y(Ca_y)CuO_4$, ${(La_{1-x}Ln_x)}_{2-y}Sr_y(Ba_y)CuO_4$ with Ln = Pr, Nd or Y and related systems are...
Rao, CNR, Ganguly, P, Raychaudhuri, AK, Ram, Mohan RA, Sreedhar, K
The discovery of $La-Ba(Sr)-Cu$ oxides of $K_2NiF_4$ structure exhibiting superconductivity in the 30-40 K region was reported early this year. The recent announcement of superconductivity above the...
Ganguly, P, Ram, Mohan RA, Sreedhar, K, Rao, CNR
The oxide responsible for high-temp. supercond. (onset .apprx.100 K, zero resistance above liq. N2 temp.) is {(YBa_2Cu_3O)_7 _\pm _\delta}
Photoemission studies of the high $T_c$ superconductor, $(YBa_2Cu_3O_7)$ (1987)
Sarma, DD, Sreedhar, K, Ganguly, P, Rao, CNR
Considerable changes are observed in the spectra of the valence band and O(ls) regions in $YBa_2Cu_3O_7$, when the temperature is lowered from 300K to 80K. The results are interpreted in terms of a...
High-$T_c$ superconductivity in perovskite oxides of the Y-Ba-Cu-O system (1987)
Mohanram, RA, Sreedhar, K, Raychaudhuri, AK, Ganguly, P, Rao, CNR
Several biphasic compositions of the type $Y_{3-x}Ba_{3+x}Cu_6O_{14}$ show an onset of superconductivity in the 90-115K range, attaining zero resistance in the 70-85K range. The phase responsible for...
Superconductivity in La-Sr(Ba)-Cu-O and related systems (1987)
Ganguly, P, Ram, Mohan RA, Sreedhar, K, Rao, CNR
Systematics in the superconducting behavior of $Ln_{2-x}Sr_x(Ba_x)CuO_4$, $La_{2-x}Sr_{x-y}Ba_y(Ca_y)CuO_4$, ${(La_{1-x}Ln_x)}_{2-y}Sr_y(Ba_y)CuO_4$ with Ln = Pr, Nd or Y and related systems are...
Ganguli, AK, Ganapathi, L, Sreedhar, K, Mohanram, RA, Ganguly, P, Rao, CNR
Superconductivity is found in tetragonal $La_3-xBa_3+xCu_6O_14+\delta$ and $(La, Ba)6-xSrxCu_6O_14+\delta$ even though these compds. do not possess $Cu$-$O$ chains or the $K_2NiF_4$ structure....
Raychaudhuri, AK, Sreedhar, K, Rajeev, KP, Ram, Mohan RA, Ganguly, P, Rao, CNR
The perovskites $Y_0.75La_0.25Ba_2Cu_3O_7$ and $Y_0.75Lu_0.25Ba_2Cu_3O_7$ show high-Tc supercond. (with zero resistance at or 80 K), just as the parent compound. $YBa_2Cu_3O_7$. The Lu-substituted...
Ganguly, P, Raychaudhuri, AK, Sreedhar, K, Rao, CNR
In the wake of the sensational high $T_c$ oxide superconductors discovered recently (Uchida et al; Cava et al l987; Chu et al 1987; Rao and Ganguly 1987), we have been investigating several oxides in...
Sreedhar, K, Ramakrishnan, TV, Rao, CNR
The superconducting Tc in the various $Cu$ oxides shows a broad maximum at a certain value of the nominal $Cu^3^+/Cu^2^+$ ratio. The significance of this important feature is discussed and a model...
Rao, CNR, Ganguly, P, Raychaudhuri, AK, Ram, Mohan RA, Sreedhar, K
The discovery of $La-Ba(Sr)-Cu$ oxides of $K_2NiF_4$ structure exhibiting superconductivity in the 30-40 K region was reported early this year. The recent announcement of superconductivity above the...
Ganguly, P, Ram, Mohan RA, Sreedhar, K, Rao, CNR
The oxide responsible for high-temp. supercond. (onset .apprx.100 K, zero resistance above liq. N2 temp.) is {(YBa_2Cu_3O)_7 _\pm _\delta}
Rao, CNR, Ganguly, P, Sreedhar, K, Ram, Mohan RA, Sarode, PR
Thermogravimetry and Cu "K-absorption edge measurements show that the superconducting $YBa_2Cu_30_7$ sample (annealed in $0_2$) contains more oxygen than the nonsupe conducting sample annealed...
Sarma, DD, Sreedhar, K, Ganguly, P, Rao, CNR
Photoemission spectra of $YBa_2Cu_3O_{7-\delta}$ in the normal and superconducting states provide direct evidence for dimerization of Oxygen below $T_c$. $Cu^{2+}$ reduces to $Cu^{1+}$ concomitantly....
Ganguli, AK, Ganapathi, L, Sreedhar, K, Mohanram, RA, Ganguly, P, Rao, CNR
Superconductivity is found in tetragonal $La_3-xBa_3+xCu_6O_14+\delta$ and $(La, Ba)6-xSrxCu_6O_14+\delta$ even though these compds. do not possess $Cu$-$O$ chains or the $K_2NiF_4$ structure....
Photoemission studies of the high $T_c$ superconductor, $(YBa_2Cu_3O_7)$ (1987)
Sarma, DD, Sreedhar, K, Ganguly, P, Rao, CNR
Considerable changes are observed in the spectra of the valence band and O(ls) regions in $YBa_2Cu_3O_7$, when the temperature is lowered from 300K to 80K. The results are interpreted in terms of a...
Ganguly, P, Raychaudhuri, AK, Sreedhar, K, Rao, CNR
In the wake of the sensational high $T_c$ oxide superconductors discovered recently (Uchida et al; Cava et al l987; Chu et al 1987; Rao and Ganguly 1987), we have been investigating several oxides in...
Raychaudhuri, AK, Sreedhar, K, Rajeev, KP, Ram, Mohan RA, Ganguly, P, Rao, CNR
The perovskites $Y_0.75La_0.25Ba_2Cu_3O_7$ and $Y_0.75Lu_0.25Ba_2Cu_3O_7$ show high-Tc supercond. (with zero resistance at or 80 K), just as the parent compound. $YBa_2Cu_3O_7$. The Lu-substituted...
Rao, CNR, Ganguly, P, Sreedhar, K, Ram, Mohan RA, Sarode, PR
Thermogravimetry and Cu "K-absorption edge measurements show that the superconducting $YBa_2Cu_30_7$ sample (annealed in $0_2$) contains more oxygen than the nonsupe conducting sample annealed...
Sarma, DD, Sreedhar, K, Ganguly, P, Rao, CNR
Photoemission spectra of $YBa_2Cu_3O_{7-\delta}$ in the normal and superconducting states provide direct evidence for dimerization of Oxygen below $T_c$. $Cu^{2+}$ reduces to $Cu^{1+}$ concomitantly....
Modeling of burst noise and burst error rates in mine data communication systems. (1982)
Thesis (M.S.)--University of Oklahoma, 1982.