P. Somasundaram

A reliable and simple method for identifying at start patients with tuberculosis of the spine suitable for ambulatory chemotherapy (2006)

Sriram, K, Somasundaram, P, Parthasarathy, R, Chandrasekaran, V

Effect of Lanthanum Substitution at the Barium Site on the Mechanical Behaviour in YBCO Superconductor (1993)

Asif, Syed SA, Somasundaram, P, Umarji, AM, Biswas, SK

The lanthanum substituted superconducting oxide system $Yba_{2 - x}La_xCu_3O_{7 - \delta}$ is prepared by ceramic method. The compacted and sintered pellets containing different percentages of $La (x...

Effect of Lanthanum Substitution at the Barium Site on the Mechanical Behaviour in YBCO Superconductor (1993)

Asif, Syed SA, Somasundaram, P, Umarji, AM, Biswas, SK

The lanthanum substituted superconducting oxide system $Yba_{2 - x}La_xCu_3O_{7 - \delta}$ is prepared by ceramic method. The compacted and sintered pellets containing different percentages of $La (x...

Superconducting cuprates of the series $Bi_2Ca_{1-x}Ln_xSr_2Cu_2O_{8+\delta}$ (Ln=rare earth or Y) (1990)

Rao, CNR, Nagarajan, R, Vijayaraghavan, R, Vasanthacharya, NY, Kulkarni, GV, Umarji, AM, ...

A systematic investigation of the properties of the series $Bi_2Ca_{1-x}Ln_xSr_2Cu_2O_{8+\delta}$ (Ln-rare earth or Y) of superconducting cuprates has been carried out by employing a variety of...

Synthesis and characterization of superconducting $YbBa_2Cu_3O_{7-\delta}$ and $Y_{1-x}Lu_xBa_2Cu_3O_{7-\delta}$ (0.0 < x < 0.75): Lower limit of the rare-earth ion radius tolerated in the 123 cuprate system (1990)

Somasundaram, P, Ram, Mohan A, Umarji, AM, Rao, CNR

$YbBa_2Cu_3O_{7-\delta}$ with a $T_c$ (zero-resistance) of 89K has been prepared without contamination of $Yb_2BaCuO_5$. Monophasic $LuBa_2Cu_3O_{7-\delta}$ cannot be prepared. Solid solutions of the...

Synthesis and characterization of superconducting $YbBa_2Cu_3O_{7-\delta}$ and $Y_{1-x}Lu_xBa_2Cu_3O_{7-\delta}$ (0.0 (1990)

Somasundaram, P, Ram, Mohan A, Umarji, AM, Rao, CNR

$YbBa_2Cu_3O_{7-\delta}$ with a $T_c$ (zero-resistance) of 89K has been prepared without contamination of $Yb_2BaCuO_5$. Monophasic $LuBa_2Cu_3O_{7-\delta}$ cannot be prepared. Solid solutions of the...

Superconducting cuprates of the series $Bi_2Ca_{1-x}Ln_xSr_2Cu_2O_{8+\delta}$ (Ln=rare earth or Y) (1990)

Rao, CNR, Nagarajan, R, Vijayaraghavan, R, Vasanthacharya, NY, Kulkarni, GV, Umarji, AM, ...

A systematic investigation of the properties of the series $Bi_2Ca_{1-x}Ln_xSr_2Cu_2O_{8+\delta}$ (Ln-rare earth or Y) of superconducting cuprates has been carried out by employing a variety of...

Effect of Sb substitution on the superconductivity of $Bi_2 (Ca, Sr)_{n+1} Cu_n O_{4+2}$ (n = 1, 2 and 3) systems (1990)

Somasundaram, P, Umarji, AM

Effect of incorporation of Sb in place of Bi in the bismuth cuprate superconductors has been examined. The nominal compositions studied are $MCa_{1.5}Sr_{1.5}Cu_2 O_{8+\delta}$, and $MCa_2 Sr_2 Cu_3...

Synthesis and characterization of superconducting $YbBa_2Cu_3O_{7-\delta}$ and $Y_{1-x}Lu_xBa_2Cu_3O_{7-\delta}$ (0.0 (1990)

Somasundaram, P, Ram, Mohan A, Umarji, AM, Rao, CNR

$YbBa_2Cu_3O_{7-\delta}$ with a $T_c$ (zero-resistance) of 89K has been prepared without contamination of $Yb_2BaCuO_5$. Monophasic $LuBa_2Cu_3O_{7-\delta}$ cannot be prepared. Solid solutions of the...

Synthesis and characterization of superconducting $YbBa_2Cu_3O_{7-\delta}$ and $Y_{1-x}Lu_xBa_2Cu_3O_{7-\delta}$ (0.0 < x < 0.75): Lower limit of the rare-earth ion radius tolerated in the 123 cuprate system (1990)

Somasundaram, P, Ram, Mohan A, Umarji, AM, Rao, CNR

$YbBa_2Cu_3O_{7-\delta}$ with a $T_c$ (zero-resistance) of 89K has been prepared without contamination of $Yb_2BaCuO_5$. Monophasic $LuBa_2Cu_3O_{7-\delta}$ cannot be prepared. Solid solutions of the...

Effect of Sb substitution on the superconductivity of $Bi_2 (Ca, Sr)_{n+1} Cu_n O_{4+2}$ (n = 1, 2 and 3) systems (1990)

Somasundaram, P, Umarji, AM

Effect of incorporation of Sb in place of Bi in the bismuth cuprate superconductors has been examined. The nominal compositions studied are $MCa_{1.5}Sr_{1.5}Cu_2 O_{8+\delta}$, and $MCa_2 Sr_2 Cu_3...

Structure and superconducting properties of $YBa_{2-x}Ln_xCu_3O_{7\pm\delta}$ (Ln = La, Nd or Gd) and $(Ln,Ln')_{3−x}Ba_{3+x}Cu_6O_{14+\delta}$ (1988)

Somasundaram, P, Nanjundaswamy, KS, Umarji, AM, Rao, CNR

In $YBa_{2-x}Ln_xCu_30_{7\pm\delta}$ (Ln = La, Nd or Gd), the structure becomes tetragonal with increase in x and the $T_c$ of the orthorhombic phase decreases with x. Members of...

Structure and superconducting properties of $YBa_{2-x}Ln_xCu_3O_{7\pm\delta}$ (Ln = La, Nd or Gd) and $(Ln,Ln')_{3−x}Ba_{3+x}Cu_6O_{14+\delta}$ (1988)

Somasundaram, P, Nanjundaswamy, KS, Umarji, AM, Rao, CNR

In $YBa_{2-x}Ln_xCu_30_{7\pm\delta}$ (Ln = La, Nd or Gd), the structure becomes tetragonal with increase in x and the $T_c$ of the orthorhombic phase decreases with x. Members of...