P. M. Shirage

Possible Multiple Gap Superconductivity with Line Nodes in Heavily Hole-Doped Superconductor KFe2As2 Studied by 75As-NQR and Specific Heat (2009)

Fukazawa, H., Yamada, Y., Kondo, K., Saito, T., Kohori, Y., Kuga, K., ...

We report the 75As nuclear quadrupole resonance (NQR) and specific heat measurements of the heavily hole-doped superconductor KFe2As2 (Tc = 3.5 K). The spin-lattice relaxation rate 1/T1 in the...

Strong-coupling Spin-singlet Superconductivity with Multiple Full Gaps in Hole-doped Ba$_{0.6}$K$_{0.4}$Fe$_2$As$_2$ Probed by Fe-NMR (2009)

Yashima, M., Nishimura, H., Mukuda, H., Kitaoka, Y., Miyazawa, K., Shirage, P. M., ...

We present $^{57}$Fe-NMR measurements of the novel normal and superconducting-state characteristics of the iron-arsenide superconductor Ba$_{0.6}$K$_{0.4}$Fe$_2$As$_2$ ($T_c$ = 38 K). In the normal...

Doping dependence of Normal-state Property in the Iron-based Oxypnictide Superconductors LaFeAsO1-y probed by 57Fe-NMR and 75As-NMR/NQR (2009)

Mukuda, H., Terasaki, N., Tamura, N., Kinouchi, H., Yashima, M., Kitaoka, Y., ...

We report systematic 57Fe-NMR and 75As-NMR/NQR studies on an underdoped sample (T_c=20 K), an optimally doped sample (T_c=28 K), and an overdoped sample (T_c=22 K) of oxygen-deficient iron (Fe)-based...

Antiferromagnetic phase transition in four-layered high-T_c superconductors Ba_2Ca_3Cu_4O_8(F_yO_{1-y})_2 with T_c=55-102 K: Cu- and F-NMR studies (2009)

Shimizu, S., Mukuda, H., Kitaoka, Y., Kito, H., Kodama, Y., Shirage, P. M., ...

We report on magnetic characteristics in four-layered high-T_c superconductors Ba_2Ca_3Cu_4O_8(F_yO_{1-y})_2 with apical fluorine through Cu- and F-NMR measurements. The substitution of oxygen for...

Uniform mixing of antiferromagnetism and high-T_c superconductivity in multilayered copper oxides Ba_2Ca_{n-1}Cu_nO_{2n}F_2 with apical fluorines (n=2,3,4): Cu-NMR/NQR and F-NMR (2009)

Shimizu, S., Sakaguchi, T., Mukuda, H., Kitaoka, Y., Shirage, P. M., Kodama, Y., ...

We report Cu-NMR/NQR and F-NMR studies on the multilayered high-T_c copper oxides Ba_2Ca_{n-1}Cu_nO_{2n}F_2 with n=2,3,4, where n is the number of CuO_2 planes. It is revealed that bi-layered...

75As NMR Study of Hole-Doped Superconductor Ba1-xKxFe2As2 (Tc = 38K) (2009)

Fukazawa, H., Yamazaki, T., Kondo, K., Kohori, Y., Takeshita, N., Shirage, P. M., ...

We report the 75As nuclear magnetic resonance (NMR) measurement of the hole-doped superconductor Ba1-xKxFe2As2 with different lattice parameters and different superconducting volume fractions (Tc =...

Genuine Phase Diagram of Homogeneously Doped CuO2 Plane in High-Tc Cuprate Superconductors (2008)

Mukuda, H., Yamaguchi, Y., Shimizu, S., Kitaoka, Y., Shirage, P. M., Iyo, A.

We report a genuine phase diagram for a disorder-free CuO_2 plane based on the precise evaluation of the local hole density (N_h) by site-selective Cu-NMR studies on five-layered high-Tc cuprates. It...

Spin Fluctuations and Unconventional Superconductivity in the Fe-based Oxypnictide Superconductor LaFeAsO_0.7 probed by 57Fe-NMR (2008)

Terasaki, N., Mukuda, H., Yashima, M., Kitaoka, Y., Miyazawa, K., Shirage, P. M., ...

We report $^{57}$Fe-NMR studies on the oxygen-deficient iron (Fe)-based oxypnictide superconductor LaFeAsO$_{0.7}$ ($T_{c}=$ 28 K) enriched by $^{57}$Fe isotope. In the superconducting state, the...

75As NQR/NMR Studies on Oxygen-deficient Iron-based Oxypnictide Superconductors LaFeAsO_{1-y} (y=0,0.25,0.4) and NdFeAsO_{0.6} (2008)

Mukuda, H., Terasaki, N., Kinouchi, H., Yashima, M., Kitaoka, Y., Suzuki, S., ...

We report 75As-NQR/NMR studies on the oxygen-deficient iron(Fe)-based oxypnictide superconductors LaFeAsO_{0.6} (T_c=28 K) along with the results on LaFeAsO, LaFeAsO_{0.75}(T_c=20 K) and...

Studies on Fabrication of Ag/Tl2Ba2Ca2Cu3O10/CdSe Heterostructures with Electrochemical Technique (2003)

Shirage, P M, Shivagan, D D, Pawar, S H

Metal/superconductor/semiconductor (Ag/TlBaCaCuO/CdSe) heterostructures have been successfully fabricated using pulse-electrodeposition technique. The electrochemical parameters are optimized and...

Fabrication of Ag/Tl-Ba-Ca-CuO/CdSe nanostructure by electrodeposition technique (2003)

Shirage, P. M., Shivagan, D. D., Ekal, L. A., Desai, N. V., Mane, S. B., Pawar, S. H.

Junction between metal, superconductor and semiconductor materials seems to be promising for their applications as the electronic devices, microelectronic devices and high power transmission. E-mail...

Studies on Fabrication of Ag/HgBaCaCuO/CdSe Heterostructures by Pulse-Electrodeposition Route (2003)

Shivagan, D. D., Shirage, P. M., Pawar, S. H.

Metal/superconductor/semiconductor (Ag/HgBaCaCuO/CdSe) heterostructures have been successfully fabricated using pulse-electrodeposition technique. The electrochemical parameters are optimized and...

Synthesis of Single Phase Hg-1223 High Tc Superconducting Films With Multistep Electrolytic Process (2003)

Shivagan, D. D., Shirage, P. M., Ekal, L. A., Pawar, S. H.

We report the multistep electrolytic process for the synthesis of high Tc single phase HgBa2Ca2Cu3O8+ (Hg-1223) superconducting films. The process includes : i) deposition of BaCaCu precursor...

Room Temperature Electrochemical Synthesis of Hg-1212 Superconducting Thin Films (2003)

Shivagan, D. D., Shirage, P. M., Ekal, L. A., Pawar, S. H.

In the present investigation, the novel two-step electrochemical process of room temperature synthesis of Hg-1212 superconducting films has been developed and reported first time. Electrochemical...

Electrochemical synthesis of superconducting MgB2 thin films: a novel potential technique (2002)

Pawar, S. H., Jadhav, A. B., Shirage, P. M., Shivagan, D. D.

A complexing molecule electrodeposition technique has been developed for the deposition of low cost, lightweight MgB2 films, for the first time. Different deposition parameters such as bath...

A Pathway to High Tc and Jc With Hetero-Nano Interface of Tl-2223/Al Heterostructure (2002)

Pawar, S. H., Shirage, P. M., Shivagan, D. D.

A pathway to high Tc and Jc with superconducting hetero-nano structures of Tl-2223/Al are reported first time. Two dimensional nano-stripe structure at the interface of Tl-2223/Al was fabricated with...