M-Tl-Ba-Cu-O high temperature superconductors wherein M is selected from the group consisting of Ti, Zr and Hf

A high-temperature superconducting system comprising M-Tl-Ba-Cu-O wherein: M is selected from the group consisting of Ti, Zr, and Hf. In one embodiment, the M-Tl-Ba-Cu-O system forms a high Tc phase of approximately 90 K wherein: M is selected from the group consisting of Zr and Hf. In another embodiment, a nominal ZrTl2Ba2Cu3O10 sample forms a high Tc phase of above 100 K

CrTlSrCaCuO and related superconducting systems

This invention provides a high temperature superconductor system comprising XTlSrCaCuO wherein X is chosen from the group consisting of Cr, Mo, and W. In a preferred embodiment, the superconductor comprises CrTlSrCaCuO. Methods of making the superconductor system are also provided

High temperature superconductor system and processes for making same

A high temperature superconducting system with the general composition Tl-R-X-Y, wherein: R is a Group 2A element; X is a Group 1B element; and Y is a Group 6A element is described. Preferably, the composition has the following formula Tl-Ba-Cu-O. The high temperature superconductor of the present invention has a transition temperature of about 90 K with the probability of one phase superconducting at a temperature perhaps as high as 270 K. Processes for making the high temperature superconductor are also provided

High temperature superconducting Tl-Ba-Ca-Cu-O phases

A new high temperature superconducting system with transition temperature above 120 K is disclosed. One superconductor in that system in a preferred embodiment comprises TlRBaCuO wherein R is chosen from Group 2A elements excluding Ba. In a preferred embodiment, the superconductor is TlCaBaCuO. In another preferred embodiment, the superconductor comprises TlSrCuO. Processes for making high temperature superconducting system are also disclosed

Process for making Tl-Ba-Ca-Cu-O superconductors using thallium vapor

A process for making high temperature Tl-based superconductors is disclosed. It includes the steps of reacting solid Ba-Ca-Cu-oxides with Tl2O3 vapor. This process allows high quality Tl-based superconductors to be easily fabricated

High temperature superconductors comprising Tl-Ca-Ba-O, Tl-Sr-Ba-Cu-O, or Tl-Sr-Cu-O

A new high temperature superconductor with transition temperature above 120 K is disclosed. The superconductor in a preferred embodiment comprises TlRBaCuO wherein R is chosen from Group 2A elements excluding Ba. In another preferred embodiment, the superconductor comprises TlSrCuO. Processes for making high temperature superconductors are also disclosed

High temperature superconductor system having the formula Tl-Ba-Cu-O

A high temperature superconducting system has the general composition Tl-R-X-Y, wherein: R is a Group 2A element; X is a Group 1B element; and Y is a Group 6A element. Preferably, the composition has the following formula Tl-Ba-Cu-O. The high temperature superconductor of the present invention has a transition temperature of about 90 K with the probability of one phase superconducting at a temperature perhaps as high as 270 K. Processes for making the high temperature superconductor are also provided

High temperature Tl-Ba-Ca-Cu-O and Tl-Sr-Cu-O superconductor

A new high temperature superconductor with transition temperature above 120 K is disclosed. The superconductor in a preferred embodiment comprises TlRBaCuO wherein R is chosen from Group 2A elements excluding Ba. In another preferred embodiment, the superconductor comprises TlSrCuO. Processes for making high temperature superconductors are also disclosed

R-Tl-Sr-Ca-Cu-O superconductors and processes for making same

A high temperature superconductor system is provided having the following formula: M-A-B-C-D-E, wherein, M is a metallic element. A is an element in Group 3A, B is an element in Group 2A, C is another element in Group 2A, D is an element in Group 1B, and E is an element in Group 6A. In an embodiment, the high temperature superconductor has the following formula: R-Tl-Sr-Ca-Cu-O (wherein R is chosen form the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y). Processes for making these high temperature superconductors are also disclosed

R-T1-Sr-Ca-Cu-O superconductors and processes for their preparation.

A high temperature superconductor system is provided having the following formula: M-A-B-C-D-E, wherein, M is a metallic element, A is an element in Group 3B, B is an element in Group 2A, C is another element in Group 2A, D is an element in Group 1B, and E is an element in Group 6B. In one embodiment, the high temperature superconductor has the following formula: R-Tl-Sr-Ca-Cu-O (wherein R is chosen from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y). Processes for making these high temperature superconductors are also disclosed