The Enhancement Of Transition Temperature And Phase Stability In (TI2-xmxba2cacu28-8) High Temperature Superconductor With M = Cr And Te

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The Enhancement of Transition Temperature and Phase Stability in (Tl2-xMxBa2CaCu2O8-8) High Temperature Superconductor with M = Cr and Te

Introduction

High temperature superconductors (HTS) have been a subject of intense research in recent years due to their potential applications in various fields, including energy, medicine, and transportation. One of the key challenges in developing HTS is to enhance their transition temperature (Tc) and phase stability. In this study, we investigate the effect of replacing Tl with Cr and Te on the Tc and phase stability of (Tl2-xMxBa2CaCu2O8-8) HTS.

Materials and Methods

The precursor material of Ba2CaCu2O was prepared from a mixture of BaCO3, CaO, and CuO, which was then synthesized at 900 °C for 24 hours. After cooling to room temperature, the precursor was ground and mixed with Tl2O3 and Cr2O3 or Te2O3 to produce Tl2-Cr-yBa2CaCu2O8 or Tl2-Te-yBa2CaCu2O8. The resulting pellet was compressed using a hydraulic compression device with a pressure of 7 tons for 10 minutes, then heated again at 900 °C with oxygen flow for 4 minutes.

The measurement method was carried out using a four-point probe, where the tools used were Keithley 220 and Keithley 2000. The cooling process used a vacuum pump and cooler to control the temperature. Tc critical temperature was measured using a closed cycle helium cooling system, and resistivity in normal conditions was determined by the Van der Pauw method.

Results

The results showed that the composition of Tl1.8Cr0.2Ba2CaCu2O8-8 reached a maximum critical temperature with Tc zero 96 K and Tc onset 116 K, where the Tl-2212 phase in this composition reached 88% with a Crid C parameter of 29,388 Ã…. Most samples were in the group 14/MMM. Increased Tc zero to 100 K and Tc onset 115 K occurred in the composition of Tl1.9Te0.1Ba2CaCu2O8-8, with the Tl-2212 phase reaching 92% and the Crid C parameter of 29,2596 Ã…. Meanwhile, the composition of Tl1.6Te0.4Ba2CaCu2O8-5 showed Tc zero 98 K and Tc onset 111 K, with the Tl-2212 phase of 84% and the C 29,2100 Ã… lattice parameter.

Discussion

From these results, it can be concluded that the existence of the phase affects the critical temperature, and the value of coheren length C (0) tends to increase along with the increase in Cr and Te content. In addition, all samples indicated a single peak on Tc, which indicates that the resulting superconductivity is quite consistent.

Conclusion

This study has important implications in the development of high temperature superconductors, especially with elements replacement such as Cr and Te in Tl position. An increase in critical transition temperature in the sample with Cr and Te content shows that these elements not only function as a substitute, but also play a role in increasing interactions between atoms in the crystal structure.

Future Research Directions

The synthesis process carried out by a solid reaction method shows efficiency in producing high quality materials. Control of temperature and pressure during the manufacturing process also contributes to the desired phase stability. With better phase stability, superconductors can have wider applications, ranging from information technology to energy.

This finding illustrates the importance of selecting raw materials and synthetic conditions in the development of superconductors that have high transition temperatures. Further research needs to be done to optimize composition and process, as well as to understand the mechanism that underlies the superconductors' properties in depth. Improved high temperature superconductors can open new opportunities in future technological innovations.

Recommendations

Based on the results of this study, we recommend the following:

  • Further research should be conducted to optimize the composition and process of (Tl2-xMxBa2CaCu2O8-8) HTS.
  • The mechanism underlying the superconductors' properties should be investigated in depth.
  • The development of high temperature superconductors with improved phase stability and critical transition temperature should be pursued.

Limitations

This study has several limitations, including:

  • The sample size was limited, and further research should be conducted to confirm the results.
  • The synthesis process was carried out using a solid reaction method, which may not be suitable for large-scale production.
  • The measurement method used was limited to a four-point probe, which may not provide a comprehensive understanding of the superconductors' properties.

Future Perspectives

The development of high temperature superconductors with improved phase stability and critical transition temperature has the potential to revolutionize various fields, including energy, medicine, and transportation. Further research should be conducted to overcome the limitations of this study and to develop high temperature superconductors that can be used in practical applications.

Conclusion

In conclusion, this study demonstrates the importance of selecting raw materials and synthetic conditions in the development of high temperature superconductors. The results show that the existence of the phase affects the critical temperature, and the value of coheren length C (0) tends to increase along with the increase in Cr and Te content. Further research should be conducted to optimize composition and process, as well as to understand the mechanism that underlies the superconductors' properties in depth. Improved high temperature superconductors can open new opportunities in future technological innovations.
Q&A: The Enhancement of Transition Temperature and Phase Stability in (Tl2-xMxBa2CaCu2O8-8) High Temperature Superconductor with M = Cr and Te

Q: What is the main objective of this study?

A: The main objective of this study is to investigate the effect of replacing Tl with Cr and Te on the transition temperature (Tc) and phase stability of (Tl2-xMxBa2CaCu2O8-8) high temperature superconductor.

Q: What are the key findings of this study?

A: The key findings of this study are:

  • The composition of Tl1.8Cr0.2Ba2CaCu2O8-8 reached a maximum critical temperature with Tc zero 96 K and Tc onset 116 K.
  • The composition of Tl1.9Te0.1Ba2CaCu2O8-8 showed increased Tc zero to 100 K and Tc onset 115 K.
  • The composition of Tl1.6Te0.4Ba2CaCu2O8-5 showed Tc zero 98 K and Tc onset 111 K.

Q: What are the implications of this study?

A: The implications of this study are:

  • The existence of the phase affects the critical temperature, and the value of coheren length C (0) tends to increase along with the increase in Cr and Te content.
  • The resulting superconductivity is quite consistent, with all samples indicating a single peak on Tc.

Q: What are the limitations of this study?

A: The limitations of this study are:

  • The sample size was limited, and further research should be conducted to confirm the results.
  • The synthesis process was carried out using a solid reaction method, which may not be suitable for large-scale production.
  • The measurement method used was limited to a four-point probe, which may not provide a comprehensive understanding of the superconductors' properties.

Q: What are the future research directions?

A: The future research directions are:

  • Further research should be conducted to optimize the composition and process of (Tl2-xMxBa2CaCu2O8-8) HTS.
  • The mechanism underlying the superconductors' properties should be investigated in depth.
  • The development of high temperature superconductors with improved phase stability and critical transition temperature should be pursued.

Q: What are the potential applications of this study?

A: The potential applications of this study are:

  • The development of high temperature superconductors with improved phase stability and critical transition temperature can lead to the creation of more efficient and powerful electrical devices.
  • The study can also lead to the development of new materials with unique properties, which can be used in various fields such as energy, medicine, and transportation.

Q: What are the next steps in this research?

A: The next steps in this research are:

  • Further experiments should be conducted to confirm the results and to investigate the mechanism underlying the superconductors' properties.
  • The development of high temperature superconductors with improved phase stability and critical transition temperature should be pursued.
  • The study should be expanded to include more samples and to investigate the properties of the superconductors in more detail.

Q: What are the potential benefits of this research?

A: The potential benefits of this research are:

  • The development of high temperature superconductors with improved phase stability and critical transition temperature can lead to the creation of more efficient and powerful electrical devices.
  • The study can also lead to the development of new materials with unique properties, which can be used in various fields such as energy, medicine, and transportation.
  • The research can also lead to a better understanding of the properties of high temperature superconductors, which can lead to the development of new technologies and applications.