Study of Upper Critical Magnetic Field of Superconducting HoMo<sub>6</sub>Se<sub>8</sub>
- 1 Department of Physics, College of Natural Science, Addis Ababa University, Addis Ababa, Ethiopia
- 2 Department of Physics, College of Natural Science, Addis Ababa University, Addis Ababa, Ethiopia
- 3 Department of Physics, College of Science, Bahir Dar University, Bahir Dar, Ethiopia
Abstract
This work focuses on the study of mathematical aspects of upper critical magnetic field of superconducting HoMo 6 Se 8 . At zero external magnetic field, HoMo 6 Se 8 was found to undergo a transition from the normal state to the superconducting state at 5.6 K and returned to a normal but magnetically ordered state between the temperature range of 0.3 K and 0.53 K. The main objective of this work is to show the temperature dependence of the upper critical magnetic field of superconducting HoMo 6 Se 8 by using the Ginzburg-Landau (GL) phenomenological Equation. We found the direct relationship between the GL coherence length ( ξ GL ) and penetration depth ( λ GL ) with temperature. From the GL Equations and the results obtained for the GL coherence length, the expression for upper critical magnetic field ( H c2 ) is obtained for the superconducting HoMo 6 Se 8 . The result is plotted as a function of temperature. The graph shows the linear dependence of upper critical magnetic field ( H c2 ) with temperature (T) and our finding is in agreement with experimental observations.
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