Publication: The ratio of normal state to superconducting state of spin lattice relaxation rate of unconventional superconductors
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Issued Date
2009
Resource Type
File Type
application/pdf
ISSN
9214534
Other identifier(s)
2-s2.0-63649110300
Rights Holder(s)
Scopus
Bibliographic Citation
Physica C: Superconductivity and its Applications. Vol 469, (2009), p.247-251
Suggested Citation
Udomsamuthirun P., Wanghunklang J. The ratio of normal state to superconducting state of spin lattice relaxation rate of unconventional superconductors. Physica C: Superconductivity and its Applications. Vol 469, (2009), p.247-251. doi:10.1016/j.physc.2009.02.003 Retrieved from: https://hdl.handle.net/20.500.14740/7118
Author(s)
Abstract
In this research, we derive a simple expression for the ratio of normal state superconducting state of spin lattice relaxation rate of unconventional superconductors from the BCS weak-coupling equation. The unconventional superconductors we consider have three types of order parameters as d-wave, 3He A-phase and p-wave three-dimensional order parameter that had been done before by Parker and Haas [D. Parker, S. Haas, Physical Review B 75 (2007) 052501]. After using some numerical approximations and some boundary conditions, we can find the ratio of normal state to superconducting state of spin lattice relaxation rate in power series of temperature dependent order parameters and temperature. Our numerical calculations show the coherence peak below critical temperature clearly that are consistent with Parker and Haas [D. Parker, S. Haas, Physical Review B 75 (2007) 052501]. These results do not agree with the believed that the coherence peak is the only property of s-wave superconductor. However from our calculation, we can conclude that the unconventional superconductors can show the coherence peaks. © 2009 Elsevier B.V. All rights reserved.
Subject(s)
Helium
Organic superconducting materials
Spin dynamics
Superconducting materials
Three dimensional
Coherence peak
Critical temperatures
Dimensional orders
Normal state
Numerical approximations
Numerical calculations
Order parameters
Physical reviews
Power series
Simple expressions
Spin lattice relaxation rate
Superconducting state
Temperature dependents
Unconventional superconductors
Wave superconductors
Weak couplings
Superconductivity
Organic superconducting materials
Spin dynamics
Superconducting materials
Three dimensional
Coherence peak
Critical temperatures
Dimensional orders
Normal state
Numerical approximations
Numerical calculations
Order parameters
Physical reviews
Power series
Simple expressions
Spin lattice relaxation rate
Superconducting state
Temperature dependents
Unconventional superconductors
Wave superconductors
Weak couplings
Superconductivity