Effect of strong potential scattering on the local moment relaxation in anisotropic superconductors

Hocine Bahlouli

doi:10.1016/0375-9601(90)90977-V

Effect of strong potential scattering on the local moment relaxation in anisotropic superconductors

Hocine Bahlouli^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The relaxation rate for the local moment of an impurity in an anisotropic superconductor is calculated, taking into account the effect of strong scalar potential scattering-off the same impurity. In applying our results to heavy fermion superconductors, the phase shift associated with this potential scattering turns out to be close to π 2. As a result a strong enhancement of the relaxation rate is obtained for states with lines of nodes in their energy gap, and a reduction for states with point nodes. Such signatures might be helpful in identifying the correct microscopic structure of the energy gap in these systems.

Original language	English
Pages (from-to)	265-268
Number of pages	4
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	146
Issue number	5
DOIs	https://doi.org/10.1016/0375-9601(90)90977-V
State	Published - 28 May 1990

Bibliographical note

Funding Information:
We wish to acknowledge useful and stimulating conversations with Professor Oriol Valls and correspondence with Dr. Daniel Cox on the subject matter of this paper. This work was supported by the Theoretical Physics Institute at the University of Minnesota and the Physics Department at KFUPM University.

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1016/0375-9601(90)90977-V

Cite this

@article{13edbceedd864a35a8198e5faafeae8f,

title = "Effect of strong potential scattering on the local moment relaxation in anisotropic superconductors",

abstract = "The relaxation rate for the local moment of an impurity in an anisotropic superconductor is calculated, taking into account the effect of strong scalar potential scattering-off the same impurity. In applying our results to heavy fermion superconductors, the phase shift associated with this potential scattering turns out to be close to π 2. As a result a strong enhancement of the relaxation rate is obtained for states with lines of nodes in their energy gap, and a reduction for states with point nodes. Such signatures might be helpful in identifying the correct microscopic structure of the energy gap in these systems.",

author = "Hocine Bahlouli",

note = "Funding Information: We wish to acknowledge useful and stimulating conversations with Professor Oriol Valls and correspondence with Dr. Daniel Cox on the subject matter of this paper. This work was supported by the Theoretical Physics Institute at the University of Minnesota and the Physics Department at KFUPM University.",

year = "1990",

month = may,

day = "28",

doi = "10.1016/0375-9601(90)90977-V",

language = "English",

volume = "146",

pages = "265--268",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

issn = "0375-9601",

number = "5",

}

TY - JOUR

T1 - Effect of strong potential scattering on the local moment relaxation in anisotropic superconductors

AU - Bahlouli, Hocine

N1 - Funding Information: We wish to acknowledge useful and stimulating conversations with Professor Oriol Valls and correspondence with Dr. Daniel Cox on the subject matter of this paper. This work was supported by the Theoretical Physics Institute at the University of Minnesota and the Physics Department at KFUPM University.

PY - 1990/5/28

Y1 - 1990/5/28

N2 - The relaxation rate for the local moment of an impurity in an anisotropic superconductor is calculated, taking into account the effect of strong scalar potential scattering-off the same impurity. In applying our results to heavy fermion superconductors, the phase shift associated with this potential scattering turns out to be close to π 2. As a result a strong enhancement of the relaxation rate is obtained for states with lines of nodes in their energy gap, and a reduction for states with point nodes. Such signatures might be helpful in identifying the correct microscopic structure of the energy gap in these systems.

AB - The relaxation rate for the local moment of an impurity in an anisotropic superconductor is calculated, taking into account the effect of strong scalar potential scattering-off the same impurity. In applying our results to heavy fermion superconductors, the phase shift associated with this potential scattering turns out to be close to π 2. As a result a strong enhancement of the relaxation rate is obtained for states with lines of nodes in their energy gap, and a reduction for states with point nodes. Such signatures might be helpful in identifying the correct microscopic structure of the energy gap in these systems.

UR - https://www.scopus.com/pages/publications/45149137158

U2 - 10.1016/0375-9601(90)90977-V

DO - 10.1016/0375-9601(90)90977-V

M3 - Article

AN - SCOPUS:45149137158

SN - 0375-9601

VL - 146

SP - 265

EP - 268

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 5

ER -

Effect of strong potential scattering on the local moment relaxation in anisotropic superconductors

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this