TY - JOUR
T1 - Destruction of surface states of (dzx+idyz) -wave superconductor by surface roughness
T2 - Application to Sr2RuO4
AU - Suzuki, Shu Ichiro
AU - Ikegaya, Satoshi
AU - Golubov, Alexander A.
N1 - Funding Information:
Acknowledgments. We are grateful to A. Brinkman, Y. Asano, and T. Kokkeler for the fruitful discussions. S.-I. S. is supported by JSPS Postdoctoral Fellowship for Overseas Researchers and a Grant-in-Aid for JSPS Fellows (JSPS KAKENHI Grant No. JP19J02005), and thanks the University of Twente for hospitality. S.I. was supported by a Grant-in-Aid for JSPS Fellows (JSPS KAKENHI Grant No. JP21J00041).
Publisher Copyright:
© 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Financial transaction number:
6100006599
PY - 2022/10
Y1 - 2022/10
N2 - The fragility of the chiral surface current of the (dzx+idyz)-wave superconductor, a potential candidate for Sr2RuO4 against surface roughness is demonstrated utilizing the quasiclassical Eilenberger theory. Comparing the chiral surface currents of (dzx+idyz)-wave and (px+ipy)-wave pairings, we conclude the chiral current for (dzx+idyz)-wave SC is much more fragile than that for the (px+ipy)-wave one. The difference can be understood in terms of the orbital symmetry of the odd-frequency Cooper pairs arising at the surface. Our results show the (dzx+idyz)-wave scenario can explain the null spontaneous magnetization in Sr2RuO4 experiments.
AB - The fragility of the chiral surface current of the (dzx+idyz)-wave superconductor, a potential candidate for Sr2RuO4 against surface roughness is demonstrated utilizing the quasiclassical Eilenberger theory. Comparing the chiral surface currents of (dzx+idyz)-wave and (px+ipy)-wave pairings, we conclude the chiral current for (dzx+idyz)-wave SC is much more fragile than that for the (px+ipy)-wave one. The difference can be understood in terms of the orbital symmetry of the odd-frequency Cooper pairs arising at the surface. Our results show the (dzx+idyz)-wave scenario can explain the null spontaneous magnetization in Sr2RuO4 experiments.
KW - UT-Gold-D
UR - http://www.scopus.com/inward/record.url?scp=85141918450&partnerID=8YFLogxK
U2 - 10.1103/PhysRevResearch.4.L042020
DO - 10.1103/PhysRevResearch.4.L042020
M3 - Article
AN - SCOPUS:85141918450
SN - 2643-1564
VL - 4
JO - Physical Review Research
JF - Physical Review Research
IS - 4
M1 - L042020
ER -