Abstract
The universal phase diagram of a 2D surface superconductor with generic Rashba interaction in a parallel magnetic field is found. In addition to the uniform BCS state, we find two inhomogeneous superconductive states, the stripe phase with Δ (r) ∝ cos(Qr) at high magnetic fields, and a new “helical” phase with Δ(r) ∝ exp(i Qr) which intervenes between the BCS state and stripe phase at an intermediate magnetic field and temperature. We prove that the ground state for helical phase carries no current.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. I. Larkin and Yu. N. Ovchinnikov, Sov. Phys. JETP 20, 762 (1965).
P. Fulde and R. A. Ferrel, Phys. Rev. 135, A550 (1964).
V. Barzykin and L. P. Gor’kov, Phys. Rev. Lett. 89, 227002 (2002).
S. Reich and Y. Tsabba, Eur. Phys. J. B 9, 1 (1999); Y. Levi, O. Millo, A. Sharoni, et al., Europhys. Lett. 51, 564 (2000); S. Recih, G. Leitus, Y. Tsabba, et al., J. Supercond. 13, 855 (2000).
E. I. Rashba, Sov. Phys. Solid State 2, 1109 (1960).
V. M. Edelstein, Zh. Éksp. Teor. Fiz. 95, 2151 (1989) [Sov. Phys. JETP 68, 1244 (1989)].
L. P. Gor’kov and E. I. Rashba, Phys. Rev. Lett. 87, 037004 (2001).
D. F. Agterberg, cond-mat/0204592.
O. V. Dimitrova and M. V. Feigel’man (in preparation).
V. N. Popov, Functional Integrals and Collective Excitations (Cambridge Univ. Press, Cambridge, 1987).
A. A. Abrikosov, L. P. Gor’kov, and I. E. Dzyaloshinski, Methods of Quantum Field Theory in Statistical Physics (Dover, New York, 1975).
L. G. Aslamazov, Sov. Phys. JETP 28, 773 (1969).
R. A. Klemm, A. Luther, and M. R. Beasley, Phys. Rev. B 12, 877 (1975).
S. K. Yip, Phys. Rev. B 65, 144508 (2002).
Author information
Authors and Affiliations
Additional information
From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 78, No. 10, 2003, pp. 1132–1136.
Original English Text Copyright © 2003 by Dimitrova, Feigel’man.
This article was submitted by the authors in English.