Meijer FE, Morpurgo AF, Klapwijk TM, Nitta J. Universal spin-induced time reversal symmetry breaking in two-dimensional electron gases with Rashba spin-orbit interaction.
PHYSICAL REVIEW LETTERS 2005;
94:186805. [PMID:
15904395 DOI:
10.1103/physrevlett.94.186805]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2004] [Indexed: 05/02/2023]
Abstract
We have experimentally studied the spin-induced time reversal symmetry (TRS) breaking as a function of the relative strength of the Zeeman energy (E(Z)) and the Rashba spin-orbit interaction energy (E(SOI)), in InGaAs-based 2D electron gases. We find that the TRS breaking, and hence the associated dephasing time tau(phi)(B), saturates when E(Z) becomes comparable to E(SOI). Moreover, we show that the spin-induced TRS breaking mechanism is a universal function of the ratio E(Z)/E(SOI), within the experimental accuracy.
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