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Nuclear spin relaxation rates in two-leg spin ladders

F. Naef·Xiaoqun Wang
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Abstract

Using the transfer-matrix DMRG method, we study the nuclear spin relaxation rate 1/T_1 in the two-leg s=1/2 ladder as function of the inter-chain (J_{\perp}) and intra-chain (J_{|}) couplings. In particular, we separate the q_y=0 and πcontributions and show that the later contribute significantly to the copper relaxation rate ^{63}(1/T_1) in the experimentally relevant coupling and temperature range. We compare our results to both theoretical predictions and experimental measures on ladder materials.

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F. Naef, Xiaoqun Wang. 1999-11-25. Nuclear spin relaxation rates in two-leg spin ladders. https://doi.org/10.1103/physrevlett.84.1320

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