Positron annihilation in the Wigner crystal

Majumdar, Chanchal K ; Ramakrishnan , T. V. (1973) Positron annihilation in the Wigner crystal Physical Review B: Condensed Matter and Materials Physics, 7 (5). pp. 1850-1854. ISSN 1098-0121

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Official URL: http://prb.aps.org/abstract/PRB/v7/i5/p1850_1

Related URL: http://dx.doi.org/10.1103/PhysRevB.7.1850


The positron annihilation rate is calculated in the Wigner crystal and shown to approach the positronium value continuously from above as rs becomes large. For rs≈15, the numerical value is roughly in agreement with what is expected from the knowledge of the rate in low-density metals.

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