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Nuclear Antiferromagnetic Resonance in Solid 3He

Osheroff, D. D. and Cross, M. C. and Fisher, D. S. (1980) Nuclear Antiferromagnetic Resonance in Solid 3He. Physical Review Letters, 44 (12). pp. 792-795. ISSN 0031-9007.

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Detailed measurements of the low-field antiferromagnetic resonance spectrum of spin-ordered bcc 3He exhibit large shifts from the Larmor frequency, with a zero-field resonant frequency near zero temperature of Ω0/2π≃825 kHz. Analysis of the spectrum leads to stringent constraints on possible sublattice structures. The temperature dependence of Ω0 shows low-temperature behavior expected from spin-wave theory, and indicates a first-order transition at 1.03 mK.

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Additional Information:©1980 The American Physical Society Received 1 February 1980 The authors wish to thank W. O. Sprenger and C. Yu for their technical assistance, and acknowledge useful suggestions from P. W. Anderson and discussions with R. J. Birgeneau, W. F. Brinkman, R. C. Richardson, and C. M. Varma. In addition, we wish to thank E. D. Adams for discussing elements of his related experiments with us.
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Deposited On:09 Oct 2006
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