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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Dear QE users and developers,
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<div>I have two questions about the GIPAW code. I would appreciate it if you reply to me.</div>
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<div>1. I am interested in the indirect spin-spin J coupling calculation for nuclear spins in a solid. I know there is this paper: "A first principles theory of nuclear magnetic resonance J-coupling in solid-state systems", Joyce et al., JCP 127, 204107 (2007).
Could you tell me if I can do this calculation using the GIPAW module in Quantum espresso? I checked the GIPAW manual and some tutorial slides, but I couldn't find any relevant information.</div>
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<div>2. I am also interested in EPR parameter calculations. In particular, I want to calculate the zero-field splitting tensor of some defect spins in a wide-gap semiconductor. Do you know if I can do this ZFS calculation (without the spin orbit coupling) using
the GIPAW code?</div>
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<div>Thank you.</div>
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<div>Best,</div>
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<div>Hosung Seo</div>
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<div>_____</div>
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<div>Hosung Seo, Ph.D.</div>
<div>Postdoctoral Fellow</div>
<div>The Institute for Molecular Engineering</div>
<div>The University of Chicago, Chicaogo, IL, USA</div>
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