Home > Publications database > Pinch points and half-moons in dipolar-octupolar Nd2Hf2O7 > print

001     909940
005     20230123110653.0
024 7 _ |a 10.1103/PhysRevB.106.L100401
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082 _ _ |a 530
100 1 _ |a Samartzis, A.
|0 0000-0002-8471-1437
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245 _ _ |a Pinch points and half-moons in dipolar-octupolar Nd2Hf2O7
260 _ _ |a Woodbury, NY
|c 2022
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520 _ _ |a While it is established that the pinch point scattering pattern in spin ice arises from an emergent Coulomb phase associated with a magnetic moment that is divergence free, more complex Hamiltonians can introduce a divergence-full part. If these two parts remain decoupled, they give rise to the coexistence of distinct features. Here, we show that the moment in Nd2Hf2O7 forms a static long-range ordered ground state, a flat, gapped pinch point excitation, and dispersive excitations. These results confirm recent theories which predict that the dispersive modes, which arise from the divergence-full moment, host a pinch point pattern of their own, observed experimentally as “half-moons.”
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700 1 _ |a Xu, J.
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700 1 _ |a Anand, V. K.
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700 1 _ |a Islam, A. T. M. N.
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700 1 _ |a Ollivier, J.
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700 1 _ |a Su, Y.
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700 1 _ |a Lake, B.
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773 _ _ |a 10.1103/PhysRevB.106.L100401
|g Vol. 106, no. 10, p. L100401
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