Magnetic Ordering in the Ising Antiferromagnetic Pyrochlore Nd2ScNbO7

Order out of a Coulomb Phase and Higgs Transition: Frustrated Transverse Interactions of Nd2Zr2O7Xu1, Benton2, Islam3 et al. 2020Phys. Rev. Lett.305302View full textAdd to dashboardCite

“…The gapped and gapless pinch point patterns below and above T N is another important evidence for a Higgs transition. Our results provide an explanation for the seemingly contradicting temperature dependences of the intensities of the AIAO Bragg peak and the pinch point pattern in the energy-integrated polarized neutron scattering data reported for Nd 2 Zr 2 O 7 [32] and very recently for Nd 2 ScNbO 7 [48]. It was shown that with increasing temperature, the magnetic Bragg peak weakens and disappears at T N while the pinch point intensity maximizes around T N and persists to much higher temperatures (∼ 1 K) for both Nd 2 Zr 2 O 7 and Nd 2 ScNbO 7 .…”

“…Our results indicate that the paramagnetic phase of an ordered system may host unconventional spin correlations different from the ground-state order in nature due to competition and frustration among different terms of anisotropic exchange interactions. This expands the field for searching for quantum spin ice to the ordered systems with frustrated terms in the spin Hamiltonian and makes it interesting to examine several similar QSI candidates with AIAO order, such as Nd 2 (Hf/Sn/Pb) 2 O 7 , Nd 2 ScNbO 7 and Sm 2 (Ti/Sn) 2 O 7 [48,[51][52][53][54][55].…”