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78 papers · 1 filter
Experimental signatures of versatile Weyl semimetal in pyrochlore iridate with spin-ice like magnetic orders
Kentaro Ueda, Hiroaki Ishizuka, Markus Kriener +6
We report experimental signatures of topological transitions among the Weyl semimetal states of pyrochlore Pr2Ir2O7, where the Kondo coupling between the Ir topological electrons a…
Can bilayer graphene become a fractional metal?
A. O. Sboychakov, A. L. Rakhmanov, A. V. Rozhkov +1
It is known that electron interactions can cause a perfect spin polarization of the Fermi surface of a metal. In such a situation only half of the non-interacting Fermi surface is…
Quantum criticality in the coupled two-leg spin ladder Ba2CuTeO6
A. Glamazda, Y. S. Choi, S. -H. Do +8
We report on zero-field muon spin rotation, electron spin resonance and polarized Raman scattering measurements of the coupled quantum spin ladder Ba2CuTeO6. Zero-field muon spin r…
S=1/2 quantum critical spin ladders produced by orbital ordering in Ba2CuTeO6
A. S. Gibbs, A. Yamamoto, A. N. Yaresko +10
The ordered hexagonal perovskite Ba2CuTeO6 hosts weakly coupled S=1/2 spin ladders produced by an orbital ordering of Cu2+. The magnetic susceptibility chi(T) of Ba2CuTeO6 is well…
Possible spin frustration in NdTiO probed by muon spin relaxation
Hanjie Guo, Hui Xing, Jun Tong +3
Muon spin relaxation on NdTiO (NTO) and NdLaTiO (NLTO) compounds are presented. The time spectra for both compounds are as expected for the paramagnetic state a…
Engineering spin-orbital magnetic insulator by tailoring superlattices
Jobu Matsuno, Kota Ihara, Shugen Yamamura +5
Novel interplay of spin-orbit coupling and electron correlations in complex Ir oxides recently emerged as a new paradigm for correlated electron physics. Because of a large spin-or…