Výsledky vyhledávání - "D. A. Tennant"

Akademický článek

Quantum wake dynamics in Heisenberg antiferromagnetic chains

Autor: A. Scheie, P. Laurell, B. Lake, S. E. Nagler, M. B. Stone, J-S Caux, D. A. Tennant

Publikováno v: Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)

It has long been suggested that the inverse Fourier transform of neutron scattering data gives access to space- and time-resolved spin-spin correlations. Scheie et al. perform this procedure on high-precision experimental data from a 1D quantum antif

Externí odkaz: https://doaj.org/article/2bcf7f2ad2c84d0c9aea7db4c9c511d2

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Akademický článek

Tomonaga–Luttinger liquid behavior and spinon confinement in YbAlO3

Autor: L. S. Wu, S. E. Nikitin, Z. Wang, W. Zhu, C. D. Batista, A. M. Tsvelik, A. M. Samarakoon, D. A. Tennant, M. Brando, L. Vasylechko, M. Frontzek, A. T. Savici, G. Sala, G. Ehlers, A. D. Christianson, M. D. Lumsden, A. Podlesnyak

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)

Low dimensional quantum magnetic excitations are intriguing but the experimental realizations are challenging. Here, the authors demonstrate Tomonaga–Luttinger behavior and spinon confinement in rare-earth perovskite YbAlO3 by inelastic neutron sca

Externí odkaz: https://doaj.org/article/89f9a19961c64ab2a23efcdeb3e75262

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Akademický článek

Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet

Autor: Tao Hong, Y. Qiu, M. Matsumoto, D. A. Tennant, K. Coester, K. P. Schmidt, F. F. Awwadi, M. M. Turnbull, H. Agrawal, A. L. Chernyshev

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)

Spontaneous magnon decay in canted antiferromagnets has been theoretically investigated extensively, but experimental evidence is limited. Here the authors study the spin ½ antiferromagnet DLCB via neutron scattering, revealing field-induced spontan

Externí odkaz: https://doaj.org/article/2d08fccf9f564aa1809bb8014b1e93f1

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Akademický článek

Reconstructing the spatial structure of quantum correlations in materials

Autor: Allen Scheie, Pontus Laurell, Elbio Dagotto, D. Alan Tennant, Tommaso Roscilde

Publikováno v: Physical Review Research, Vol 6, Iss 3, p 033183 (2024)

Quantum correlations are a fundamental property of quantum many-body states. Yet they remain experimentally elusive, hindering certification of genuine quantum behavior, especially in quantum materials. Here we show that the momentum-dependent dynami

Externí odkaz: https://doaj.org/article/38b276f81eb54b55aced6c828d3114ac

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Akademický článek

First-principles derivation of magnetic interactions in the triangular quantum spin liquid candidates KYbCh_{2} (Ch=S,Se,Te) and AYbSe_{2} (A=Na,Rb)

Autor: John W. Villanova, Allen O. Scheie, D. Alan Tennant, Satoshi Okamoto, Tom Berlijn

Publikováno v: Physical Review Research, Vol 5, Iss 3, p 033050 (2023)

The AYbCh_{2} (A=alkalimetal, Ch=chalcogen) delafossites are a family of crystals which have a triangular lattice of effective S=1/2 moments on their Yb atoms. They hold great promise for the realization of the triangular quantum spin liquid state be

Externí odkaz: https://doaj.org/article/354ec64c617e47c89250178a31659469

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Akademický článek

Extraction of interaction parameters for α-RuCl_{3} from neutron data using machine learning

Autor: Anjana M. Samarakoon, Pontus Laurell, Christian Balz, Arnab Banerjee, Paula Lampen-Kelley, David Mandrus, Stephen E. Nagler, Satoshi Okamoto, D. Alan Tennant

Publikováno v: Physical Review Research, Vol 4, Iss 2, p L022061 (2022)

Single-crystal inelastic neutron-scattering (INS) data contain rich information about the structure and dynamics of a material. Yet the challenge of matching sophisticated theoretical models with large data volumes is compounded by computational comp

Externí odkaz: https://doaj.org/article/b0031970dc0945f790a4857e2ba8cf2e

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Akademický článek

Structural magnetic glassiness in the spin ice Dy_{2}Ti_{2}O_{7}

Autor: Anjana M. Samarakoon, André Sokolowski, Bastian Klemke, Ralf Feyerherm, Michael Meissner, R. A. Borzi, Feng Ye, Qiang Zhang, Zhiling Dun, Haidong Zhou, T. Egami, Jonathan N. Hallén, Ludovic Jaubert, Claudio Castelnovo, Roderich Moessner, S. A. Grigera, D. Alan Tennant

Publikováno v: Physical Review Research, Vol 4, Iss 3, p 033159 (2022)

The origin and nature of glassy dynamics presents one of the central enigmas of condensed-matter physics across a broad range of systems ranging from window glass to spin glasses. The spin-ice compound Dy_{2}Ti_{2}O_{7}, which is perhaps best known a

Externí odkaz: https://doaj.org/article/e4dd183ae93244c58e00aee948f2267a

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