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Akademický článek

Formation of heavy d-electron quasiparticles in Sr3Ru2O7

Publikováno v: New Journal of Physics, Vol 15, Iss 6, p 063029 (2013)

The phase diagram of Sr _3 Ru _2 O _7 shows hallmarks of strong electron correlations despite the modest Coulomb interaction in the Ru 4d shell. We use angle-resolved photoelectron spectroscopy measurements to provide microscopic insight into the for

Externí odkaz: https://doaj.org/article/be2c0f24b50b4b74b61386e3faac019d

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Akademický článek

Integration of machine learning with neutron scattering for the Hamiltonian tuning of spin ice under pressure

Autor: Anjana Samarakoon, D. Alan Tennant, Feng Ye, Qiang Zhang, Santiago A. Grigera

Publikováno v: Communications Materials, Vol 3, Iss 1, Pp 1-11 (2022)

Designing and understanding quantum materials requires continuous feedback between experimental observations and theoretical modelling. Here, a machine learning scheme integrates experiments with theory and modelling on experimental timescales for ex

Externí odkaz: https://doaj.org/article/d0605a609ad14fbe9d0466970f848d1e

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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

Demonstration of long-range correlations via susceptibility measurements in a one-dimensional superconducting Josephson spin chain

Publikováno v: npj Quantum Information, Vol 8, Iss 1, Pp 1-9 (2022)

Abstract Spin chains have long been considered an effective medium for long-range interactions, entanglement generation, and quantum state transfer. In this work, we explore the properties of a spin chain implemented with superconducting flux circuit

Externí odkaz: https://doaj.org/article/92708b4471aa45b9826c5cb00b52616b

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Akademický článek

Machine-learning-assisted insight into spin ice Dy2Ti2O7

Autor: Anjana M. Samarakoon, Kipton Barros, Ying Wai Li, Markus Eisenbach, Qiang Zhang, Feng Ye, V. Sharma, Z. L. Dun, Haidong Zhou, Santiago A. Grigera, Cristian D. Batista, D. Alan Tennant

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)

Developing an understanding of a material’s magnetic behaviour based on neutron scattering measurements often relies on extracting an effective spin model. Samarakoon et al. demonstrate an automated machine learning approach to this problem, leadin

Externí odkaz: https://doaj.org/article/5964d7ee7a0c4c278294454fdb52db06

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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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