Direct observation of topological magnon polarons in a multiferroic material

Autor: Song Bao, Zhao-Long Gu, Yanyan Shangguan, Zhentao Huang, Junbo Liao, Xiaoxue Zhao, Bo Zhang, Zhao-Yang Dong, Wei Wang, Ryoichi Kajimoto, Mitsutaka Nakamura, Tom Fennell, Shun-Li Yu, Jian-Xin Li, Jinsheng Wen

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)

Abstract Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magno

Externí odkaz: https://doaj.org/article/5af7db7a8f58480b96c6e6bbfb85a49e

Coulomb spin liquid in anion-disordered pyrochlore Tb2Hf2O7

Autor: Romain Sibille, Elsa Lhotel, Monica Ciomaga Hatnean, Gøran J. Nilsen, Georg Ehlers, Antonio Cervellino, Eric Ressouche, Matthias Frontzek, Oksana Zaharko, Vladimir Pomjakushin, Uwe Stuhr, Helen C. Walker, Devashibhai T. Adroja, Hubertus Luetkens, Chris Baines, Alex Amato, Geetha Balakrishnan, Tom Fennell, Michel Kenzelmann

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)

Experimental studies of frustrated spin systems such as pyrochlore magnetic oxides test our understanding of quantum many-body physics. Here the authors show experimentally that Tb2Hf2O7 may be a model material for investigating how structural disord

Externí odkaz: https://doaj.org/article/bb69ccc286294abb9d44bc3d7c966e83

Magnetic-field control of magnetoelastic coupling in the rare-earth pyrochlore Tb2Ti2O7

Autor: Tom Fennell, G. Tucker, Frederic Bourdarot, Jonathan S. White, M. Núñez-Valdez, Uwe Stuhr, A. A. Turrini, M. Ruminy, M. Skoulatos

Publikováno v: Physical Review B. 104

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c67934ab93387b2a93163ccbe411234d
https://doi.org/10.1103/physrevb.104.224403

A quantum liquid of magnetic octupoles on the pyrochlore lattice

Autor: Toby Perring, E. Lhotel, Romain Sibille, Vladimir Pomjakushin, Andrew Wildes, Tom Fennell, Russell A. Ewings, Thomas C. Hansen, Sylvain Petit, Lukas Keller, David A. Keen, Clemens Ritter, Jacques Ollivier, Nicolas Gauthier, Gøran J. Nilsen, Victor Porée

Publikováno v: Nature Physics
Nature Physics, 2020, 16 (5), pp.546-552. ⟨10.1038/s41567-020-0827-7⟩
Nature Physics, Nature Publishing Group, 2020, 16 (5), pp.546-552. ⟨10.1038/s41567-020-0827-7⟩
Nature physics

Spin liquids are highly correlated yet disordered states formed by the entanglement of magnetic dipoles$^1$. Theories typically define such states using gauge fields and deconfined quasiparticle excitations that emerge from a simple rule governing th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16513c89dfc408160a168322963379f7
https://hal.science/hal-03036814/file/1912.00928.pdf

Special temperatures in frustrated ferromagnets

Autor: Patrik Henelius, Oleg Petrenko, Laura Bovo, Mikael Twengström, Tom Fennell, Steven T. Bramwell, Michel J. P. Gingras

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
Nature Communications

The description and detection of unconventional magnetic states such as spin liquids is a recurring topic in condensed matter physics. While much of the efforts have traditionally been directed at geometrically frustrated antiferromagnets, recent stu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df727648b0bcd3d76c7edc27a9f6ba0c
http://link.springer.com/article/10.1038/s41467-018-04297-3