Details

Autor(en) / Beteiligte

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

Titel

Tomonaga-Luttinger liquid behavior and spinon confinement in YbAlO 3

Ist Teil von

• Nature communications, 2019-12, Vol.10 (1), p.698

Ort / Verlag

England

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Electronic Journals Library

Beschreibungen/Notizen

• Low dimensional quantum magnets are interesting because of the emerging collective behavior arising from strong quantum fluctuations. The one-dimensional (1D) S = 1/2 Heisenberg antiferromagnet is a paradigmatic example, whose low-energy excitations, known as spinons, carry fractional spin S = 1/2. These fractional modes can be reconfined by the application of a staggered magnetic field. Even though considerable progress has been made in the theoretical understanding of such magnets, experimental realizations of this low-dimensional physics are relatively rare. This is particularly true for rare-earth-based magnets because of the large effective spin anisotropy induced by the combination of strong spin-orbit coupling and crystal field splitting. Here, we demonstrate that the rare-earth perovskite YbAlO provides a realization of a quantum spin S = 1/2 chain material exhibiting both quantum critical Tomonaga-Luttinger liquid behavior and spinon confinement-deconfinement transitions in different regions of magnetic field-temperature phase diagram.