High-field neutron diffraction study of magnonic Bose-Einstein condensate and magnonic liquid in the quantum dimer system Sr3Cr2O8
Exotic quantum-spin states and quantum phase transitions can be induced by applying magnetic fields. Sr3Cr2O8 has strong antiferromagnetic interactions which couple the spins into dimers. The magnetic interdimer interaction can form magnetic quasiparticles (triplons) in the network of dimers. An external field can condensate this magnons in the ground state. Our temperature-dependent measurements of magnetisation and ultrasound velocity in high magnetic fields revealed not only a Bose-Einstein condensation at 32T, but also a novel phase above BEC: a coherent magnonic liquid phase. We have succeed investigating the magnetic peak in the BEC state at 2 K in our previous proposal. Now, we propose to perform similar measurements at higher temperatures and investigate the magnonic liquid phase.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
QUINTERO CASTRO Diana Lucia; BHAT KADEMANE Abhijit; BOURDAROT Frederic; DUC Fabienne; ISLAM A T M Nazmul; Alsu Gazizulina; KOLNES Nils Henrik; Bella Lake; PERRIN Florian; PROKES Karel; WANG Zhe; YOKAICHIYA FABIANO and ZHERLITSYN Sergei. (2019). High-field neutron diffraction study of magnonic Bose-Einstein condensate and magnonic liquid in the quantum dimer system Sr3Cr2O8. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-41-991
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.