Questioning Antiferromagnetic Ordering in the Expanded Metal, Li(NH3)4: A Lack of Evidence from μSR

Autor:	Andrew G. Seel, Peter P. Edwards, Peter J. Baker, Christopher A. Howard, Neal T. Skipper, Stephen P. Cottrell
Rok vydání:	2015
Předmět:	Muon chemistry Condensed matter physics Magnetism Phase (matter) Neutron diffraction Relaxation (NMR) Antiferromagnetism chemistry.chemical_element General Materials Science Lithium Physical and Theoretical Chemistry Muon spin spectroscopy
Zdroj:	The Journal of Physical Chemistry Letters. 6:3966-3970
ISSN:	1948-7185
DOI:	10.1021/acs.jpclett.5b01380
Popis:	We present the results of a muon spin relaxation study of the solid phases of the expanded metal, Li(NH3)4. No discernible change in muon depolarization dynamics is witnessed in the lowest temperature phase (≤25 K) of Li(NH3)4, thus suggesting that the prevailing view of antiferromagnetic ordering is incorrect. This is consistent with the most recent neutron diffraction data. Discernible differences in muon behavior are reported for the highest temperature phase of Li(NH3)4 (82-89 K), attributed to the onset of structural dynamics prior to melting.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56ff959ff86defac7e95054b000bf43b https://doi.org/10.1021/acs.jpclett.5b01380 Zobrazit plný text záznamu