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Title: Magnetism and local symmetry breaking in a Mott insulator with strong spin orbit interactions

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms14407· OSTI ID:1347556
 [1];  [1];  [1];  [2];  [2];  [3];  [3];  [1]
  1. Brown Univ., Providence, RI (United States)
  2. National High Magnetic Field Lab., Tallahassee, FL (United States)
  3. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)

Study of the combined effects of strong electronic correlations with spin-orbit coupling (SOC) represents a central issue in quantum materials research. Predicting emergent properties represents a huge theoretical problem since the presence of SOC implies that the spin is not a good quantum number. Existing theories propose the emergence of a multitude of exotic quantum phases, distinguishable by either local point symmetry breaking or local spin expectation values, even in materials with simple cubic crystal structure such as Ba2NaOsO6. Experimental tests of these theories by local probes are highly sought for. Our local measurements designed to concurrently probe spin and orbital/lattice degrees of freedom of Ba2NaOsO6 provide such tests. As a result, we show that a canted ferromagnetic phase which is preceded by local point symmetry breaking is stabilized at low temperatures, as predicted by quantum theories involving multipolar spin interactions.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1347556
Journal Information:
Nature Communications, Vol. 8; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 45 works
Citation information provided by
Web of Science

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Cited By (12)

[OsF 6 ] x : Molecular Models for Spin-Orbit Entangled Phenomena journal July 2017
Phase transition preceding magnetic long-range order in the double perovskite Ba 2 NaOsO 6 journal July 2019
Ordering of hidden multipoles in spin-orbit entangled 5 d 1 Ta chlorides journal July 2019
Anisotropic field-induced ordering in the triangular-lattice quantum spin liquid NaYbSe 2 journal December 2019
Octupolar order in d -orbital Mott insulators journal February 2020
Nature of lattice distortions in the cubic double perovskite Ba 2 NaOsO 6 journal June 2018
Field-induced instability of the quantum spin liquid ground state in the J eff = 1 2 triangular-lattice compound NaYbO 2 journal May 2019
Spin-Orbit Dimers and Noncollinear Phases in d 1 Cubic Double Perovskites journal May 2017
Octupolar versus Néel Order in Cubic 5 d 2 Double Perovskites journal February 2020
Frustrated Magnetism in Triangular Lattice TlYbS2 Crystals Grown via Molten Flux journal February 2020
Octupolar order in d-orbital Mott insulators text January 2019
Frustrated Magnetism in Triangular Lattice TlYbS$_2$ Crystals Grown via Molten Flux text January 2020