Search: onr:"swepub:oai:research.chalmers.se:871f1c74-26ed-410c-ab94-a4cfa32c5d25" >
Neutron powder diff...
Neutron powder diffraction study of NaMn2O4 and Li0.92Mn2O4: Insights on spin-charge-orbital ordering
-
- Matsubara, N. (author)
- Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
-
- Nocerino, E. (author)
- Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
-
- Kamazawa, K. (author)
- Comprehensive Research Organization for Science and Society (CROSS)
-
show more...
-
- Forslund, O. K. (author)
- Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
-
- Sassa, Yasmine, 1981 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Keller, L. (author)
- Paul Scherrer Institut
-
- Sikolenko, V. V. (author)
- Joint Institute for Nuclear Research (JINR), Russian Federation,Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT)
-
- Pomjakushin, V (author)
- Paul Scherrer Institut
-
- Sakurai, H. (author)
- National Institute for Materials Science (NIMS)
-
- Sugiyama, Jun (author)
- Comprehensive Research Organization for Science and Society (CROSS)
-
- Mansson, M. (author)
- Kungliga Tekniska Högskolan (KTH),Royal Institute of Technology (KTH)
-
show less...
-
(creator_code:org_t)
- 2020
- 2020
- English.
-
In: Physical Review Research. - 2643-1564. ; 2:4
- Related links:
-
https://research.cha... (primary) (free)
-
show more...
-
https://doi.org/10.1...
-
https://research.cha...
-
show less...
Abstract
Subject headings
Close
- High-pressure synthesized quasi-one-dimensional NaMn2O4 and Li0.92Mn2O4 are both antiferromagnetic insulators. Here their atomic and magnetic structures are investigated using neutron powder diffraction. The present crystal structural analyses of NaMn2O4 reveal that a Mn3+/Mn4+ charge-ordering state exists even at low temperature (down to 1.5 K). It is evident that one of the Mn sites shows a strongly distorted Mn3+ octahedron due to the Jahn-Teller effect. Above T-N = 35 K, a two-dimensional short-range correlation is observed, as indicated by asymmetric diffuse scattering. Below T-N, two antiferromagnetic transitions are observed: (i) a commensurate long-range Mn3+ spin ordering below T-N1 = 35 K and (ii) an incommensurate Mn4+ spin ordering below T-N2 = 11 K. Surprisingly, the two antiferromagnetic orders are found to be independent of each other. The commensurate magnetic structure (k(C) = 0.5, 0.5, 0.5) follows the magnetic anisotropy of the local easy axes of Mn3+, while the incommensurate Mn4+ one shows a spin-density-wave or a cycloidal order with k(IC) = (0, 0, 0.216). For Li0.92Mn2O4, on the other hand, the absence of a long-range spin-ordered state is confirmed down to 1.5 K.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Matsubara, N.
-
Nocerino, E.
-
Kamazawa, K.
-
Forslund, O. K.
-
Sassa, Yasmine, ...
-
Keller, L.
-
show more...
-
Sikolenko, V. V.
-
Pomjakushin, V
-
Sakurai, H.
-
Sugiyama, Jun
-
Mansson, M.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Inorganic Chemis ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Other Physics To ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Condensed Matter ...
- Articles in the publication
-
Physical Review ...
- By the university
-
Chalmers University of Technology