Spin gap in Tl2Ru2O7 and the possible formation of Haldane chains in three-dimensional crystals
Seongsu Lee
1
,
J.-G. Park
1, 2
,
D T Adroja
3
,
D Khomskii
4
,
S Streltsov
5
,
K. A. McEwen
6
,
H. Sakai
7
,
K Yoshimura
7
,
V.I. Anisimov
5
,
D. Mori
8
,
R. Kanno
8
,
R. Ibberson
3
1
4
Physikalisches Institut, University of Köln, Köln, Germany
|
Publication type: Journal Article
Publication date: 2006-05-14
scimago Q1
wos Q1
SJR: 14.204
CiteScore: 61.8
Impact factor: 38.5
ISSN: 14761122, 14764660
DOI:
10.1038/nmat1605
PubMed ID:
16699512
General Chemistry
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
Dimensionality is one of the most important parameters of physical phenomena. Only two things determine the universality class of a phase transition: the dimensionality of a given system and the symmetry of the order parameter. In most cases, the dimensionality of a substance is predetermined by its crystal structure. Examples in which the effective dimensionality is reduced are quite rare. Here we show that the three-dimensional cubic system of Tl2Ru2O7 most probably evolves into a one-dimensional spin-one Haldane system with a spin gap below 120 K, accompanied by anomalies in the structure, resistivity and susceptibility. We argue that these anomalies are due to an orbital ordering of Ru 4d electrons, with a strong coupling among three degrees of freedom: orbital, spin and lattice. Our work provides a unique example of the spontaneous formation of Haldane system with an insight into the intriguing interplay of different degrees of freedom.
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119
Total citations:
119
Citations from 2024:
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(9.24%)
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Lee S. et al. Spin gap in Tl2Ru2O7 and the possible formation of Haldane chains in three-dimensional crystals // Nature Materials. 2006. Vol. 5. No. 6. pp. 471-476.
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Lee S., Park J., Adroja D. T., Khomskii D., Streltsov S., McEwen K. A., Sakai H., Yoshimura K., Anisimov V., Mori D., Kanno R., Ibberson R. Spin gap in Tl2Ru2O7 and the possible formation of Haldane chains in three-dimensional crystals // Nature Materials. 2006. Vol. 5. No. 6. pp. 471-476.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1038/nmat1605
UR - https://doi.org/10.1038/nmat1605
TI - Spin gap in Tl2Ru2O7 and the possible formation of Haldane chains in three-dimensional crystals
T2 - Nature Materials
AU - Lee, Seongsu
AU - Park, J.-G.
AU - Adroja, D T
AU - Khomskii, D
AU - Streltsov, S
AU - McEwen, K. A.
AU - Sakai, H.
AU - Yoshimura, K
AU - Anisimov, V.I.
AU - Mori, D.
AU - Kanno, R.
AU - Ibberson, R.
PY - 2006
DA - 2006/05/14
PB - Springer Nature
SP - 471-476
IS - 6
VL - 5
PMID - 16699512
SN - 1476-1122
SN - 1476-4660
ER -
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BibTex (up to 50 authors)
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@article{2006_Lee,
author = {Seongsu Lee and J.-G. Park and D T Adroja and D Khomskii and S Streltsov and K. A. McEwen and H. Sakai and K Yoshimura and V.I. Anisimov and D. Mori and R. Kanno and R. Ibberson},
title = {Spin gap in Tl2Ru2O7 and the possible formation of Haldane chains in three-dimensional crystals},
journal = {Nature Materials},
year = {2006},
volume = {5},
publisher = {Springer Nature},
month = {may},
url = {https://doi.org/10.1038/nmat1605},
number = {6},
pages = {471--476},
doi = {10.1038/nmat1605}
}
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MLA
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Lee, Seongsu, et al. “Spin gap in Tl2Ru2O7 and the possible formation of Haldane chains in three-dimensional crystals.” Nature Materials, vol. 5, no. 6, May. 2006, pp. 471-476. https://doi.org/10.1038/nmat1605.
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