O. S. Volkova, Yu. Arango, N. Tristan, V. Kataev, E. A. Gudilin, D. Meier, T. Lorenz, B. Büchner, A. N. Vasiliev, “Nature of low-temperature phase transitions in CaMn7O12”, Pis'ma v Zh. Èksper. Teoret. Fiz., 82:7 (2005), 498–500; JETP Letters, 82:7 (2005), 444

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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2005, Volume 82, Issue 7, Pages 498–500 (Mi jetpl1582)

This article is cited in 26 scientific papers (total in 28 papers)

CONDENSED MATTER

Nature of low-temperature phase transitions in CaMn₇O₁₂

O. S. Volkova^a, Yu. Arango^b, N. Tristan^b, V. Kataev^b, E. A. Gudilin^a, D. Meier^c, T. Lorenz^c, B. Büchner^b, A. N. Vasiliev^a

^a M. V. Lomonosov Moscow State University
^b Leibniz Institute for Solid State and Material Research
^c Institute of Theoretical Physics, University of Cologne

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Abstract: New data on the specific heat, thermal expansion, and magnetization of the CaMn₇O₁₂ phase require a revision of the current concepts of the sequence of phase transitions in this compound. It is found that a spin-glass phase transition occurs in CaMn₇O₁₂ at T _M = 49 K, whereas the transition at T _S = 89 K exhibits the features of a first-order phase transition and thereby is apparently of structural origin. In the range T _M < T< T _S, the CaMn₇O₁₂ compound exhibits negative thermal expansion, which is also indicative of structural changes.

Received: 17.08.2005

English version:
Journal of Experimental and Theoretical Physics Letters, 2005, Volume 82, Issue 7, Pages 444–446
DOI: https://doi.org/10.1134/1.2142874

Bibliographic databases:

Document Type: Article

PACS: 65.40.-b, 75.47.Lx

Language: Russian

Citation: O. S. Volkova, Yu. Arango, N. Tristan, V. Kataev, E. A. Gudilin, D. Meier, T. Lorenz, B. Büchner, A. N. Vasiliev, “Nature of low-temperature phase transitions in CaMn₇O₁₂”, Pis'ma v Zh. Èksper. Teoret. Fiz., 82:7 (2005), 498–500; JETP Letters, 82:7 (2005), 444–446

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Discussions

Nature of low-temperature phase transitions in CaMn₇O₁₂
O. S. Volkova, Yu. Arango, N. Tristan, V. Kataev, E. A. Gudilin, D. Meier, T. Lorenz, B. Büchner, A. N. Vasiliev
Pis'ma v Zh. Èksper. Teoret. Fiz., 2005, 82:7, 498–500
Comment on the paper "Nature of Low-Temperature Phase Transitions in $\mathrm{CaMn_7O_{12}}$"
R. Przenioslo, I. Sosnowska
Pis'ma v Zh. Èksper. Teoret. Fiz., 2006, 83:5, 261
Reply to the comment “Nature of low-temperature…”
O. S. Volkova, Yu. Arango, N. Tristan, V. Kataev, E. A. Goodilin, D. Meier, T. Lorenz, B. Buecher, A. V. Vasil'ev
Pis'ma v Zh. Èksper. Teoret. Fiz., 2006, 83:5, 262–1

This publication is cited in the following 28 articles:

Citing articles in Google Scholar: Russian citations, English citations
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Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki

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