دورية أكاديمية
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Understanding Complex Interplay among Different Instabilities in Multiferroic BiMn 7 O 12 Using 57 Fe Probe Mössbauer Spectroscopy.

التفاصيل البيبلوغرافية
العنوان: Understanding Complex Interplay among Different Instabilities in Multiferroic BiMn 7 O 12 Using 57 Fe Probe Mössbauer Spectroscopy.
المؤلفون: Soboleva IS; Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia., Nitsenko VI; Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia., Sobolev AV; Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.; Department of Chemistry, MSU-BIT University, Shenzhen 517182, China., Smirnova MN; Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.; Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences (RAS), Moscow 119991, Russia., Belik AA; Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba 305-0044, Ibaraki, Japan., Presniakov IA; Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.; Department of Chemistry, MSU-BIT University, Shenzhen 517182, China.
المصدر: International journal of molecular sciences [Int J Mol Sci] 2024 Jan 24; Vol. 25 (3). Date of Electronic Publication: 2024 Jan 24.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI Country of Publication: Switzerland NLM ID: 101092791 Publication Model: Electronic Cited Medium: Internet ISSN: 1422-0067 (Electronic) Linking ISSN: 14220067 NLM ISO Abbreviation: Int J Mol Sci Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI, [2000-
مواضيع طبية MeSH: Spectroscopy, Mossbauer*, Ions
مستخلص: Here, we report the results of a Mössbauer study on hyperfine electrical and magnetic interactions in quadruple perovskite BiMn 7 O 12 doped with 57 Fe probes. Measurements were performed in the temperature range of 10 K < T < 670 K, wherein BiMn 6.96 57 Fe 0.04 O 12 undergoes a cascade of structural ( T 1 ≈ 590 K, T 2 ≈ 442 K, and T 3 ≈ 240 K) and magnetic ( T N1 ≈ 57 K, T N2 ≈ 50 K, and T N3 ≈ 24 K) phase transitions. The analysis of the electric field gradient (EFG) parameters, including the dipole contribution from Bi 3+ ions, confirmed the presence of the local dipole moments p Bi , which are randomly oriented in the paraelectric cubic phase ( T > T 1 ). The unusual behavior of the parameters of hyperfine interactions between T 1 and T 2 was attributed to the dynamic Jahn-Teller effect that leads to the softening of the orbital mode of Mn 3+ ions. The parameters of the hyperfine interactions of 57 Fe in the phases with non-zero spontaneous electrical polarization ( P s ), including the P 1 ↔ Im transition at T 3 , were analyzed. On the basis of the structural data and the quadrupole splitting Δ( T ) derived from the 57 Fe Mössbauer spectra, the algorithm, based on the Born effective charge model, is proposed to describe P s ( T ) dependence. The P s ( T ) dependence around the Im ↔ I 2/ m phase transition at T 2 is analyzed using the effective field approach. Possible reasons for the complex relaxation behavior of the spectra in the magnetically ordered states ( T < T N1 ) are also discussed.
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معلومات مُعتمدة: 19-73-10034 Russian Scientific Foundation
فهرسة مساهمة: Keywords: Jahn–Teller effect; Mössbauer spectroscopy; manganites; multiferroics
المشرفين على المادة: 0 (Ions)
تواريخ الأحداث: Date Created: 20240210 Date Completed: 20240214 Latest Revision: 20240214
رمز التحديث: 20240214
مُعرف محوري في PubMed: PMC10855744
DOI: 10.3390/ijms25031437
PMID: 38338715
قاعدة البيانات: MEDLINE
الوصف
تدمد:1422-0067
DOI:10.3390/ijms25031437