Structural Mechanisms and the Thermodynamic Description of the Isosymmetric Orbital Ordering in Rare-Earth Manganites
The observed specific features of the orbital phase transition in AMnO 3 (A = La, Pr, …, Lu) are shown to be due to the appearance, at high temperatures, of rotational distortions of the cubic lattice, which cause anion displacements, which induce an “internal field” coinciding in symmetry with the...
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| Veröffentlicht in: | Physics of the solid state 2019-11, Vol.61 (11), p.2026-2033 |
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| container_title | Physics of the solid state |
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| creator | Ivliev, M. P. Sakhnenko, V. P. |
| description | The observed specific features of the orbital phase transition in AMnO
3
(A = La, Pr, …, Lu) are shown to be due to the appearance, at high temperatures, of rotational distortions of the cubic lattice, which cause anion displacements, which induce an “internal field” coinciding in symmetry with the order parameter, which describe the ordering of octahedra distorted due to the Jahn–Teller effect (orbital ordering). The effect of this “field” substantially determines the orbital ordering type, its temperature, and the phase transition order. The comparative analysis of the orbitally ordered states is performed for the entire AMnO
3
series in both the framework of the phenomenological theory of phase transitions and on the base of the three-minimum multi-sublattice model proposed in this report. The peculiarities of magnetic transitions in manganites determined by the specific features of their structures are discussed. |
| doi_str_mv | 10.1134/S1063783419110180 |
| format | Article |
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3
(A = La, Pr, …, Lu) are shown to be due to the appearance, at high temperatures, of rotational distortions of the cubic lattice, which cause anion displacements, which induce an “internal field” coinciding in symmetry with the order parameter, which describe the ordering of octahedra distorted due to the Jahn–Teller effect (orbital ordering). The effect of this “field” substantially determines the orbital ordering type, its temperature, and the phase transition order. The comparative analysis of the orbitally ordered states is performed for the entire AMnO
3
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3
(A = La, Pr, …, Lu) are shown to be due to the appearance, at high temperatures, of rotational distortions of the cubic lattice, which cause anion displacements, which induce an “internal field” coinciding in symmetry with the order parameter, which describe the ordering of octahedra distorted due to the Jahn–Teller effect (orbital ordering). The effect of this “field” substantially determines the orbital ordering type, its temperature, and the phase transition order. The comparative analysis of the orbitally ordered states is performed for the entire AMnO
3
series in both the framework of the phenomenological theory of phase transitions and on the base of the three-minimum multi-sublattice model proposed in this report. The peculiarities of magnetic transitions in manganites determined by the specific features of their structures are discussed.</description><subject>ANIONS</subject><subject>Comparative analysis</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>Cubic lattice</subject><subject>CUBIC LATTICES</subject><subject>Dielectrics</subject><subject>Displacements (lattice)</subject><subject>INTERACTIONS</subject><subject>Jahn-Teller effect</subject><subject>MAGNETIC PROPERTIES</subject><subject>Magnetic transitions</subject><subject>MANGANATES</subject><subject>Manganites</subject><subject>ORDER PARAMETERS</subject><subject>PHASE TRANSFORMATIONS</subject><subject>Phase transitions</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>RARE EARTH COMPOUNDS</subject><subject>Rare earth elements</subject><subject>Solid State Physics</subject><subject>TEMPERATURE RANGE 0400-1000 K</subject><subject>THERMODYNAMICS</subject><issn>1063-7834</issn><issn>1090-6460</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kcFq3DAQhk1JoUnaB-hN0FMP3mgs2ZaPIU3bhYSFbHoWijxeK6yl7UiG7NtX2w2EEIJAGma-_9cwUxRfgS8AhLxYA29Eq4SEDoCD4h-KU-AdLxvZ8JND3IjyUP9UnMX4yDkA1N1pMa8TzTbNZLbsFu1ovItTZMb3LI3I7kekKfR7byZn2Q-MltwuueBZGP4DyxjifpowUa6v6MGlbLSiHsn5DXOe3RnC8tpQGtmt8ZvsnzB-Lj4OZhvxy_N7Xvz5eX1_9bu8Wf1aXl3elFZCm0pjUdpeGFBKGVNLlErUbQs1l9LKfKkHW6u-7VTVgBSVbFTVDiInO5llRpwX346-ISano81_29EG79EmXVVdVXNRv1A7Cn9njEk_hpl8bkxXAjKW_WWmFkdqY7aonR9CImPz6THPJngcXM5fNlx2olEdZMH3V4LMJHxKGzPHqJfru9csHFlLIUbCQe_ITYb2Grg-LFi_WXDWVEdN3B2GjfTS9vuif9wvpYs</recordid><startdate>20191101</startdate><enddate>20191101</enddate><creator>Ivliev, M. P.</creator><creator>Sakhnenko, V. P.</creator><general>Pleiades Publishing</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>OTOTI</scope></search><sort><creationdate>20191101</creationdate><title>Structural Mechanisms and the Thermodynamic Description of the Isosymmetric Orbital Ordering in Rare-Earth Manganites</title><author>Ivliev, M. P. ; Sakhnenko, V. P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c417t-ace4cd3a1888aa54e48357715044c40448bc58d79826143246827f3bc594d3aa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>ANIONS</topic><topic>Comparative analysis</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>Cubic lattice</topic><topic>CUBIC LATTICES</topic><topic>Dielectrics</topic><topic>Displacements (lattice)</topic><topic>INTERACTIONS</topic><topic>Jahn-Teller effect</topic><topic>MAGNETIC PROPERTIES</topic><topic>Magnetic transitions</topic><topic>MANGANATES</topic><topic>Manganites</topic><topic>ORDER PARAMETERS</topic><topic>PHASE TRANSFORMATIONS</topic><topic>Phase transitions</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>RARE EARTH COMPOUNDS</topic><topic>Rare earth elements</topic><topic>Solid State Physics</topic><topic>TEMPERATURE RANGE 0400-1000 K</topic><topic>THERMODYNAMICS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ivliev, M. P.</creatorcontrib><creatorcontrib>Sakhnenko, V. P.</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>OSTI.GOV</collection><jtitle>Physics of the solid state</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ivliev, M. P.</au><au>Sakhnenko, V. P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structural Mechanisms and the Thermodynamic Description of the Isosymmetric Orbital Ordering in Rare-Earth Manganites</atitle><jtitle>Physics of the solid state</jtitle><stitle>Phys. Solid State</stitle><date>2019-11-01</date><risdate>2019</risdate><volume>61</volume><issue>11</issue><spage>2026</spage><epage>2033</epage><pages>2026-2033</pages><issn>1063-7834</issn><eissn>1090-6460</eissn><abstract>The observed specific features of the orbital phase transition in AMnO
3
(A = La, Pr, …, Lu) are shown to be due to the appearance, at high temperatures, of rotational distortions of the cubic lattice, which cause anion displacements, which induce an “internal field” coinciding in symmetry with the order parameter, which describe the ordering of octahedra distorted due to the Jahn–Teller effect (orbital ordering). The effect of this “field” substantially determines the orbital ordering type, its temperature, and the phase transition order. The comparative analysis of the orbitally ordered states is performed for the entire AMnO
3
series in both the framework of the phenomenological theory of phase transitions and on the base of the three-minimum multi-sublattice model proposed in this report. The peculiarities of magnetic transitions in manganites determined by the specific features of their structures are discussed.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1063783419110180</doi><tpages>8</tpages></addata></record> |
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| ispartof | Physics of the solid state, 2019-11, Vol.61 (11), p.2026-2033 |
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| subjects | ANIONS Comparative analysis CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Cubic lattice CUBIC LATTICES Dielectrics Displacements (lattice) INTERACTIONS Jahn-Teller effect MAGNETIC PROPERTIES Magnetic transitions MANGANATES Manganites ORDER PARAMETERS PHASE TRANSFORMATIONS Phase transitions Physics Physics and Astronomy RARE EARTH COMPOUNDS Rare earth elements Solid State Physics TEMPERATURE RANGE 0400-1000 K THERMODYNAMICS |
| title | Structural Mechanisms and the Thermodynamic Description of the Isosymmetric Orbital Ordering in Rare-Earth Manganites |
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