Magnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite

Abstract The tri-layer La $$_{3-3x}$$ 3 - 3 x Sr $$_{1+3x}$$ 1 + 3 x Mn $$_{3}$$ 3 O $$_{10}$$ 10 manganites of Ruddlesden–Popper (RP) series are naturally arranged layered structure with alternate stacking of ω-MnO $$_2$$ 2 (ω = 3) planes and rock-salt type block layers (La, Sr) $$_2$$ 2 O $$_2$$ 2...

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Autores principales:	Jeetendra Kumar Tiwari, Birendra Kumar, Harish Chandr Chauhan, Subhasis Ghosh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a96a0106526b48aaba85a0c43fb7cbc4
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spelling	oai:doaj.org-article:a96a0106526b48aaba85a0c43fb7cbc42021-12-02T15:39:58ZMagnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite10.1038/s41598-021-93290-w2045-2322https://doaj.org/article/a96a0106526b48aaba85a0c43fb7cbc42021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93290-whttps://doaj.org/toc/2045-2322Abstract The tri-layer La $$_{3-3x}$$ 3 - 3 x Sr $$_{1+3x}$$ 1 + 3 x Mn $$_{3}$$ 3 O $$_{10}$$ 10 manganites of Ruddlesden–Popper (RP) series are naturally arranged layered structure with alternate stacking of ω-MnO $$_2$$ 2 (ω = 3) planes and rock-salt type block layers (La, Sr) $$_2$$ 2 O $$_2$$ 2 along c-axis. The dimensionality of the RP series manganites depends on the number of perovskite layers and significantly affects the magnetic and transport properties of the system. Generally, when a ferromagnetic material undergoes a magnetic phase transition from ferromagnetic to paramagnetic state, the magnetic moment of the system becomes zero above the transition temperature (T $$ _{C} $$ C ). However, the tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 shows non-zero magnetic moment above T $$ _{C} $$ C and also another transition at higher temperature T $$ ^{*} \approx $$ ∗ ≈ 263 K. The non-zero magnetization above T $$ _{C} $$ C emphasizes that the phase transition in tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 not a ferromagnetic to paramagnetic state. We show here the non-zero magnetic moment above T $$ _{C} $$ C is due to the quasi-two-dimensional nature of the tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 manganite. The scaling of the magnetic entropy change confirms the second-order phase transition and the critical behavior of phase transition has been studied around T $$_C$$ C to understand the low dimensional magnetism in tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 . We have obtained the critical exponents for tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 , which belong to the short-range two-dimensional (2D)-Ising universality class. The low dimensional magnetism in tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 manganite is also explained with the help of renormalization group theoretical approach for short-range 2D-Ising systems. It has been shown that the layered structure of tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 results in three different types of interactions intra-planer ( $$ J_{ab} $$ J ab ), intra-tri-layer ( $$ J_{c} $$ J c ) and inter-tri-layer ( $$ J' $$ J ′ ) such that $$ J_{ab}> J_{c}>> J' $$ J ab > J c > > J ′ and competition among these give rise to the canted antiferromagnetic spin structure above T $$ _{C} $$ C . Based on the similar magnetic interaction in bi-layer manganite, we propose that the tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 should be able to host the skyrmion below T $$ _{C} $$ C due to its strong anisotropy and layered structure.Jeetendra Kumar TiwariBirendra KumarHarish Chandr ChauhanSubhasis GhoshNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jeetendra Kumar Tiwari Birendra Kumar Harish Chandr Chauhan Subhasis Ghosh Magnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite
description	Abstract The tri-layer La $$_{3-3x}$$ 3 - 3 x Sr $$_{1+3x}$$ 1 + 3 x Mn $$_{3}$$ 3 O $$_{10}$$ 10 manganites of Ruddlesden–Popper (RP) series are naturally arranged layered structure with alternate stacking of ω-MnO $$_2$$ 2 (ω = 3) planes and rock-salt type block layers (La, Sr) $$_2$$ 2 O $$_2$$ 2 along c-axis. The dimensionality of the RP series manganites depends on the number of perovskite layers and significantly affects the magnetic and transport properties of the system. Generally, when a ferromagnetic material undergoes a magnetic phase transition from ferromagnetic to paramagnetic state, the magnetic moment of the system becomes zero above the transition temperature (T $$ _{C} $$ C ). However, the tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 shows non-zero magnetic moment above T $$ _{C} $$ C and also another transition at higher temperature T $$ ^{*} \approx $$ ∗ ≈ 263 K. The non-zero magnetization above T $$ _{C} $$ C emphasizes that the phase transition in tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 not a ferromagnetic to paramagnetic state. We show here the non-zero magnetic moment above T $$ _{C} $$ C is due to the quasi-two-dimensional nature of the tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 manganite. The scaling of the magnetic entropy change confirms the second-order phase transition and the critical behavior of phase transition has been studied around T $$_C$$ C to understand the low dimensional magnetism in tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 . We have obtained the critical exponents for tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 , which belong to the short-range two-dimensional (2D)-Ising universality class. The low dimensional magnetism in tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 manganite is also explained with the help of renormalization group theoretical approach for short-range 2D-Ising systems. It has been shown that the layered structure of tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 results in three different types of interactions intra-planer ( $$ J_{ab} $$ J ab ), intra-tri-layer ( $$ J_{c} $$ J c ) and inter-tri-layer ( $$ J' $$ J ′ ) such that $$ J_{ab}> J_{c}>> J' $$ J ab > J c > > J ′ and competition among these give rise to the canted antiferromagnetic spin structure above T $$ _{C} $$ C . Based on the similar magnetic interaction in bi-layer manganite, we propose that the tri-layer La $$_{2.1}$$ 2.1 Sr $$_{1.9}$$ 1.9 Mn $$_{3}$$ 3 O $$_{10}$$ 10 should be able to host the skyrmion below T $$ _{C} $$ C due to its strong anisotropy and layered structure.
format	article
author	Jeetendra Kumar Tiwari Birendra Kumar Harish Chandr Chauhan Subhasis Ghosh
author_facet	Jeetendra Kumar Tiwari Birendra Kumar Harish Chandr Chauhan Subhasis Ghosh
author_sort	Jeetendra Kumar Tiwari
title	Magnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite
title_short	Magnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite
title_full	Magnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite
title_fullStr	Magnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite
title_full_unstemmed	Magnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite
title_sort	magnetism in quasi-two-dimensional tri-layer la2.1sr1.9mn3o10 manganite
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a96a0106526b48aaba85a0c43fb7cbc4
work_keys_str_mv	AT jeetendrakumartiwari magnetisminquasitwodimensionaltrilayerla21sr19mn3o10manganite AT birendrakumar magnetisminquasitwodimensionaltrilayerla21sr19mn3o10manganite AT harishchandrchauhan magnetisminquasitwodimensionaltrilayerla21sr19mn3o10manganite AT subhasisghosh magnetisminquasitwodimensionaltrilayerla21sr19mn3o10manganite
_version_	1718385893144788992

Magnetism in quasi-two-dimensional tri-layer La2.1Sr1.9Mn3O10 manganite

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