Structural and magnetic phase transitions in Pr0.15Sr0.85MnO3 at high pressure

Козленко, Д. П.; Dang, N. T.; Jirák, Z.; Кичанов, С. Е.; Лукин, Е. В.; Савенко, Б. Н.; Dubrovinsky, Leonid; Lathe, C.; Martin, C.

doi:10.1140/epjb/e2010-00284-1

Cited by 9 publications

(2 citation statements)

References 24 publications

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“…Hence, longer Mn-O bond lengths make the AFM super-exchange coupling weaker, whereas they influence the FM double exchange much less. 49 Hence, in our films FM double exchange dominates over AFM super-exchange, leading to the observed FM behavior. Overall, however, the AFM interactions in the film compete with the FM interactions.…”

Section: Resultsmentioning

confidence: 67%

Turning antiferromagnetic Sm_0.34Sr_0.66MnO₃ into a 140 K ferromagnet using a nanocomposite strain tuning approach

et al. 2016

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Ferromagnetic insulating thin films of Sm(0.34)Sr(0.66)MnO3 (SSMO) on (001) SrTiO3 substrates with a T(C) of 140 K were formed in self-assembled epitaxial nanocomposite thin films. High T(C) ferromagnetism was enabled through vertical epitaxy of the SSMO matrix with embedded, stiff, ∼40 nm Sm2O3 nanopillars giving a c/a ratio close to 1 in the SSMO. In contrast, bulk and single phase SSMO films of the same composition have much stronger tetragonal distortion, the bulk having c/a >1 and the films having c/a <1, both of which give rise to antiferromagnetic coupling. The work demonstrates a unique and simple route to creating ferromagnetic insulators for spintronics applications where currently available ferromagnetic insulators are either hard to grow and/or have very low T(C).

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Section: Resultsmentioning

confidence: 67%

Turning antiferromagnetic Sm_0.34Sr_0.66MnO₃ into a 140 K ferromagnet using a nanocomposite strain tuning approach

et al. 2016

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“…Systematic correlations seen with the radius of the dopant atom suggest that the response of electronic structure may be interpreted due to an internal or 'chemical' pressure on the system. Such propositions can naturally be explored by using a combination of pressure and composition and a detailed exploration of this interplay is seen in studies of La x Sr x−1 MnO 3 [141][142][143], La x Ca x−1 MnO 3 [141,[144][145][146][147][148][149][150][151][152], Pr x Na x−1 MnO 3 [150,153], Pr x Ba x−1 MnO 3 [154][155][156] and Pr x Sr x−1 MnO 3 [157,158].…”

Section: Manganites Ferrites and Cobalitesmentioning

confidence: 99%

Future directions in high-pressure neutron diffraction

Guthrie¹

2015

J. Phys.: Condens. Matter

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The ability to manipulate structure and properties using pressure has been well known for many centuries. Diffraction provides the unique ability to observe these structural changes in fine detail on lengthscales spanning atomic to nanometre dimensions. Amongst the broad suite of diffraction tools available today, neutrons provide unique capabilities of fundamental importance. However, to date, the growth of neutron diffraction under extremes of pressure has been limited by the weakness of available sources. In recent years, substantial government investments have led to the construction of a new generation of neutron sources while existing facilities have been revitalized by upgrades. The timely convergence of these bright facilities with new pressure-cell technologies suggests that the field of high-pressure (HP) neutron science is on the cusp of substantial growth. Here, the history of HP neutron research is examined with the hope of gleaning an accurate prediction of where some of these revolutionary capabilities will lead in the near future. In particular, a dramatic expansion of current pressure-temperature range is likely, with corresponding increased scope for extreme-conditions science with neutron diffraction. This increase in coverage will be matched with improvements in data quality. Furthermore, we can also expect broad new capabilities beyond diffraction, including in neutron imaging, small angle scattering and inelastic spectroscopy.

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Multifunctional Magnetic Oxides: Neutron Diffraction Studies

Козленко¹,

Phan²,

Phan³

et al. 2023

Encyclopedia of Materials: Electronics

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Structural and magnetic phase transitions in Pr0.15Sr0.85MnO3 at high pressure

Cited by 9 publications

References 24 publications

Turning antiferromagnetic Sm_0.34Sr_0.66MnO₃ into a 140 K ferromagnet using a nanocomposite strain tuning approach

Turning antiferromagnetic Sm_0.34Sr_0.66MnO₃ into a 140 K ferromagnet using a nanocomposite strain tuning approach

Future directions in high-pressure neutron diffraction

Multifunctional Magnetic Oxides: Neutron Diffraction Studies

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Structural and magnetic phase transitions in Pr0.15Sr0.85MnO3 at high pressure

Cited by 9 publications

References 24 publications

Turning antiferromagnetic Sm0.34Sr0.66MnO3 into a 140 K ferromagnet using a nanocomposite strain tuning approach

Turning antiferromagnetic Sm0.34Sr0.66MnO3 into a 140 K ferromagnet using a nanocomposite strain tuning approach

Future directions in high-pressure neutron diffraction

Multifunctional Magnetic Oxides: Neutron Diffraction Studies

Contact Info

Product

Resources

About

Turning antiferromagnetic Sm_0.34Sr_0.66MnO₃ into a 140 K ferromagnet using a nanocomposite strain tuning approach

Turning antiferromagnetic Sm_0.34Sr_0.66MnO₃ into a 140 K ferromagnet using a nanocomposite strain tuning approach