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Magneto-structural coupling in [Formula: see text].

Khan A, Kaneko H, Suzuki H, Naher S, Ahsan MH, Islam MA, Basith MA, Alam HM, Saha DK - Springerplus (2015)

Bottom Line: Two interactions, the Jahn-Teller interaction and the spin-Peierls-like interaction are co-exist in [Formula: see text] system.From these measurements the crystal structures are determined.The full width at half maximum and integrated intensity give the fruitful information for magnetic elastic interactions.

View Article: PubMed Central - PubMed

Affiliation: Shahjalal University of Science and Technology, Sylhet, 3114 Bangladesh.

ABSTRACT
[Formula: see text] compound is well Known to show the frustration of the spin structure. At 12 K, [Formula: see text] distorts to break symmetry of the degenerated frustrated spin states by the spin-Peierls-like phase transition, accompanying with the antiferromagnetic ordering. On the other hand, [Formula: see text] undergoes a Jahn-Teller phase transition at a temperature of 310 K, differing from the low temperature ferrimagnetic transition temperature [Formula: see text] of about 60 K. It is also reported that [Formula: see text] shows another magnetic phase transition at about 30 K. These two phase transitions accompanying with the lattice change can be understood by the magneto-elastic interactions. Two interactions, the Jahn-Teller interaction and the spin-Peierls-like interaction are co-exist in [Formula: see text] system. In this report the [Formula: see text] compounds with x = 0.8, 0.6 and 1 are investigated by the X-ray diffraction measurements. From these measurements the crystal structures are determined. The full width at half maximum and integrated intensity give the fruitful information for magnetic elastic interactions.

No MeSH data available.


Related in: MedlinePlus

a Temperature dependence of I.I.1 of (440) reflection in . b Temperature dependence of I.I.2 of {(404) and (044)} reflection in
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Fig3: a Temperature dependence of I.I.1 of (440) reflection in . b Temperature dependence of I.I.2 of {(404) and (044)} reflection in

Mentions: a Temperature dependence of I.I.1 of (440) reflection in . b Temperature dependence of I.I.2 of {(404) and (044)} reflection in


Magneto-structural coupling in [Formula: see text].

Khan A, Kaneko H, Suzuki H, Naher S, Ahsan MH, Islam MA, Basith MA, Alam HM, Saha DK - Springerplus (2015)

a Temperature dependence of I.I.1 of (440) reflection in . b Temperature dependence of I.I.2 of {(404) and (044)} reflection in
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4556724&req=5

Fig3: a Temperature dependence of I.I.1 of (440) reflection in . b Temperature dependence of I.I.2 of {(404) and (044)} reflection in
Mentions: a Temperature dependence of I.I.1 of (440) reflection in . b Temperature dependence of I.I.2 of {(404) and (044)} reflection in

Bottom Line: Two interactions, the Jahn-Teller interaction and the spin-Peierls-like interaction are co-exist in [Formula: see text] system.From these measurements the crystal structures are determined.The full width at half maximum and integrated intensity give the fruitful information for magnetic elastic interactions.

View Article: PubMed Central - PubMed

Affiliation: Shahjalal University of Science and Technology, Sylhet, 3114 Bangladesh.

ABSTRACT
[Formula: see text] compound is well Known to show the frustration of the spin structure. At 12 K, [Formula: see text] distorts to break symmetry of the degenerated frustrated spin states by the spin-Peierls-like phase transition, accompanying with the antiferromagnetic ordering. On the other hand, [Formula: see text] undergoes a Jahn-Teller phase transition at a temperature of 310 K, differing from the low temperature ferrimagnetic transition temperature [Formula: see text] of about 60 K. It is also reported that [Formula: see text] shows another magnetic phase transition at about 30 K. These two phase transitions accompanying with the lattice change can be understood by the magneto-elastic interactions. Two interactions, the Jahn-Teller interaction and the spin-Peierls-like interaction are co-exist in [Formula: see text] system. In this report the [Formula: see text] compounds with x = 0.8, 0.6 and 1 are investigated by the X-ray diffraction measurements. From these measurements the crystal structures are determined. The full width at half maximum and integrated intensity give the fruitful information for magnetic elastic interactions.

No MeSH data available.


Related in: MedlinePlus