Pressure effect on the magnetic phase diagram of La1.4Sr1.6Mn2O7

Pressure effect on the magnetic phase diagram of La1.4Sr1.6Mn2O7. Kamenev, K., V., Lees, M., R., Balakrishnan, G., Paul, D., M., K., McIntyre, G., J., & Arnold, Z. Volume 48 , Springer, 2001.

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Magnetic pressure-temperature phase diagram of La1.4Sr1.6Mn2O7 layered manganite has been studied using magnetization measurements and neutron diffraction an single crystals. It has been found that La1.4Sr1.6Mn2O7 is a quasi two-dimensional ferromagnet at temperatures as high as 340 K. At lower temperatures it undergoes a series of phase transitions into magnetic phases with three-dimensional long-range order. At 90 K La1.4Sr1.6Mn2O7 becomes an antiferromagnet and at 65 K it undergoes a transition into a ferromagnetic phase. It has also been shown that applied pressure enhances the long-range antiferromagnetic correlations between Mn2O9 bilayers. These findings have been explained in terms of numerical calculations, taking into account pressure-induced electron transfer between 3d orbitals of the Mn ions.

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 abstract = {Magnetic pressure-temperature phase diagram of La1.4Sr1.6Mn2O7 layered manganite has been studied using magnetization measurements and neutron diffraction an single crystals. It has been found that La1.4Sr1.6Mn2O7 is a quasi two-dimensional ferromagnet at temperatures as high as 340 K. At lower temperatures it undergoes a series of phase transitions into magnetic phases with three-dimensional long-range order. At 90 K La1.4Sr1.6Mn2O7 becomes an antiferromagnet and at 65 K it undergoes a transition into a ferromagnetic phase. It has also been shown that applied pressure enhances the long-range antiferromagnetic correlations between Mn2O9 bilayers. These findings have been explained in terms of numerical calculations, taking into account pressure-induced electron transfer between 3d orbitals of the Mn ions.},
 bibtype = {book},
 author = {Kamenev, K V and Lees, M R and Balakrishnan, G and Paul, D M K and McIntyre, G J and Arnold, Z}
}

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