Investigations of Fe/Cr multilayer structures with ultrathin iron layers

Дровосеков, А. Б.; Крейнес, Н. М.; Milyaev, M. A.; Romashev, L. N.; Ustinov, V. V.

doi:10.1016/j.jmmm.2004.11.171

Cited by 6 publications

(1 citation statement)

References 2 publications

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“…In all The resulting experimental magnetization curves M (H) and FMR spectra measured at room temperature showed a strong difference in magnetic characteristics for samples with different iron layer thicknesses. The samples with t Fe 3Å demonstrated the properties of regular superlattices, while the samples with t Fe 3Å showed superparamagnetic-like behavior [4].…”

Section: Methodsmentioning

confidence: 94%

Magnetization and FMR studies of [Fe/Cr]_n structures with ultrathin iron layers

Дровосеков

Крейнес

Milyaev

et al. 2006

Phys. Status Solidi (c)

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Magnetic multilayer structures [Fe(tFe)/Cr(tCr)]n with ultrathin (tFe<5Å) iron layers prepared by a molecular beam epitaxy were studied using SQUID-magnetometry and ferromagnetic resonance technique. For the samples with t Fe 3Å, the obtained magnetization curves and resonance spectra are typical for regular magnetic superlattices. On the contrary, the samples with tFe 3Å demonstrate superparamagnetic-like behavior. These samples show a strong temperature dependence of their static and resonance magnetic properties. To explain the obtained results, we propose a theoretical model considering a cluster structure of thin iron layers. Magnetization curves and resonance spectra are calculated using an effective field approximation taking into account an interlayer interaction and cluster size distribution. The calculated dependencies show a qualitative agreement with the experimental data.

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Section: Methodsmentioning

confidence: 94%

Magnetization and FMR studies of [Fe/Cr]_n structures with ultrathin iron layers

Дровосеков

Крейнес

Milyaev

et al. 2006

Phys. Status Solidi (c)

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Spontaneous exchange-bias in Fe/Mn thin multilayers

Ciprian

Carbucicchio

2011

Solid State Communications

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Magnetic states of multilayer Fe∕Cr structures with ultrathin iron layers

Дровосеков

Крейнес

Kholin

2010

Low Temperature Physics

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The evolution of the magnetic properties of Fe∕Cr superlattices is studied as the nominal thickness of the iron layers is reduced to atomic values, when these layers are no longer continuous. The studies were done on multilayer samples with Fe thicknesses of 2–6Å and chromium spacer thicknesses of 10 and 20Å. The samples were prepared by molecular beam epitaxy. The static magnetization and complex magnetic susceptibility were measured and FMR spectra taken. It was found that, depending on the thickness of the Fe layers and temperature, different magnetic phases are realized in the system: supermagnetism, magnetic ordering, and a nonergodic state characterized by a dependence of the magnetization of a sample on its magnetic prehistory. The observed nonergodic phase is found to exhibit spin glass properties. A qualitative phase diagram of the magnetic states of this system is constructed.

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Investigations of Fe/Cr multilayer structures with ultrathin iron layers

Cited by 6 publications

References 2 publications

Magnetization and FMR studies of [Fe/Cr]_n structures with ultrathin iron layers

Magnetization and FMR studies of [Fe/Cr]_n structures with ultrathin iron layers

Spontaneous exchange-bias in Fe/Mn thin multilayers

Magnetic states of multilayer Fe∕Cr structures with ultrathin iron layers

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Investigations of Fe/Cr multilayer structures with ultrathin iron layers

Cited by 6 publications

References 2 publications

Magnetization and FMR studies of [Fe/Cr]n structures with ultrathin iron layers

Magnetization and FMR studies of [Fe/Cr]n structures with ultrathin iron layers

Spontaneous exchange-bias in Fe/Mn thin multilayers

Magnetic states of multilayer Fe∕Cr structures with ultrathin iron layers

Contact Info

Product

Resources

About

Magnetization and FMR studies of [Fe/Cr]_n structures with ultrathin iron layers

Magnetization and FMR studies of [Fe/Cr]_n structures with ultrathin iron layers