Magnetic Ordering and Critical Thickness of Ultrathin Iron Films

Lee, E. L.; Bolduc, P. E.; Violet, C.E.

doi:10.1103/physrevlett.13.800

Cited by 63 publications

(16 citation statements)

References 16 publications

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“…T c (D) functions of Fe, Co, and Ni transition nanocrystals, rare-earth nanometals like Gd and Tb, and their alloys and compounds have been investigated experimentally. Commonly, the monolayer or multilayer magnetic films are epitaxially grown on or between nonmagnetic materials like noble metals, nonmagnetic transition metals, semiconductors, as well as insulator substrates, such as Fe/SiO [93], Fe/Cu(001) [94], Fe/Ag(001) [94] [107], and Gd/Y(0001) [108] systems. Other low-dimensional nanocrystals, i.e.…”

Section: Experiments Resultsmentioning

confidence: 99%

“…This is the case of T c (D) function of Fe nanocrystals shown in Fig. (4a) [93][94][95][96][97][98]. It should be noted that although T c ( ) [123] and S m ( ) [48] values of alloys are roughly estimated by their algebraic sum of elements, however, Fig.…”

Section: Verification Of T C (D) Functionmentioning

confidence: 97%

“…The good agreement between Eq. (36) and the experimental data implies that the depression of T c (D) of Fe, Co and Ni, CoNi alloy epitaxial films on nonmagnetic metallic substrates should mainly be (11) and (35) with Js J i , J sub 0, the symbols [93], [94], [95], [96], [97], and [98] (11) and (35) with J s J i , J sub 0, the symbols [99], [100,101], [101], [102] denote the experimental evidences of Co/Cu(100), Co/Cu(111), Co/Cu(001) epitaxial films and [101], [101] and [101] attributed to the free surface effect of nanocrystals because of the reduction in the spin interaction number at the surface in comparison with that in the interior [113,[121][122][123][124]. Although Eq.…”

Section: Verification Of T C (D) Functionmentioning

confidence: 99%

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Size Dependence of Structures and Properties of Magnetic Materials

Jiang¹,

Lang²

2007

TONANOJ

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Due to the involvement of high portion of atomic coordination imperfection in surfaces and interfaces, the properties of magnetic nanocrystals dramatically differ from that of the corresponding bulk counterparts, which have led to a surge in both experimental and theoretical investigations in the past decades. This review summarizes the studies for these size-dependent magnetic properties, and additional thermal or phase stabilities, and mechanical properties. To interpret the above phenomena, a thermodynamic model for the size dependence and interface dependences of these properties is described, which is based on Lindemann s criterion for melting, Mott s expression for the vibrational melting entropy, and Shi s model for the size-dependent melting temperature. The model without any adjustable parameter is confirmed by a large number of experimental results, and helps us to understand the structures and properties of the magnetic nanocrystals. Moreover, other theoretical works on the above properties are also mentioned and commented.

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Section: Experiments Resultsmentioning

confidence: 99%

Section: Verification Of T C (D) Functionmentioning

confidence: 97%

Section: Verification Of T C (D) Functionmentioning

confidence: 99%

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Size Dependence of Structures and Properties of Magnetic Materials

Jiang¹,

Lang²

2007

TONANOJ

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“…It have been demonstrated that the magnetic moment of Fe monolayer evaporated on Ag(OO 1) or Cu(OO 1) is larger than that of Fe balk [3]. And there are various investigations of the under~ layer thickness dependence of the magnetic moment in polycrystal Fe ultra thin films [4][5][6]. At the beginning of the depositions, structure of the films have diverse forms according to the wetness, the surface diffusion or absorption for the substrates [7].…”

Section: Inlroductionmentioning

confidence: 99%

Magnetic Properties and Surface Morphology of Fe Thin Films with Under-Layer

et al. 1998

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Abstraet--Fe: 2.0 nmJ Ag double layered films were continuously prepared by evaporation method with electron beam heating equipment on glass substrate. The thickness ofAg under-layer film was changing from 0 to 200.0 nm. The composition and surface morphology of Fe I Ag double layered film were investigated by measuring with theAES spectra andAFM images. When the under-layer thickness is 50.0 nm, the saturation magnetization Is of the film has maximum value which is 20 kG, and the surface morphology seems more uneven shapes than any other films. When under-layer thickness is 20.0 nm, the coercive force He has minimum value which is 11.8 Oe. For Fe film of2.0 nm thickness with under-layer, the surface morphology of the films and the stress in the under-layer are related to the magnetic properties.

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“…The nuclear quadrupole polarizes the d electrons and thus the actual splitting will be larger than that given by Equation (2) by approximately the Sternehimer anti-shielding f91 factor.…”

Section: Ouadrupole I 2 34 58mentioning

confidence: 99%

MOESSBAUER EFFECT OF ULTRA THIN IRON FILMS. Technical Report No. 62.

Zuppero¹

1970

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Magnetic Ordering and Critical Thickness of Ultrathin Iron Films

Cited by 63 publications

References 16 publications

Size Dependence of Structures and Properties of Magnetic Materials

Size Dependence of Structures and Properties of Magnetic Materials

Magnetic Properties and Surface Morphology of Fe Thin Films with Under-Layer

MOESSBAUER EFFECT OF ULTRA THIN IRON FILMS. Technical Report No. 62.

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