Shift of Curie Temperature in Gadolinium Films due to Finite-Size Effects

Rhee, Ilsu; Chu, Gyo-Jin; Lee, Eui-Wan; Lee, Sang–Yun; Lee, Chong–Yong; Kim, Yang–Soo; Kim, Dong–Lak; Ri, H.-C.

doi:10.1143/jpsj.64.678

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…Finite size effect on Curie temperature T C and Néel temperature T N is one of the unique magnetic properties of the low-dimensional spin systems [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28]. For example, the shift of T C from ca.…”

Section: Introductionmentioning

confidence: 99%

“…50 K is observed with the decrease of the thickness of ultrathin Ni films [4,5,6,7,8], while T N in CoO layers is suppressed from 300 K to 15 K [21]. The suppressions of T C and T N have been discussed in terms of scaling laws of the critical temperatures in bulk samples, correlation length and system size (particle diameter and film thickness) [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Correlation between Curie temperature and system dimension

Mayama

Naito

2009

Physica E: Low-dimensional Systems and Nanostructures

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Curie temperature T C of spin arrangement with arbitrary dimension was considered. We assumed that interaction of a spin with all other spins vary with a power-law decay rate in exchange integral on Heisenberg model. As a result, we found that T C , which was obtained from T C = λC (λ: mean-field coefficient and C: Curie constant), significantly depends on fractal dimension of spin arrangements D, the exchange integral and the decay constant. This semi-quantitavely explains how T C depends on D (1 ≤ D ≤ 3) in a universal way and also the finite size effect on T C in low-dimensional spin systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correlation between Curie temperature and system dimension

Mayama

Naito

2009

Physica E: Low-dimensional Systems and Nanostructures

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Angle and thickness dependence of magnetoresistance peaks in thin nickel films

Rhee¹,

Yang²

2000

Solid State Communications

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The finite-size scaling in thin ferromagnetic nickel films

Hong

Rhee

1999

IEEE Trans. Magn.

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The Curie point of nickel films has been determined by measuring the resistivity as a function of temperature. From these data, we observe the thickness dependence of Curie point shift in these films; that is, the thinner the film is, the larger the shift is. By analyzing the data in light of finite-size scaling theory, we determine the shift exponent X to be 0.92k 0.04, not the theoretical value of 1.48. Such a deviation from the theoretical value has also been noted in other papers.[Phase llansition, Finite-size Scaling, Nickel Films, Curie Point]

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Shift of Curie Temperature in Gadolinium Films due to Finite-Size Effects

Cited by 5 publications

References 8 publications

Correlation between Curie temperature and system dimension

Correlation between Curie temperature and system dimension

Angle and thickness dependence of magnetoresistance peaks in thin nickel films

The finite-size scaling in thin ferromagnetic nickel films

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