Temperature dependence of electrical resistivity of Co/Cu multilayers at static magnetic field

K. Suenaga; G. Oomi; Y. Uwatoko; T. Sakai; K. Saito; K. Takanashi; H. Fujimori

doi:10.1016/j.jmmm.2003.12.069

Temperature dependence of electrical resistivity of Co/Cu multilayers at static magnetic field

K. Suenaga, G. Oomi, Y. Uwatoko, T. Sakai, K. Saito, K. Takanashi, H. Fujimori

Collaborative Research Center on Energy Materials

Research output: Contribution to journal › Conference article › peer-review

Abstract

Temperature dependence of the electrical resistivity has been measured below 50 K for the sputtered magnetic multilayers [Co(1.02 nm)/Cu(t _Cunm)]₂₅ with different Cu thickness at various magnetic fields. It is found that the electrical resistivities of ferromagnetic (FM) multilayer (t_Cu = 0.76 nm) and the antiferromagnetic (AFM) one (t_Cu = 1.05 nm) show temperature dependence of T^3/2 and T², respectively. The slope, A′, of each power law has a maximum near H_s. The results imply that the magnetic fluctuation is a maximum near H_s showing quantum phase transition.

Original language	English
Pages (from-to)	1231-1232
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
DOIs	https://doi.org/10.1016/j.jmmm.2003.12.069
Publication status	Published - 2004 May
Event	Proceedings of the International Conference on Magnetism - Rome, Italy Duration: 2003 Jul 27 → 2003 Aug 1

Keywords

Multilayers and superlattice
Resistivity
Temperature dependence

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Temperature dependence of electrical resistivity of Co/Cu multilayers at static magnetic field",

abstract = "Temperature dependence of the electrical resistivity has been measured below 50 K for the sputtered magnetic multilayers [Co(1.02 nm)/Cu(t Cunm)]25 with different Cu thickness at various magnetic fields. It is found that the electrical resistivities of ferromagnetic (FM) multilayer (tCu = 0.76 nm) and the antiferromagnetic (AFM) one (tCu = 1.05 nm) show temperature dependence of T3/2 and T2, respectively. The slope, A′, of each power law has a maximum near Hs. The results imply that the magnetic fluctuation is a maximum near Hs showing quantum phase transition.",

keywords = "Multilayers and superlattice, Resistivity, Temperature dependence",

author = "K. Suenaga and G. Oomi and Y. Uwatoko and T. Sakai and K. Saito and K. Takanashi and H. Fujimori",

year = "2004",

month = may,

doi = "10.1016/j.jmmm.2003.12.069",

language = "English",

volume = "272-276",

pages = "1231--1232",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

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TY - JOUR

T1 - Temperature dependence of electrical resistivity of Co/Cu multilayers at static magnetic field

AU - Suenaga, K.

AU - Oomi, G.

AU - Uwatoko, Y.

AU - Sakai, T.

AU - Saito, K.

AU - Takanashi, K.

AU - Fujimori, H.

PY - 2004/5

Y1 - 2004/5

N2 - Temperature dependence of the electrical resistivity has been measured below 50 K for the sputtered magnetic multilayers [Co(1.02 nm)/Cu(t Cunm)]25 with different Cu thickness at various magnetic fields. It is found that the electrical resistivities of ferromagnetic (FM) multilayer (tCu = 0.76 nm) and the antiferromagnetic (AFM) one (tCu = 1.05 nm) show temperature dependence of T3/2 and T2, respectively. The slope, A′, of each power law has a maximum near Hs. The results imply that the magnetic fluctuation is a maximum near Hs showing quantum phase transition.

AB - Temperature dependence of the electrical resistivity has been measured below 50 K for the sputtered magnetic multilayers [Co(1.02 nm)/Cu(t Cunm)]25 with different Cu thickness at various magnetic fields. It is found that the electrical resistivities of ferromagnetic (FM) multilayer (tCu = 0.76 nm) and the antiferromagnetic (AFM) one (tCu = 1.05 nm) show temperature dependence of T3/2 and T2, respectively. The slope, A′, of each power law has a maximum near Hs. The results imply that the magnetic fluctuation is a maximum near Hs showing quantum phase transition.

KW - Multilayers and superlattice

KW - Resistivity

KW - Temperature dependence

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U2 - 10.1016/j.jmmm.2003.12.069

DO - 10.1016/j.jmmm.2003.12.069

M3 - Conference article

AN - SCOPUS:2642531273

VL - 272-276

SP - 1231

EP - 1232

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

T2 - Proceedings of the International Conference on Magnetism

Y2 - 27 July 2003 through 1 August 2003

ER -

Temperature dependence of electrical resistivity of Co/Cu multilayers at static magnetic field

Abstract

Keywords

ASJC Scopus subject areas

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