Magnetoresistance in Ni-Fe/Cu Multilayers.

雅重, 佐藤; 俊二, 石尾; 照宣, 宮崎

doi:10.3379/jmsjmag.17.373

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…The peak MR ratio of 6.95% was found at 2.lnm. In this experiment, the 2nd peak was obtained in fewer multilayer compared with previous studies [4].…”

Section: Resultscontrasting

confidence: 42%

“…Similar to the previously reported interpretation [2,3], this result can be explained the bottom NiFe layer operating as a buffer layer, which is needed to produce a high GMR ratio. However, considering the fact that there is an extreme change in GMR ratio, it is difficult to regard the bottom NiFe layer [4] as such a buffer layer. Fig.5 shows the effect of variations in n on NiFe/(Ni/Fe/ Cu)n/NiFe.…”

Section: Resultsmentioning

confidence: 99%

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Highly sensitive giant magnetoresistance in NiFe/(Ni/Fe/Cu)/sub n//NiFe thin films

1994

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Abstruct -GMR of 0 to 6.95% has been found in fields of 0 to 50 Oe at room temperature in NiFe(Snm)/[Ni(lSnm)/ Fe(0.42nm)/Cu(2.lnm)]~/NiFe(7nm) thin films prepared by DC magnetron sputtering with extremely precise thickness control. The full width at half maximum (FWHM) of the GMR curve was 10.4 Oe. The top and bottom NiFe layers had antiferromagnetic coupling to adjacent Ni/Fe layers across the Cu layers and also maintained magnetically soft characteristics. The NiFe/(Ni/Fe/Cu)&iFe sensor which was 40nm thick ,3.5 f i m wide and 15 f i m long showed a large output 4 times as large as NiFe/A1203/NiFe sensors.

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“…The peak MR ratio of 6.95% was found at 2.lnm. In this experiment, the 2nd peak was obtained in fewer multilayer compared with previous studies [4].…”

Section: Resultscontrasting

confidence: 42%

Section: Resultsmentioning

confidence: 99%

Highly sensitive giant magnetoresistance in NiFe/(Ni/Fe/Cu)/sub n//NiFe thin films

1994

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“…Much of this interest has focused on developing Mls with the highest possible giant magnetoresistance (GMR), a low antiferromagnetic coupling strength (JAF) with a high fraction of antiferromagnetically (AF) coupled regions FAF = (1 -MR/Ms) (MR, Ms are the remanence and saturation magnetization) and a low coercive field H. Since the results obtained by several authors with the use of different deposition techniques vary [1][2][3][4][5], the magnetic properties of Py/Cu Mls seem to be very sensitive to the deposition and growth conditions. In the present paper we report on magnetic and structural properties of Si(100)/B/(Py/Cu)N Mis (B -buffer layer with a thickness dB, Py = Ni83Fe17, N -number of periods) with various sublayers thicknesses of Cu dk u ) and Permalloy (dPy ) obtained by the face-to-face sputtering technique [7].…”

mentioning

confidence: 99%

“…Recently, there has been a considerable interest in magnetic and magnetotransport properties of Py/Cu and Py/Au (Py = Permalloy) multilayers (Mis) [1][2][3][4][5][6]. Much of this interest has focused on developing Mls with the highest possible giant magnetoresistance (GMR), a low antiferromagnetic coupling strength (JAF) with a high fraction of antiferromagnetically (AF) coupled regions FAF = (1 -MR/Ms) (MR, Ms are the remanence and saturation magnetization) and a low coercive field H. Since the results obtained by several authors with the use of different deposition techniques vary [1][2][3][4][5], the magnetic properties of Py/Cu Mls seem to be very sensitive to the deposition and growth conditions.…”

mentioning

confidence: 99%

High-Quality Ni-Fe/Cu Multilayer Films with Antiferromagnetic Coupling

et al. 1997

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We report structural and magnetic properties of Ni83Fe17/Cu multilayer films with various buffer layer and sublayer thicknesses of copper dcu and Permalloy dp y deposited by face-to-face sputtering. The following features prove a good quality of our films: a well-layered structure, complete antiferromagnetic coupling with a low coupling strength (2 x 10 -5 J/m2 for dcu = 1 nm and 10 -5 J/m2 for dc" = 2.1 nm) and a low coercive field which make them attractive for possible applications as giant magnetoresistance sensors.PACS numbers: 76.50.+g, 75.50.Tt Recently, there has been a considerable interest in magnetic and magnetotransport properties of Py/Cu and Py/Au (Py = Permalloy) multilayers (Mis) [1][2][3][4][5][6]. Much of this interest has focused on developing Mls with the highest possible giant magnetoresistance (GMR), a low antiferromagnetic coupling strength (JAF) with a high fraction of antiferromagnetically (AF) coupled regions FAF = (1 -MR/Ms) (MR, Ms are the remanence and saturation magnetization) and a low coercive field H. Since the results obtained by several authors with the use of different deposition techniques vary [1][2][3][4][5], the magnetic properties of Py/Cu Mls seem to be very sensitive to the deposition and growth conditions. In the present paper we report on magnetic and structural properties of Si(100)/B/(Py/Cu)N Mis (B -buffer layer with a thickness dB, Py = Ni83Fe17, N -number of periods) with various sublayers thicknesses of Cu dk u ) and Permalloy (dPy ) obtained by the face-to-face sputtering technique [7]. The magnetic properties of the samples were determined from the hysteresis loops measured with a vibrating sample magnetometer (VSM) and magneto-optical Kerr effect (MOKE). The well-defined (277)

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Magnetoresistance characteristics of (NiFe/Ni/NiFe)/Cu multilayers

Song

Joo

1996

IEEE Trans. Magn.

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By inserting two or three layers of NiFe at the interfaces of NVCu multilayers, the magnetoresistance properties of NVCu could be appreciably improved. 50 Oe of saturation magnetic field and 6 % of magnetoresistance were obtained in glasslCu(50 A)viFe(7 A)Ni(6 A)NiFe(7 A)/Cu(20 A)]m structured multilayers. 25 Oe of saturation magnetic field and 4.5 % of magnetoresistance were obtained in 4" tilt-cut Si(lll)lNiFe(SO A)[NiFe(7 A)Ni(6 A)NiFe(7 A)/ Cu(20 A)]lo. Almost negligible hysteresis was shown in both structures, which turned out to be much advantageous in obtaining magnetoresistance signals under ac magnetic field.

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Magnetoresistance in Ni-Fe/Cu Multilayers.

Cited by 9 publications

References 6 publications

Highly sensitive giant magnetoresistance in NiFe/(Ni/Fe/Cu)/sub n//NiFe thin films

Highly sensitive giant magnetoresistance in NiFe/(Ni/Fe/Cu)/sub n//NiFe thin films

High-Quality Ni-Fe/Cu Multilayer Films with Antiferromagnetic Coupling

Magnetoresistance characteristics of (NiFe/Ni/NiFe)/Cu multilayers

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