Spin injection into magnesium nanowire

Hiroshi Idzuchi; Yasuhiro Fukuma; Le Wang; Yoshichika Otani

doi:10.1109/TMAG.2011.2108272

Spin injection into magnesium nanowire

Hiroshi Idzuchi, Yasuhiro Fukuma, Le Wang, Yoshichika Otani

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Spin injection into magnesium from Permalloy is performed in the lateral spin valve geometry. A large spin valve signal of 3.1 mΩ is observed at room temperature. The injector-detector separation dependence of the spin valve signal is analyzed by using a one-dimensional spin-diffusion model. The analysis yields the spin diffusion length of about 200 nm for the Mg nanowires. The short spin diffusion length of magnesium which has a small spin-orbit interaction can possibly be explained by considering the spin-hot-spot relaxation mechanism proposed by Fabian and Das Sarma.

Original language	English
Article number	5772190
Pages (from-to)	1545-1548
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	47
Issue number	6 PART 1
DOIs	https://doi.org/10.1109/TMAG.2011.2108272
Publication status	Published - 2011 Jun
Externally published	Yes

Keywords

Lateral spin valve
spin hot spot
spin injection
spin relaxation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2011.2108272

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title = "Spin injection into magnesium nanowire",

abstract = "Spin injection into magnesium from Permalloy is performed in the lateral spin valve geometry. A large spin valve signal of 3.1 mΩ is observed at room temperature. The injector-detector separation dependence of the spin valve signal is analyzed by using a one-dimensional spin-diffusion model. The analysis yields the spin diffusion length of about 200 nm for the Mg nanowires. The short spin diffusion length of magnesium which has a small spin-orbit interaction can possibly be explained by considering the spin-hot-spot relaxation mechanism proposed by Fabian and Das Sarma.",

keywords = "Lateral spin valve, spin hot spot, spin injection, spin relaxation",

author = "Hiroshi Idzuchi and Yasuhiro Fukuma and Le Wang and Yoshichika Otani",

note = "Funding Information: This work was supported in part by a Grant-in-Aid for Scientific Research on Priority Area “Creation and control of spin current” (No. 19048013) from the Ministry of Education, Culture, Sports, Science and Technology, Japan.",

year = "2011",

month = jun,

doi = "10.1109/TMAG.2011.2108272",

language = "English",

volume = "47",

pages = "1545--1548",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6 PART 1",

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TY - JOUR

T1 - Spin injection into magnesium nanowire

AU - Idzuchi, Hiroshi

AU - Fukuma, Yasuhiro

AU - Wang, Le

AU - Otani, Yoshichika

N1 - Funding Information: This work was supported in part by a Grant-in-Aid for Scientific Research on Priority Area “Creation and control of spin current” (No. 19048013) from the Ministry of Education, Culture, Sports, Science and Technology, Japan.

PY - 2011/6

Y1 - 2011/6

N2 - Spin injection into magnesium from Permalloy is performed in the lateral spin valve geometry. A large spin valve signal of 3.1 mΩ is observed at room temperature. The injector-detector separation dependence of the spin valve signal is analyzed by using a one-dimensional spin-diffusion model. The analysis yields the spin diffusion length of about 200 nm for the Mg nanowires. The short spin diffusion length of magnesium which has a small spin-orbit interaction can possibly be explained by considering the spin-hot-spot relaxation mechanism proposed by Fabian and Das Sarma.

AB - Spin injection into magnesium from Permalloy is performed in the lateral spin valve geometry. A large spin valve signal of 3.1 mΩ is observed at room temperature. The injector-detector separation dependence of the spin valve signal is analyzed by using a one-dimensional spin-diffusion model. The analysis yields the spin diffusion length of about 200 nm for the Mg nanowires. The short spin diffusion length of magnesium which has a small spin-orbit interaction can possibly be explained by considering the spin-hot-spot relaxation mechanism proposed by Fabian and Das Sarma.

KW - Lateral spin valve

KW - spin hot spot

KW - spin injection

KW - spin relaxation

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DO - 10.1109/TMAG.2011.2108272

M3 - Article

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VL - 47

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EP - 1548

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

SN - 0018-9464

IS - 6 PART 1

M1 - 5772190

ER -

Spin injection into magnesium nanowire

Abstract

Keywords

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