Spin injection properties in trilayer graphene lateral spin valves

Y. P. Liu; H. Idzuchi; Y. Fukuma; O. Rousseau; Y. Otani; W. S. Lew

doi:10.1063/1.4776699

Spin injection properties in trilayer graphene lateral spin valves

Y. P. Liu, H. Idzuchi, Y. Fukuma, O. Rousseau, Y. Otani, W. S. Lew

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

We report on the electrical injection and detection of spin accumulation in trilayer-graphene/MgO/Permalloy lateral spin-valve (LSV) structure. Non-local spin valve signal is clearly observed in the LSV, indicating that spin coherence extends underneath all ferromagnetic contacts. We also show that low-resistivity graphene/MgO/Py junctions enable efficient spin injection and detection in LSV with high applied current density, which leads to large spin accumulation of 120 μV at room temperature. A spin diffusion length of 1.5 μm was obtained for the injector-detector separation dependence of spin valve signal measurements carried out at room temperature, while at T = 10 K, the diffusion length increases to 2.3 μm.

Original language	English
Article number	033105
Journal	Applied Physics Letters
Volume	102
Issue number	3
DOIs	https://doi.org/10.1063/1.4776699
Publication status	Published - 2013 Jan 21
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4776699

Fingerprint Dive into the research topics of 'Spin injection properties in trilayer graphene lateral spin valves'. Together they form a unique fingerprint.

Cite this

Liu, Y. P., Idzuchi, H., Fukuma, Y., Rousseau, O., Otani, Y., & Lew, W. S. (2013). Spin injection properties in trilayer graphene lateral spin valves. Applied Physics Letters, 102(3), [033105]. https://doi.org/10.1063/1.4776699

@article{790e1d57a6c04798ba2c8cd7f2a73ab0,

title = "Spin injection properties in trilayer graphene lateral spin valves",

abstract = "We report on the electrical injection and detection of spin accumulation in trilayer-graphene/MgO/Permalloy lateral spin-valve (LSV) structure. Non-local spin valve signal is clearly observed in the LSV, indicating that spin coherence extends underneath all ferromagnetic contacts. We also show that low-resistivity graphene/MgO/Py junctions enable efficient spin injection and detection in LSV with high applied current density, which leads to large spin accumulation of 120 μV at room temperature. A spin diffusion length of 1.5 μm was obtained for the injector-detector separation dependence of spin valve signal measurements carried out at room temperature, while at T = 10 K, the diffusion length increases to 2.3 μm.",

author = "Liu, {Y. P.} and H. Idzuchi and Y. Fukuma and O. Rousseau and Y. Otani and Lew, {W. S.}",

year = "2013",

month = jan,

day = "21",

doi = "10.1063/1.4776699",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "3",

}

TY - JOUR

T1 - Spin injection properties in trilayer graphene lateral spin valves

AU - Liu, Y. P.

AU - Idzuchi, H.

AU - Fukuma, Y.

AU - Rousseau, O.

AU - Otani, Y.

AU - Lew, W. S.

PY - 2013/1/21

Y1 - 2013/1/21

N2 - We report on the electrical injection and detection of spin accumulation in trilayer-graphene/MgO/Permalloy lateral spin-valve (LSV) structure. Non-local spin valve signal is clearly observed in the LSV, indicating that spin coherence extends underneath all ferromagnetic contacts. We also show that low-resistivity graphene/MgO/Py junctions enable efficient spin injection and detection in LSV with high applied current density, which leads to large spin accumulation of 120 μV at room temperature. A spin diffusion length of 1.5 μm was obtained for the injector-detector separation dependence of spin valve signal measurements carried out at room temperature, while at T = 10 K, the diffusion length increases to 2.3 μm.

AB - We report on the electrical injection and detection of spin accumulation in trilayer-graphene/MgO/Permalloy lateral spin-valve (LSV) structure. Non-local spin valve signal is clearly observed in the LSV, indicating that spin coherence extends underneath all ferromagnetic contacts. We also show that low-resistivity graphene/MgO/Py junctions enable efficient spin injection and detection in LSV with high applied current density, which leads to large spin accumulation of 120 μV at room temperature. A spin diffusion length of 1.5 μm was obtained for the injector-detector separation dependence of spin valve signal measurements carried out at room temperature, while at T = 10 K, the diffusion length increases to 2.3 μm.

UR - http://www.scopus.com/inward/record.url?scp=84872894560&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872894560&partnerID=8YFLogxK

U2 - 10.1063/1.4776699

DO - 10.1063/1.4776699

M3 - Article

AN - SCOPUS:84872894560

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 3

M1 - 033105

ER -