Publication

Temperature and Electric Field Dependence of Spin Relaxation in Graphene on SrTiO3

Chen, S., Ruiter, R., Mathkar, V., van Wees, B. J. & Banerjee, T., Nov-2018, In : Physica status solidi-Rapid research letters. 12, 11, 7 p., 1800216.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Chen, S., Ruiter, R., Mathkar, V., van Wees, B. J., & Banerjee, T. (2018). Temperature and Electric Field Dependence of Spin Relaxation in Graphene on SrTiO3. Physica status solidi-Rapid research letters, 12(11), [1800216]. https://doi.org/10.1002/pssr.201800216

Author

Chen, Si ; Ruiter, Roald ; Mathkar, Vikramaditya ; van Wees, Bart J. ; Banerjee, Tamalika. / Temperature and Electric Field Dependence of Spin Relaxation in Graphene on SrTiO3. In: Physica status solidi-Rapid research letters. 2018 ; Vol. 12, No. 11.

Harvard

Chen, S, Ruiter, R, Mathkar, V, van Wees, BJ & Banerjee, T 2018, 'Temperature and Electric Field Dependence of Spin Relaxation in Graphene on SrTiO3', Physica status solidi-Rapid research letters, vol. 12, no. 11, 1800216. https://doi.org/10.1002/pssr.201800216

Standard

Temperature and Electric Field Dependence of Spin Relaxation in Graphene on SrTiO3. / Chen, Si; Ruiter, Roald; Mathkar, Vikramaditya; van Wees, Bart J.; Banerjee, Tamalika.

In: Physica status solidi-Rapid research letters, Vol. 12, No. 11, 1800216, 11.2018.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Chen S, Ruiter R, Mathkar V, van Wees BJ, Banerjee T. Temperature and Electric Field Dependence of Spin Relaxation in Graphene on SrTiO3. Physica status solidi-Rapid research letters. 2018 Nov;12(11). 1800216. https://doi.org/10.1002/pssr.201800216


BibTeX

@article{91a91a801d934bc3b1a10b21cfd53e27,
title = "Temperature and Electric Field Dependence of Spin Relaxation in Graphene on SrTiO3",
abstract = "The theoretically predicted intrinsic spin relaxation time of up to 1 mu s in graphene along with extremely high mobilities makes it a promising material in spintronics. Numerous experimental studies, however, find the spin lifetime in graphene to be several orders of magnitude below that theoretically predicted. Additionally, analyses of the spin relaxation mechanisms in graphene using conventional processes such as Elliot-Yaffet and D'yakonov-Perel' show a coexistence of both, with no clear dominance. Central to these experimental discrepancies is the role of the local environment including that of the underlying substrate. In this work, we use the electronically rich platform of SrTiO3 with broken inversion symmetry and study spin transport in graphene in the presence of surface electric fields. We find spin relaxation time and length as large as 0.96 +/- 0.03 ns and 4.1 +/- 0.1 mu m, respectively at 290 K in graphene, using non-local spin valve studies and find a non monotonous dependence with temperature, unlike that observed in other substrates. Analysis of the temperature dependence indicates the role of surface electric dipoles and electric field driven electronic and structural phase transitions unique to SrTiO3 for spin transport and spin relaxation in graphene.",
keywords = "graphene, graphene-oxide interface, spin-orbit coupling, spintronic materials, SrTiO3, STRONTIUM-TITANATE, FABRICATION, TRANSPORT, SURFACE",
author = "Si Chen and Roald Ruiter and Vikramaditya Mathkar and {van Wees}, {Bart J.} and Tamalika Banerjee",
year = "2018",
month = nov,
doi = "10.1002/pssr.201800216",
language = "English",
volume = "12",
journal = "Physica status solidi-Rapid research letters",
issn = "1862-6270",
publisher = "WILEY-V C H VERLAG GMBH",
number = "11",

}

RIS

TY - JOUR

T1 - Temperature and Electric Field Dependence of Spin Relaxation in Graphene on SrTiO3

AU - Chen, Si

AU - Ruiter, Roald

AU - Mathkar, Vikramaditya

AU - van Wees, Bart J.

AU - Banerjee, Tamalika

PY - 2018/11

Y1 - 2018/11

N2 - The theoretically predicted intrinsic spin relaxation time of up to 1 mu s in graphene along with extremely high mobilities makes it a promising material in spintronics. Numerous experimental studies, however, find the spin lifetime in graphene to be several orders of magnitude below that theoretically predicted. Additionally, analyses of the spin relaxation mechanisms in graphene using conventional processes such as Elliot-Yaffet and D'yakonov-Perel' show a coexistence of both, with no clear dominance. Central to these experimental discrepancies is the role of the local environment including that of the underlying substrate. In this work, we use the electronically rich platform of SrTiO3 with broken inversion symmetry and study spin transport in graphene in the presence of surface electric fields. We find spin relaxation time and length as large as 0.96 +/- 0.03 ns and 4.1 +/- 0.1 mu m, respectively at 290 K in graphene, using non-local spin valve studies and find a non monotonous dependence with temperature, unlike that observed in other substrates. Analysis of the temperature dependence indicates the role of surface electric dipoles and electric field driven electronic and structural phase transitions unique to SrTiO3 for spin transport and spin relaxation in graphene.

AB - The theoretically predicted intrinsic spin relaxation time of up to 1 mu s in graphene along with extremely high mobilities makes it a promising material in spintronics. Numerous experimental studies, however, find the spin lifetime in graphene to be several orders of magnitude below that theoretically predicted. Additionally, analyses of the spin relaxation mechanisms in graphene using conventional processes such as Elliot-Yaffet and D'yakonov-Perel' show a coexistence of both, with no clear dominance. Central to these experimental discrepancies is the role of the local environment including that of the underlying substrate. In this work, we use the electronically rich platform of SrTiO3 with broken inversion symmetry and study spin transport in graphene in the presence of surface electric fields. We find spin relaxation time and length as large as 0.96 +/- 0.03 ns and 4.1 +/- 0.1 mu m, respectively at 290 K in graphene, using non-local spin valve studies and find a non monotonous dependence with temperature, unlike that observed in other substrates. Analysis of the temperature dependence indicates the role of surface electric dipoles and electric field driven electronic and structural phase transitions unique to SrTiO3 for spin transport and spin relaxation in graphene.

KW - graphene

KW - graphene-oxide interface

KW - spin-orbit coupling

KW - spintronic materials

KW - SrTiO3

KW - STRONTIUM-TITANATE

KW - FABRICATION

KW - TRANSPORT

KW - SURFACE

U2 - 10.1002/pssr.201800216

DO - 10.1002/pssr.201800216

M3 - Article

VL - 12

JO - Physica status solidi-Rapid research letters

JF - Physica status solidi-Rapid research letters

SN - 1862-6270

IS - 11

M1 - 1800216

ER -

ID: 71843413