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Interface control of spin transport in magnetic tunnel junctions with MgO\Cu-Phthalocyanine hybrid barrier

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Interface control of spin transport in magnetic tunnel junctions with MgO\Cu-Phthalocyanine hybrid barrier. / Bae, Yu Jeong; Lee, Nyun Jong; Kim, Tae Hee; Pratt, Andrew; Yamauchi, Yasushi.

In: Bulletin of the American Physical Society, Vol. 59, No. 1, 03.2014.

Research output: Contribution to journalMeeting abstract

Harvard

Bae, YJ, Lee, NJ, Kim, TH, Pratt, A & Yamauchi, Y 2014, 'Interface control of spin transport in magnetic tunnel junctions with MgO\Cu-Phthalocyanine hybrid barrier', Bulletin of the American Physical Society, vol. 59, no. 1.

APA

Bae, Y. J., Lee, N. J., Kim, T. H., Pratt, A., & Yamauchi, Y. (2014). Interface control of spin transport in magnetic tunnel junctions with MgO\Cu-Phthalocyanine hybrid barrier. Bulletin of the American Physical Society, 59(1).

Vancouver

Bae YJ, Lee NJ, Kim TH, Pratt A, Yamauchi Y. Interface control of spin transport in magnetic tunnel junctions with MgO\Cu-Phthalocyanine hybrid barrier. Bulletin of the American Physical Society. 2014 Mar;59(1).

Author

Bae, Yu Jeong ; Lee, Nyun Jong ; Kim, Tae Hee ; Pratt, Andrew ; Yamauchi, Yasushi. / Interface control of spin transport in magnetic tunnel junctions with MgO\Cu-Phthalocyanine hybrid barrier. In: Bulletin of the American Physical Society. 2014 ; Vol. 59, No. 1.

Bibtex - Download

@article{875380271de04daaaa6b3ebdcb2de0df,
title = "Interface control of spin transport in magnetic tunnel junctions with MgO\Cu-Phthalocyanine hybrid barrier",
abstract = "In this work, systematic investigation of interface electronic properties in Fe(001)\MgO(001)\Cu-Phthalocyanine (CuPc) and Fe(001)\CuPc was carried out by using spin polarized metastable He de-excitation spectroscopy (SP-MDS) technique. The electronic structure related to the absorption geometry of CuPc on the Fe (001) and MgO(001) was carefully explored. Differences in the spin resolved density of states were observed as a function of CuPc thickness. The clear evidence of spin-polarized organic spinterface appears even at room temperature in ultra-thin (< 2 nm) CuPc films on the epitaxially grown Fe(001)\MgO(001) bilayer. These findings have significant implications for understanding of spin injection from a ferromagnetic layer into an organic semiconductor (OSC), and highlight the importance of adsorption geometry and interfacial exchange coupling in the process of spin injection. This is demonstrated in measurements of the spin transport of Fe\MgO(001)\CuPc\Co tunnel junctions. For the MgO\CuPC hybrid barrier, high magnetoresistance value (>100{\%}) and rather small value (∼10{\%}) were measured at 77 K and 300 K, respectively. Our results provide significant new insights into the phenomenon of spin injection into an OSC and the operation of molecular spintronic devices.",
author = "Bae, {Yu Jeong} and Lee, {Nyun Jong} and Kim, {Tae Hee} and Andrew Pratt and Yasushi Yamauchi",
year = "2014",
month = "3",
language = "English",
volume = "59",
journal = "Bulletin of the American Physical Society",
issn = "0003-0503",
number = "1",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Interface control of spin transport in magnetic tunnel junctions with MgO\Cu-Phthalocyanine hybrid barrier

AU - Bae, Yu Jeong

AU - Lee, Nyun Jong

AU - Kim, Tae Hee

AU - Pratt, Andrew

AU - Yamauchi, Yasushi

PY - 2014/3

Y1 - 2014/3

N2 - In this work, systematic investigation of interface electronic properties in Fe(001)\MgO(001)\Cu-Phthalocyanine (CuPc) and Fe(001)\CuPc was carried out by using spin polarized metastable He de-excitation spectroscopy (SP-MDS) technique. The electronic structure related to the absorption geometry of CuPc on the Fe (001) and MgO(001) was carefully explored. Differences in the spin resolved density of states were observed as a function of CuPc thickness. The clear evidence of spin-polarized organic spinterface appears even at room temperature in ultra-thin (< 2 nm) CuPc films on the epitaxially grown Fe(001)\MgO(001) bilayer. These findings have significant implications for understanding of spin injection from a ferromagnetic layer into an organic semiconductor (OSC), and highlight the importance of adsorption geometry and interfacial exchange coupling in the process of spin injection. This is demonstrated in measurements of the spin transport of Fe\MgO(001)\CuPc\Co tunnel junctions. For the MgO\CuPC hybrid barrier, high magnetoresistance value (>100%) and rather small value (∼10%) were measured at 77 K and 300 K, respectively. Our results provide significant new insights into the phenomenon of spin injection into an OSC and the operation of molecular spintronic devices.

AB - In this work, systematic investigation of interface electronic properties in Fe(001)\MgO(001)\Cu-Phthalocyanine (CuPc) and Fe(001)\CuPc was carried out by using spin polarized metastable He de-excitation spectroscopy (SP-MDS) technique. The electronic structure related to the absorption geometry of CuPc on the Fe (001) and MgO(001) was carefully explored. Differences in the spin resolved density of states were observed as a function of CuPc thickness. The clear evidence of spin-polarized organic spinterface appears even at room temperature in ultra-thin (< 2 nm) CuPc films on the epitaxially grown Fe(001)\MgO(001) bilayer. These findings have significant implications for understanding of spin injection from a ferromagnetic layer into an organic semiconductor (OSC), and highlight the importance of adsorption geometry and interfacial exchange coupling in the process of spin injection. This is demonstrated in measurements of the spin transport of Fe\MgO(001)\CuPc\Co tunnel junctions. For the MgO\CuPC hybrid barrier, high magnetoresistance value (>100%) and rather small value (∼10%) were measured at 77 K and 300 K, respectively. Our results provide significant new insights into the phenomenon of spin injection into an OSC and the operation of molecular spintronic devices.

M3 - Meeting abstract

VL - 59

JO - Bulletin of the American Physical Society

JF - Bulletin of the American Physical Society

SN - 0003-0503

IS - 1

ER -