Temperature dependence of spin-orbit torques in W/CoFeB bilayers

Witold Skowroński; Monika Cecot; Jarosław Kanak; Sławomir Ziȩtek; Tomasz Stobiecki; Lide Yao; Sebastiaan Van Dijken; Takayuki Nozaki; Kay Yakushiji; Shinji Yuasa

doi:10.1063/1.4960793

Temperature dependence of spin-orbit torques in W/CoFeB bilayers

Witold Skowroński, Monika Cecot, Jarosław Kanak, Sławomir Ziȩtek, Tomasz Stobiecki, Lide Yao, Sebastiaan Van Dijken, Takayuki Nozaki, Kay Yakushiji, Shinji Yuasa

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

29 Sitaatiot (Scopus)

379 Lataukset (Pure)

Abstrakti

We report on the temperature variation of spin-orbit torques in perpendicularly magnetized W/CoFeB bilayers. Harmonic Hall voltage measurements in perpendicularly magnetized CoFeB reveal increased longitudinal and transverse effective magnetic field components at low temperatures. The damping-like spin-orbit torque reaches an efficiency of 0.55 at 19 K. Scanning transmission electron microscopy and X-ray reflectivity measurements indicate that considerable interface mixing between W and CoFeB may be responsible for strong spin-orbit interactions.

Alkuperäiskieli	Englanti
Artikkeli	062407
Sivut	1-4
Julkaisu	Applied Physics Letters
Vuosikerta	109
Numero	6
DOI - pysyväislinkit	https://doi.org/10.1063/1.4960793
Tila	Julkaistu - 8 elok. 2016
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1063/1.4960793

1.4960793Final published version, 1,41 MB

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title = "Temperature dependence of spin-orbit torques in W/CoFeB bilayers",

abstract = "We report on the temperature variation of spin-orbit torques in perpendicularly magnetized W/CoFeB bilayers. Harmonic Hall voltage measurements in perpendicularly magnetized CoFeB reveal increased longitudinal and transverse effective magnetic field components at low temperatures. The damping-like spin-orbit torque reaches an efficiency of 0.55 at 19 K. Scanning transmission electron microscopy and X-ray reflectivity measurements indicate that considerable interface mixing between W and CoFeB may be responsible for strong spin-orbit interactions.",

author = "Witold Skowro{\'n}ski and Monika Cecot and Jaros{\l}aw Kanak and S{\l}awomir Ziȩtek and Tomasz Stobiecki and Lide Yao and {Van Dijken}, Sebastiaan and Takayuki Nozaki and Kay Yakushiji and Shinji Yuasa",

note = "| openaire: EC/FP7/307502/EU//E-CONTROL ",

year = "2016",

month = aug,

day = "8",

doi = "10.1063/1.4960793",

language = "English",

volume = "109",

pages = "1--4",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "6",

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TY - JOUR

T1 - Temperature dependence of spin-orbit torques in W/CoFeB bilayers

AU - Skowroński, Witold

AU - Cecot, Monika

AU - Kanak, Jarosław

AU - Ziȩtek, Sławomir

AU - Stobiecki, Tomasz

AU - Yao, Lide

AU - Van Dijken, Sebastiaan

AU - Nozaki, Takayuki

AU - Yakushiji, Kay

AU - Yuasa, Shinji

N1 - | openaire: EC/FP7/307502/EU//E-CONTROL

PY - 2016/8/8

Y1 - 2016/8/8

N2 - We report on the temperature variation of spin-orbit torques in perpendicularly magnetized W/CoFeB bilayers. Harmonic Hall voltage measurements in perpendicularly magnetized CoFeB reveal increased longitudinal and transverse effective magnetic field components at low temperatures. The damping-like spin-orbit torque reaches an efficiency of 0.55 at 19 K. Scanning transmission electron microscopy and X-ray reflectivity measurements indicate that considerable interface mixing between W and CoFeB may be responsible for strong spin-orbit interactions.

AB - We report on the temperature variation of spin-orbit torques in perpendicularly magnetized W/CoFeB bilayers. Harmonic Hall voltage measurements in perpendicularly magnetized CoFeB reveal increased longitudinal and transverse effective magnetic field components at low temperatures. The damping-like spin-orbit torque reaches an efficiency of 0.55 at 19 K. Scanning transmission electron microscopy and X-ray reflectivity measurements indicate that considerable interface mixing between W and CoFeB may be responsible for strong spin-orbit interactions.

UR - http://www.scopus.com/inward/record.url?scp=84982234169&partnerID=8YFLogxK

U2 - 10.1063/1.4960793

DO - 10.1063/1.4960793

M3 - Article

AN - SCOPUS:84982234169

SN - 0003-6951

VL - 109

SP - 1

EP - 4

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

M1 - 062407

ER -

Temperature dependence of spin-orbit torques in W/CoFeB bilayers

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