Spin filtering of hot holes in a metallic ferromagnet

T. Banerjee; E. Ul Haq; Martin Herman Siekman; J.C. Lodder; R. Jansen

doi:10.1103/PhysRevLett.94.027204

Spin filtering of hot holes in a metallic ferromagnet

T. Banerjee, E. Ul Haq, Martin Herman Siekman, J.C. Lodder, R. Jansen

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

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Abstract

Spin-dependent transport of nonequilibrium holes in ferromagnetic thin films and trilayers is investigated using ballistic hole magnetic microscopy. For Co, the hole attenuation length is short and increases from 6 to 10 A in the energy range 0.8 to 2 eV. The hole transmission of a Ni81Fe19/Au/Co trilayer is clearly spin dependent, resulting in a surprisingly large current change by a factor of 2.3 in a magnetic field. The energy and spin dependence of the hole transmission cannot be explained by the phase space available for inelastic decay of the hot holes.

Original language	Undefined
Pages (from-to)	027204
Number of pages	4
Journal	Physical review letters
Volume	94
Issue number	027204
DOIs	https://doi.org/10.1103/PhysRevLett.94.027204
Publication status	Published - 2005

Keywords

TSTNE-Probe-STM: Scanning Tunneling Microscope
EWI-5379
IR-48084
METIS-219248
SMI-NE: From 2006 in EWI-NE

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10.1103/PhysRevLett.94.027204

spin_filtering
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http://eprints.eemcs.utwente.nl/secure2/5379/01/BANERJEE2005.PDF

Cite this

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title = "Spin filtering of hot holes in a metallic ferromagnet",

abstract = "Spin-dependent transport of nonequilibrium holes in ferromagnetic thin films and trilayers is investigated using ballistic hole magnetic microscopy. For Co, the hole attenuation length is short and increases from 6 to 10 A in the energy range 0.8 to 2 eV. The hole transmission of a Ni81Fe19/Au/Co trilayer is clearly spin dependent, resulting in a surprisingly large current change by a factor of 2.3 in a magnetic field. The energy and spin dependence of the hole transmission cannot be explained by the phase space available for inelastic decay of the hot holes.",

keywords = "TSTNE-Probe-STM: Scanning Tunneling Microscope, EWI-5379, IR-48084, METIS-219248, SMI-NE: From 2006 in EWI-NE",

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year = "2005",

doi = "10.1103/PhysRevLett.94.027204",

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volume = "94",

pages = "027204",

journal = "Physical review letters",

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TY - JOUR

T1 - Spin filtering of hot holes in a metallic ferromagnet

AU - Banerjee, T.

AU - Ul Haq, E.

AU - Siekman, Martin Herman

AU - Lodder, J.C.

AU - Jansen, R.

N1 - Imported from SMI Reference manager

PY - 2005

Y1 - 2005

N2 - Spin-dependent transport of nonequilibrium holes in ferromagnetic thin films and trilayers is investigated using ballistic hole magnetic microscopy. For Co, the hole attenuation length is short and increases from 6 to 10 A in the energy range 0.8 to 2 eV. The hole transmission of a Ni81Fe19/Au/Co trilayer is clearly spin dependent, resulting in a surprisingly large current change by a factor of 2.3 in a magnetic field. The energy and spin dependence of the hole transmission cannot be explained by the phase space available for inelastic decay of the hot holes.

AB - Spin-dependent transport of nonequilibrium holes in ferromagnetic thin films and trilayers is investigated using ballistic hole magnetic microscopy. For Co, the hole attenuation length is short and increases from 6 to 10 A in the energy range 0.8 to 2 eV. The hole transmission of a Ni81Fe19/Au/Co trilayer is clearly spin dependent, resulting in a surprisingly large current change by a factor of 2.3 in a magnetic field. The energy and spin dependence of the hole transmission cannot be explained by the phase space available for inelastic decay of the hot holes.

KW - TSTNE-Probe-STM: Scanning Tunneling Microscope

KW - EWI-5379

KW - IR-48084

KW - METIS-219248

KW - SMI-NE: From 2006 in EWI-NE

U2 - 10.1103/PhysRevLett.94.027204

DO - 10.1103/PhysRevLett.94.027204

M3 - Article

VL - 94

SP - 027204

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

IS - 027204

ER -