Photovoltage spectroscopy of dipolar spin waves in Dy micromagnets

Alain Nogaret; Maksym Stebliy; Jean-Claude Portal; Alexander Samardak; Alexey Ognev; Harvey Beere; David Ritchie

doi:10.4028/www.scientific.net/SSP.215.400

Photovoltage spectroscopy of dipolar spin waves in Dy micromagnets

Alain Nogaret
, Maksym Stebliy
, Jean-Claude Portal
, Alexander Samardak
, Alexey Ognev
, Harvey Beere
, David Ritchie

Department of Physics

Centre national de la recherche scientifique
Far Eastern Federal University
University of Cambridge

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

3 Citations (SciVal)

405 Downloads (Pure)

Abstract

We report on a sensitive spectroscopic technique for probing the spin excitations of individual submicron magnets. This technique uses a high mobility two dimensional electron gas (2DEG) confined in a GaAs/AlGaAs heterojunction to pick up the oscillating dipolar magnetic field emanating from the individual spin wave modes of micromagnets fabricated at its surface. We review a range of dynamic phenomena that demonstrate the formation of magnetostatic waves in finger gate arrays, dipolar edge spin waves in bar magnets, vortex hysteresis in magnetic dots and the photovoltage dependence on microwave polarization.

Original language	English
Pages (from-to)	400-406
Number of pages	7
Journal	Solid State Phenomena
Volume	215
DOIs	https://doi.org/10.4028/www.scientific.net/SSP.215.400
Publication status	Published - Apr 2014
Event	5th Euro-Asian Symposium on Trends in MAGnetism: Nanomagnetism, EASTMAG 2013 - Vladivostok, Russian Federation Duration: 15 Sept 2013 → 21 Sept 2013

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Spectroscopy of dipolr spin wavesSubmitted manuscript, 445 KB

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title = "Photovoltage spectroscopy of dipolar spin waves in Dy micromagnets",

abstract = "We report on a sensitive spectroscopic technique for probing the spin excitations of individual submicron magnets. This technique uses a high mobility two dimensional electron gas (2DEG) confined in a GaAs/AlGaAs heterojunction to pick up the oscillating dipolar magnetic field emanating from the individual spin wave modes of micromagnets fabricated at its surface. We review a range of dynamic phenomena that demonstrate the formation of magnetostatic waves in finger gate arrays, dipolar edge spin waves in bar magnets, vortex hysteresis in magnetic dots and the photovoltage dependence on microwave polarization.",

author = "Alain Nogaret and Maksym Stebliy and Jean-Claude Portal and Alexander Samardak and Alexey Ognev and Harvey Beere and David Ritchie",

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T1 - Photovoltage spectroscopy of dipolar spin waves in Dy micromagnets

AU - Nogaret, Alain

AU - Stebliy, Maksym

AU - Portal, Jean-Claude

AU - Samardak, Alexander

AU - Ognev, Alexey

AU - Beere, Harvey

AU - Ritchie, David

PY - 2014/4

Y1 - 2014/4

N2 - We report on a sensitive spectroscopic technique for probing the spin excitations of individual submicron magnets. This technique uses a high mobility two dimensional electron gas (2DEG) confined in a GaAs/AlGaAs heterojunction to pick up the oscillating dipolar magnetic field emanating from the individual spin wave modes of micromagnets fabricated at its surface. We review a range of dynamic phenomena that demonstrate the formation of magnetostatic waves in finger gate arrays, dipolar edge spin waves in bar magnets, vortex hysteresis in magnetic dots and the photovoltage dependence on microwave polarization.

AB - We report on a sensitive spectroscopic technique for probing the spin excitations of individual submicron magnets. This technique uses a high mobility two dimensional electron gas (2DEG) confined in a GaAs/AlGaAs heterojunction to pick up the oscillating dipolar magnetic field emanating from the individual spin wave modes of micromagnets fabricated at its surface. We review a range of dynamic phenomena that demonstrate the formation of magnetostatic waves in finger gate arrays, dipolar edge spin waves in bar magnets, vortex hysteresis in magnetic dots and the photovoltage dependence on microwave polarization.

UR - http://dx.doi.org/10.4028/www.scientific.net/SSP.215.400

U2 - 10.4028/www.scientific.net/SSP.215.400

DO - 10.4028/www.scientific.net/SSP.215.400

M3 - Article

SN - 1012-0394

VL - 215

SP - 400

EP - 406

JO - Solid State Phenomena

JF - Solid State Phenomena

T2 - 5th Euro-Asian Symposium on Trends in MAGnetism: Nanomagnetism, EASTMAG 2013

Y2 - 15 September 2013 through 21 September 2013

ER -

Photovoltage spectroscopy of dipolar spin waves in Dy micromagnets

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Alain Nogaret, FInstP

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Photovoltage spectroscopy of dipolar spin waves in Dy micromagnets

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Alain Nogaret, FInstP

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