About: Huge tunnelling anisotropic magnetoresistance in (Ga,Mn)As nanoconstrictions

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Silná tunelovací anisotropní magnetorezistance v (Ga,Mn)As nano-konstrikcích je studována experimenálně a diskutována teoreticky (cs) We report here large anisotropic magnetoresistance (AMR) behaviours in single lateral (Ga,Mn)As nanoconstrictions of up to 1300%, along with large multistable telegraphic switching. The nanoconstriction devices are fabricated using high-resolution electron beam lithography of a 5 nm thick (Ga,Mn)As epilayer. The unusual behaviour exhibited by these devices is discussed in the context of existing theories for enhanced AMR ferromagnetic semiconductor nanoscale devices, particularly with regard to the dependence on the magnetotransport of the bulk material. We conclude that our results are most consistent with the Coulomb blockade AMR mechanism. We report here large anisotropic magnetoresistance (AMR) behaviours in single lateral (Ga,Mn)As nanoconstrictions of up to 1300%, along with large multistable telegraphic switching. The nanoconstriction devices are fabricated using high-resolution electron beam lithography of a 5 nm thick (Ga,Mn)As epilayer. The unusual behaviour exhibited by these devices is discussed in the context of existing theories for enhanced AMR ferromagnetic semiconductor nanoscale devices, particularly with regard to the dependence on the magnetotransport of the bulk material. We conclude that our results are most consistent with the Coulomb blockade AMR mechanism. (en)
Title	Huge tunnelling anisotropic magnetoresistance in (Ga,Mn)As nanoconstrictions Silná tunelovací anisotropní magnetorezistance v (Ga,Mn)As nano-konstrikcích (cs) Huge tunnelling anisotropic magnetoresistance in (Ga,Mn)As nanoconstrictions (en)
skos:prefLabel	Huge tunnelling anisotropic magnetoresistance in (Ga,Mn)As nanoconstrictions Silná tunelovací anisotropní magnetorezistance v (Ga,Mn)As nano-konstrikcích (cs) Huge tunnelling anisotropic magnetoresistance in (Ga,Mn)As nanoconstrictions (en)
skos:notation	RIV/68378271:_____/08:00314836!RIV09-AV0-68378271
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/04/1519), P(GA202/05/0575), P(GEFON/06/E002), P(LC510), Z(AV0Z10100521)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Jungwirth, Tomáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	370872
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/08:00314836
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ferromagnetic semiconductor; nanoconstriction; tunneling anisotropic magnetoresistance, (en)
http://linked.open.../riv/klicoveSlovo	ferromagnetic semiconductor nanoconstriction tunneling anisotropic magnetoresistance
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[0724DBB1A9A4]
http://linked.open...i/riv/nazevZdroje	New Journal of Physics
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	11 (xsd:int)
http://linked.open...vavai/riv/projekt	Center of nanotechnology and materials for nanoelectronics Spin-coherent transport and control in quantum nanostructures Low-temperature molecular beam epitaxy of ferromagnetic (Ga,Mn)As Theoretical research in semiconductor spintronics
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	10
http://linked.open...iv/tvurceVysledku	Jungwirth, Tomáš Campion, R. P. Foxon, C. T. Gallagher, B. L. Edmonds, K. W. Yasin, S. Wunderlich, J. Khalid, M. N. Giddings, A. D. Makarovsky, O. N. Williams, D. A.
http://linked.open...ain/vavai/riv/wos	000258409700004
http://linked.open...n/vavai/riv/zamer	Physics and technology of nanostructures, surfaces and thin films
issn	1367-2630
number of pages	9 (xsd:int)

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