Critical resistance in the alas quantum hall ferromagnet

E. P. De Poortere; E. Tutuc; M. Shayegan

doi:10.1103/PhysRevLett.91.216802

Critical resistance in the alas quantum hall ferromagnet

E. P. De Poortere, E. Tutuc, M. Shayegan

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

24 Scopus citations

Abstract

Magnetic transitions in AlAs two-dimensional electrons give rise to sharp resistance spikes within the quantum Hall effect. Such spikes are likely caused by carrier scattering at magnetic domain walls below the Curie temperature. We report a critical behavior in the temperature dependence of the spike width and amplitude, from which we deduce the Curie temperature of the quantum Hall ferromagnet. Our data also reveal that the Curie temperature increases monotonically with carrier density.

Original language	English (US)
Journal	Physical review letters
Volume	91
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.91.216802
State	Published - 2003

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.91.216802

Cite this

@article{8b796995298e44cd80e1d5f6b503ab87,

title = "Critical resistance in the alas quantum hall ferromagnet",

abstract = "Magnetic transitions in AlAs two-dimensional electrons give rise to sharp resistance spikes within the quantum Hall effect. Such spikes are likely caused by carrier scattering at magnetic domain walls below the Curie temperature. We report a critical behavior in the temperature dependence of the spike width and amplitude, from which we deduce the Curie temperature of the quantum Hall ferromagnet. Our data also reveal that the Curie temperature increases monotonically with carrier density.",

author = "{De Poortere}, {E. P.} and E. Tutuc and M. Shayegan",

note = "Funding Information: This work was supported by the Princeton Uni ?>versity NSF MRSEC grant. We acknowledge fruitful ?>discussions with Ravin Bhatt, Duncan Haldane, and Allan MacDonald, and thank Eric Palm and Tim Murphy for their technical assistance. Part of this work was performed at the National High Magnetic Field Laboratory in Tallahassee, FL, which is also supported by the NSF.",

year = "2003",

doi = "10.1103/PhysRevLett.91.216802",

language = "English (US)",

volume = "91",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

}

TY - JOUR

T1 - Critical resistance in the alas quantum hall ferromagnet

AU - De Poortere, E. P.

AU - Tutuc, E.

AU - Shayegan, M.

N1 - Funding Information: This work was supported by the Princeton Uni ?>versity NSF MRSEC grant. We acknowledge fruitful ?>discussions with Ravin Bhatt, Duncan Haldane, and Allan MacDonald, and thank Eric Palm and Tim Murphy for their technical assistance. Part of this work was performed at the National High Magnetic Field Laboratory in Tallahassee, FL, which is also supported by the NSF.

PY - 2003

Y1 - 2003

N2 - Magnetic transitions in AlAs two-dimensional electrons give rise to sharp resistance spikes within the quantum Hall effect. Such spikes are likely caused by carrier scattering at magnetic domain walls below the Curie temperature. We report a critical behavior in the temperature dependence of the spike width and amplitude, from which we deduce the Curie temperature of the quantum Hall ferromagnet. Our data also reveal that the Curie temperature increases monotonically with carrier density.

AB - Magnetic transitions in AlAs two-dimensional electrons give rise to sharp resistance spikes within the quantum Hall effect. Such spikes are likely caused by carrier scattering at magnetic domain walls below the Curie temperature. We report a critical behavior in the temperature dependence of the spike width and amplitude, from which we deduce the Curie temperature of the quantum Hall ferromagnet. Our data also reveal that the Curie temperature increases monotonically with carrier density.

UR - http://www.scopus.com/inward/record.url?scp=0346421117&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0346421117&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.91.216802

DO - 10.1103/PhysRevLett.91.216802

M3 - Article

C2 - 14683327

AN - SCOPUS:0346421117

SN - 0031-9007

VL - 91

JO - Physical review letters

JF - Physical review letters

IS - 21

ER -

Critical resistance in the alas quantum hall ferromagnet

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this