The spin excitation spectrum in quantum Hall systems: Insights from light scattering experiments

Yann Gallais; Thomas H. Kirschenmann; Yan Jun; Aron Pinczuk; Loren N. Pfeiffer; Ken W. West

doi:10.1142/s0217979207042653

The spin excitation spectrum in quantum Hall systems: Insights from light scattering experiments

Yann Gallais, Thomas H. Kirschenmann, Yan Jun, Aron Pinczuk, Loren N. Pfeiffer, Ken W. West

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

3 Scopus citations

Abstract

Collective spin excitations in quantum Hall systems are studied via inelastic light scattering. In the fractional quantum Hall effect regime, composite fermion spin excitations are observed in the range 1/3<v <2/5. They reveal a transition from free to strongly interacting composite fermions. At v=1, a shift of the spin-wave energy at finite wavevector from the bare Zeeman energy is observed. It allows us to evaluate the spin-stiffness of the quantum Hall ferromagnet.

Original language	English (US)
Pages (from-to)	1209-1218
Number of pages	10
Journal	International Journal of Modern Physics B
Volume	21
Issue number	8-9
DOIs	https://doi.org/10.1142/s0217979207042653
State	Published - Apr 10 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Statistical and Nonlinear Physics
Condensed Matter Physics

Keywords

Composite fermions
Light scattering
Quantum Hall ferromagnet

Access to Document

10.1142/s0217979207042653

Cite this

@article{b00386ce31dc4fbeaf68dc546a89e62c,

title = "The spin excitation spectrum in quantum Hall systems: Insights from light scattering experiments",

abstract = "Collective spin excitations in quantum Hall systems are studied via inelastic light scattering. In the fractional quantum Hall effect regime, composite fermion spin excitations are observed in the range 1/3",

keywords = "Composite fermions, Light scattering, Quantum Hall ferromagnet",

author = "Yann Gallais and Kirschenmann, {Thomas H.} and Yan Jun and Aron Pinczuk and Pfeiffer, {Loren N.} and West, {Ken W.}",

year = "2007",

month = apr,

day = "10",

doi = "10.1142/s0217979207042653",

language = "English (US)",

volume = "21",

pages = "1209--1218",

journal = "International Journal of Modern Physics B",

issn = "0217-9792",

publisher = "World Scientific",

number = "8-9",

}

TY - JOUR

T1 - The spin excitation spectrum in quantum Hall systems

T2 - Insights from light scattering experiments

AU - Gallais, Yann

AU - Kirschenmann, Thomas H.

AU - Jun, Yan

AU - Pinczuk, Aron

AU - Pfeiffer, Loren N.

AU - West, Ken W.

PY - 2007/4/10

Y1 - 2007/4/10

N2 - Collective spin excitations in quantum Hall systems are studied via inelastic light scattering. In the fractional quantum Hall effect regime, composite fermion spin excitations are observed in the range 1/3

AB - Collective spin excitations in quantum Hall systems are studied via inelastic light scattering. In the fractional quantum Hall effect regime, composite fermion spin excitations are observed in the range 1/3

KW - Composite fermions

KW - Light scattering

KW - Quantum Hall ferromagnet

UR - http://www.scopus.com/inward/record.url?scp=34248674133&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34248674133&partnerID=8YFLogxK

U2 - 10.1142/s0217979207042653

DO - 10.1142/s0217979207042653

M3 - Article

AN - SCOPUS:34248674133

SN - 0217-9792

VL - 21

SP - 1209

EP - 1218

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 8-9

ER -

The spin excitation spectrum in quantum Hall systems: Insights from light scattering experiments

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

Other files and links

Fingerprint

Cite this