Persistent photoconductivity in ii-vi magnetic two-dimensional electron gases

O. Ray, I. P. Smorchkova, Nitin Samarth

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Persistent photoconductivity is studied in ZnSe/(Zn,Cd,Mn)Se two-dimensional electron-gas structures as a function of Mn concentration. Measurements of spectral photoconductivity, photoinduced transient spectroscopy, and deep-level transient Fourier spectroscopy show the presence of a deep trap located 2.1 eV below the conduction band at near room temperature. The buildup of persistent photoconductivity and its decay kinetics are formulated in accordance with the large lattice relaxation model. Implications of the presence of Mn in the two-dimensional electron gas are discussed.

Original languageEnglish (US)
Pages (from-to)9810-9813
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number15
DOIs
StatePublished - Jan 1 1999

Fingerprint

Two dimensional electron gas
Photoconductivity
photoconductivity
electron gas
Spectroscopy
Conduction bands
spectroscopy
conduction bands
traps
Kinetics
kinetics
decay
room temperature
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

@article{8973a71d68194919b204626f766d38bc,
title = "Persistent photoconductivity in ii-vi magnetic two-dimensional electron gases",
abstract = "Persistent photoconductivity is studied in ZnSe/(Zn,Cd,Mn)Se two-dimensional electron-gas structures as a function of Mn concentration. Measurements of spectral photoconductivity, photoinduced transient spectroscopy, and deep-level transient Fourier spectroscopy show the presence of a deep trap located 2.1 eV below the conduction band at near room temperature. The buildup of persistent photoconductivity and its decay kinetics are formulated in accordance with the large lattice relaxation model. Implications of the presence of Mn in the two-dimensional electron gas are discussed.",
author = "O. Ray and Smorchkova, {I. P.} and Nitin Samarth",
year = "1999",
month = "1",
day = "1",
doi = "10.1103/PhysRevB.59.9810",
language = "English (US)",
volume = "59",
pages = "9810--9813",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "15",

}

Persistent photoconductivity in ii-vi magnetic two-dimensional electron gases. / Ray, O.; Smorchkova, I. P.; Samarth, Nitin.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 59, No. 15, 01.01.1999, p. 9810-9813.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Persistent photoconductivity in ii-vi magnetic two-dimensional electron gases

AU - Ray, O.

AU - Smorchkova, I. P.

AU - Samarth, Nitin

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Persistent photoconductivity is studied in ZnSe/(Zn,Cd,Mn)Se two-dimensional electron-gas structures as a function of Mn concentration. Measurements of spectral photoconductivity, photoinduced transient spectroscopy, and deep-level transient Fourier spectroscopy show the presence of a deep trap located 2.1 eV below the conduction band at near room temperature. The buildup of persistent photoconductivity and its decay kinetics are formulated in accordance with the large lattice relaxation model. Implications of the presence of Mn in the two-dimensional electron gas are discussed.

AB - Persistent photoconductivity is studied in ZnSe/(Zn,Cd,Mn)Se two-dimensional electron-gas structures as a function of Mn concentration. Measurements of spectral photoconductivity, photoinduced transient spectroscopy, and deep-level transient Fourier spectroscopy show the presence of a deep trap located 2.1 eV below the conduction band at near room temperature. The buildup of persistent photoconductivity and its decay kinetics are formulated in accordance with the large lattice relaxation model. Implications of the presence of Mn in the two-dimensional electron gas are discussed.

UR - http://www.scopus.com/inward/record.url?scp=0004656457&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0004656457&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.59.9810

DO - 10.1103/PhysRevB.59.9810

M3 - Article

VL - 59

SP - 9810

EP - 9813

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 15

ER -