Pulsed low-field electrically detected magnetic resonance

L. Dreher, F. Hoehne, H. Morishita, H. Huebl, M. Stutzmann, Kohei M Itoh, M. S. Brandt

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We present pulsed electrically detected magnetic resonance (EDMR) measurements at low magnetic fields using phosphorus-doped silicon with natural isotope composition as a model system. Our measurements show that pulsed EDMR experiments, well established at X-band frequencies (10 GHz), such as coherent spin rotations, Hahn echoes, and measurements of parallel and antiparallel spin pair life times are also feasible at frequencies in the megahertz (MHz) regime. We find that the Rabi frequency of the coupled P31 electron-nuclear spin system scales with the magnetic field as predicted by the spin Hamiltonian, while the measured spin coherence and recombination times do not strongly depend on the magnetic field in the region investigated. The usefulness of pulsed low-field EDMR for measurements of small hyperfine interactions is demonstrated by electron spin echo envelope modulation measurements of the Pb0 dangling-bond state at the Si/SiO2 interface. A pronounced modulation with a frequency at the free Larmor frequency of hydrogen nuclei was observed for radio frequencies between 38 and 400 MHz, attributed to the nuclear magnetic resonance of hydrogen in an adsorbed layer of water. This demonstrates the high sensitivity of low-field EDMR also for spins not directly participating in the spin-dependent transport investigated.

Original languageEnglish
Article number075314
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume91
Issue number7
DOIs
Publication statusPublished - 2015 Feb 25

Fingerprint

Magnetic resonance
magnetic resonance
Magnetic fields
Hydrogen
Modulation
Magnetic resonance measurement
Hamiltonians
electron spin
Dangling bonds
Electrons
echoes
Silicon
magnetic fields
Isotopes
Phosphorus
Frequency bands
modulation
Nuclear magnetic resonance
hydrogen
superhigh frequencies

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Pulsed low-field electrically detected magnetic resonance. / Dreher, L.; Hoehne, F.; Morishita, H.; Huebl, H.; Stutzmann, M.; Itoh, Kohei M; Brandt, M. S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 91, No. 7, 075314, 25.02.2015.

Research output: Contribution to journalArticle

Dreher, L. ; Hoehne, F. ; Morishita, H. ; Huebl, H. ; Stutzmann, M. ; Itoh, Kohei M ; Brandt, M. S. / Pulsed low-field electrically detected magnetic resonance. In: Physical Review B - Condensed Matter and Materials Physics. 2015 ; Vol. 91, No. 7.
@article{7070220631234cd0b2eb8c706613c6ac,
title = "Pulsed low-field electrically detected magnetic resonance",
abstract = "We present pulsed electrically detected magnetic resonance (EDMR) measurements at low magnetic fields using phosphorus-doped silicon with natural isotope composition as a model system. Our measurements show that pulsed EDMR experiments, well established at X-band frequencies (10 GHz), such as coherent spin rotations, Hahn echoes, and measurements of parallel and antiparallel spin pair life times are also feasible at frequencies in the megahertz (MHz) regime. We find that the Rabi frequency of the coupled P31 electron-nuclear spin system scales with the magnetic field as predicted by the spin Hamiltonian, while the measured spin coherence and recombination times do not strongly depend on the magnetic field in the region investigated. The usefulness of pulsed low-field EDMR for measurements of small hyperfine interactions is demonstrated by electron spin echo envelope modulation measurements of the Pb0 dangling-bond state at the Si/SiO2 interface. A pronounced modulation with a frequency at the free Larmor frequency of hydrogen nuclei was observed for radio frequencies between 38 and 400 MHz, attributed to the nuclear magnetic resonance of hydrogen in an adsorbed layer of water. This demonstrates the high sensitivity of low-field EDMR also for spins not directly participating in the spin-dependent transport investigated.",
author = "L. Dreher and F. Hoehne and H. Morishita and H. Huebl and M. Stutzmann and Itoh, {Kohei M} and Brandt, {M. S.}",
year = "2015",
month = "2",
day = "25",
doi = "10.1103/PhysRevB.91.075314",
language = "English",
volume = "91",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "7",

}

TY - JOUR

T1 - Pulsed low-field electrically detected magnetic resonance

AU - Dreher, L.

AU - Hoehne, F.

AU - Morishita, H.

AU - Huebl, H.

AU - Stutzmann, M.

AU - Itoh, Kohei M

AU - Brandt, M. S.

PY - 2015/2/25

Y1 - 2015/2/25

N2 - We present pulsed electrically detected magnetic resonance (EDMR) measurements at low magnetic fields using phosphorus-doped silicon with natural isotope composition as a model system. Our measurements show that pulsed EDMR experiments, well established at X-band frequencies (10 GHz), such as coherent spin rotations, Hahn echoes, and measurements of parallel and antiparallel spin pair life times are also feasible at frequencies in the megahertz (MHz) regime. We find that the Rabi frequency of the coupled P31 electron-nuclear spin system scales with the magnetic field as predicted by the spin Hamiltonian, while the measured spin coherence and recombination times do not strongly depend on the magnetic field in the region investigated. The usefulness of pulsed low-field EDMR for measurements of small hyperfine interactions is demonstrated by electron spin echo envelope modulation measurements of the Pb0 dangling-bond state at the Si/SiO2 interface. A pronounced modulation with a frequency at the free Larmor frequency of hydrogen nuclei was observed for radio frequencies between 38 and 400 MHz, attributed to the nuclear magnetic resonance of hydrogen in an adsorbed layer of water. This demonstrates the high sensitivity of low-field EDMR also for spins not directly participating in the spin-dependent transport investigated.

AB - We present pulsed electrically detected magnetic resonance (EDMR) measurements at low magnetic fields using phosphorus-doped silicon with natural isotope composition as a model system. Our measurements show that pulsed EDMR experiments, well established at X-band frequencies (10 GHz), such as coherent spin rotations, Hahn echoes, and measurements of parallel and antiparallel spin pair life times are also feasible at frequencies in the megahertz (MHz) regime. We find that the Rabi frequency of the coupled P31 electron-nuclear spin system scales with the magnetic field as predicted by the spin Hamiltonian, while the measured spin coherence and recombination times do not strongly depend on the magnetic field in the region investigated. The usefulness of pulsed low-field EDMR for measurements of small hyperfine interactions is demonstrated by electron spin echo envelope modulation measurements of the Pb0 dangling-bond state at the Si/SiO2 interface. A pronounced modulation with a frequency at the free Larmor frequency of hydrogen nuclei was observed for radio frequencies between 38 and 400 MHz, attributed to the nuclear magnetic resonance of hydrogen in an adsorbed layer of water. This demonstrates the high sensitivity of low-field EDMR also for spins not directly participating in the spin-dependent transport investigated.

UR - http://www.scopus.com/inward/record.url?scp=84924061249&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84924061249&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.91.075314

DO - 10.1103/PhysRevB.91.075314

M3 - Article

AN - SCOPUS:84924061249

VL - 91

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 7

M1 - 075314

ER -