Nuclear-quadrupole induction of atomic polarization

Tycho Sleator, E. L. Hahn, Michael B. Heaney, Claude Hilbert, John Clarke

    Research output: Contribution to journalArticle

    Abstract

    Nuclear-quadrupole-induced electric signals are measured as a new resonance response mechanism that is the reciprocal of the Stark effect in magnetic resonance. In single crystals that have noncentrosymmetry with respect to the sites of precessing nuclear-quadrupole moments, the electronic polarizability of atoms and chemical bonds on opposite sides of the nuclear-quadrupole moment is not the same. The oscillating electric field produced by the quadrupole moment induces a net electric dipole moment in its neighboring electronic environment. The coherent summation of these dipole moments over the Boltzmann distribution of the nuclear ensemble produces an oscillating macroscopic electric dipole moment. The sample is placed between the plates of a capacitor that is tuned with an inductance to the nuclear precession frequency. Coherent nuclear precession is initiated following a rf magnetic field pulse that tips the nuclear spins into the precession mode. The voltage signal from the capacitor gives rise to an oscillating current in the series circuit and magnetic flux in the inductor. Stray magnetic induction pickup signals are balanced out. The flux is coupled to a dc superconducting quantum interference device (SQUID), which produces a voltage output at the nuclear-quadrupole resonance frequency of 30 MHz for Cl35 nuclei in NaClO3 at 4.2 K. The Cl35 nucleus induces electric dipole moments in nearby oxygen atoms bonded to the Cl atom. Measured free-precession electric signals are compared to the predictions of a point-oxygen-atom polarizability model applied to the CO bond. The technique is sensitive to chirality and to bond angles.

    Original languageEnglish (US)
    Pages (from-to)8609-8624
    Number of pages16
    JournalPhysical Review B
    Volume38
    Issue number13
    DOIs
    StatePublished - 1988

    Fingerprint

    Electric dipole moments
    precession
    induction
    dipole moments
    electric moments
    quadrupoles
    Polarization
    electric dipoles
    Atoms
    polarization
    moments
    oxygen atoms
    capacitors
    Capacitors
    Nuclear quadrupole resonance
    Oxygen
    Stark effect
    nuclei
    Boltzmann distribution
    nuclear quadrupole resonance

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Sleator, T., Hahn, E. L., Heaney, M. B., Hilbert, C., & Clarke, J. (1988). Nuclear-quadrupole induction of atomic polarization. Physical Review B, 38(13), 8609-8624. https://doi.org/10.1103/PhysRevB.38.8609

    Nuclear-quadrupole induction of atomic polarization. / Sleator, Tycho; Hahn, E. L.; Heaney, Michael B.; Hilbert, Claude; Clarke, John.

    In: Physical Review B, Vol. 38, No. 13, 1988, p. 8609-8624.

    Research output: Contribution to journalArticle

    Sleator, T, Hahn, EL, Heaney, MB, Hilbert, C & Clarke, J 1988, 'Nuclear-quadrupole induction of atomic polarization', Physical Review B, vol. 38, no. 13, pp. 8609-8624. https://doi.org/10.1103/PhysRevB.38.8609
    Sleator T, Hahn EL, Heaney MB, Hilbert C, Clarke J. Nuclear-quadrupole induction of atomic polarization. Physical Review B. 1988;38(13):8609-8624. https://doi.org/10.1103/PhysRevB.38.8609
    Sleator, Tycho ; Hahn, E. L. ; Heaney, Michael B. ; Hilbert, Claude ; Clarke, John. / Nuclear-quadrupole induction of atomic polarization. In: Physical Review B. 1988 ; Vol. 38, No. 13. pp. 8609-8624.
    @article{c99f091b7a97484dbea3d022038c596c,
    title = "Nuclear-quadrupole induction of atomic polarization",
    abstract = "Nuclear-quadrupole-induced electric signals are measured as a new resonance response mechanism that is the reciprocal of the Stark effect in magnetic resonance. In single crystals that have noncentrosymmetry with respect to the sites of precessing nuclear-quadrupole moments, the electronic polarizability of atoms and chemical bonds on opposite sides of the nuclear-quadrupole moment is not the same. The oscillating electric field produced by the quadrupole moment induces a net electric dipole moment in its neighboring electronic environment. The coherent summation of these dipole moments over the Boltzmann distribution of the nuclear ensemble produces an oscillating macroscopic electric dipole moment. The sample is placed between the plates of a capacitor that is tuned with an inductance to the nuclear precession frequency. Coherent nuclear precession is initiated following a rf magnetic field pulse that tips the nuclear spins into the precession mode. The voltage signal from the capacitor gives rise to an oscillating current in the series circuit and magnetic flux in the inductor. Stray magnetic induction pickup signals are balanced out. The flux is coupled to a dc superconducting quantum interference device (SQUID), which produces a voltage output at the nuclear-quadrupole resonance frequency of 30 MHz for Cl35 nuclei in NaClO3 at 4.2 K. The Cl35 nucleus induces electric dipole moments in nearby oxygen atoms bonded to the Cl atom. Measured free-precession electric signals are compared to the predictions of a point-oxygen-atom polarizability model applied to the CO bond. The technique is sensitive to chirality and to bond angles.",
    author = "Tycho Sleator and Hahn, {E. L.} and Heaney, {Michael B.} and Claude Hilbert and John Clarke",
    year = "1988",
    doi = "10.1103/PhysRevB.38.8609",
    language = "English (US)",
    volume = "38",
    pages = "8609--8624",
    journal = "Physical Review B-Condensed Matter",
    issn = "1098-0121",
    publisher = "American Physical Society",
    number = "13",

    }

    TY - JOUR

    T1 - Nuclear-quadrupole induction of atomic polarization

    AU - Sleator, Tycho

    AU - Hahn, E. L.

    AU - Heaney, Michael B.

    AU - Hilbert, Claude

    AU - Clarke, John

    PY - 1988

    Y1 - 1988

    N2 - Nuclear-quadrupole-induced electric signals are measured as a new resonance response mechanism that is the reciprocal of the Stark effect in magnetic resonance. In single crystals that have noncentrosymmetry with respect to the sites of precessing nuclear-quadrupole moments, the electronic polarizability of atoms and chemical bonds on opposite sides of the nuclear-quadrupole moment is not the same. The oscillating electric field produced by the quadrupole moment induces a net electric dipole moment in its neighboring electronic environment. The coherent summation of these dipole moments over the Boltzmann distribution of the nuclear ensemble produces an oscillating macroscopic electric dipole moment. The sample is placed between the plates of a capacitor that is tuned with an inductance to the nuclear precession frequency. Coherent nuclear precession is initiated following a rf magnetic field pulse that tips the nuclear spins into the precession mode. The voltage signal from the capacitor gives rise to an oscillating current in the series circuit and magnetic flux in the inductor. Stray magnetic induction pickup signals are balanced out. The flux is coupled to a dc superconducting quantum interference device (SQUID), which produces a voltage output at the nuclear-quadrupole resonance frequency of 30 MHz for Cl35 nuclei in NaClO3 at 4.2 K. The Cl35 nucleus induces electric dipole moments in nearby oxygen atoms bonded to the Cl atom. Measured free-precession electric signals are compared to the predictions of a point-oxygen-atom polarizability model applied to the CO bond. The technique is sensitive to chirality and to bond angles.

    AB - Nuclear-quadrupole-induced electric signals are measured as a new resonance response mechanism that is the reciprocal of the Stark effect in magnetic resonance. In single crystals that have noncentrosymmetry with respect to the sites of precessing nuclear-quadrupole moments, the electronic polarizability of atoms and chemical bonds on opposite sides of the nuclear-quadrupole moment is not the same. The oscillating electric field produced by the quadrupole moment induces a net electric dipole moment in its neighboring electronic environment. The coherent summation of these dipole moments over the Boltzmann distribution of the nuclear ensemble produces an oscillating macroscopic electric dipole moment. The sample is placed between the plates of a capacitor that is tuned with an inductance to the nuclear precession frequency. Coherent nuclear precession is initiated following a rf magnetic field pulse that tips the nuclear spins into the precession mode. The voltage signal from the capacitor gives rise to an oscillating current in the series circuit and magnetic flux in the inductor. Stray magnetic induction pickup signals are balanced out. The flux is coupled to a dc superconducting quantum interference device (SQUID), which produces a voltage output at the nuclear-quadrupole resonance frequency of 30 MHz for Cl35 nuclei in NaClO3 at 4.2 K. The Cl35 nucleus induces electric dipole moments in nearby oxygen atoms bonded to the Cl atom. Measured free-precession electric signals are compared to the predictions of a point-oxygen-atom polarizability model applied to the CO bond. The technique is sensitive to chirality and to bond angles.

    UR - http://www.scopus.com/inward/record.url?scp=5744241419&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=5744241419&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevB.38.8609

    DO - 10.1103/PhysRevB.38.8609

    M3 - Article

    VL - 38

    SP - 8609

    EP - 8624

    JO - Physical Review B-Condensed Matter

    JF - Physical Review B-Condensed Matter

    SN - 1098-0121

    IS - 13

    ER -