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Selective Excitation of Terahertz Magnetic and Electric Dipoles in Er3+ Ions by Femtosecond Laser Pulses in ErFeO3

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Selective Excitation of Terahertz Magnetic and Electric Dipoles in Er3+ Ions by Femtosecond Laser Pulses in ErFeO3. / Mikhaylovskiy, Rostislav; Huisman, T.J.; Pisarev, R.V. et al.
In: Physical review letters, Vol. 118, 017205, 06.01.2017.

Research output: Contribution to Journal/MagazineLetterpeer-review

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Mikhaylovskiy R, Huisman TJ, Pisarev RV, Rasing T, Kimel AV. Selective Excitation of Terahertz Magnetic and Electric Dipoles in Er3+ Ions by Femtosecond Laser Pulses in ErFeO3. Physical review letters. 2017 Jan 6;118:017205. doi: 10.1103/PhysRevLett.118.017205

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@article{83effdf96919437ab457aa2e9ba28373,
title = "Selective Excitation of Terahertz Magnetic and Electric Dipoles in Er3+ Ions by Femtosecond Laser Pulses in ErFeO3",
abstract = "We show that femtosecond laser pulse excitation of the orthoferrite ErFeO3 triggers pico- and subpicosecond dynamics of magnetic and electric dipoles associated with the low energy electronic states of the Er3+ ions. These dynamics are readily revealed by using polarization sensitive terahertz emission spectroscopy. It is shown that by changing the polarization of the femtosecond laser pulse one can excite either electric dipole-active or magnetic dipole-active transitions between the Kramers doublets of the 4I15/2 ground state of the Er3+(4f11) ions. These observations serve as a proof of principle of polarization-selective control of both electric and magnetic degrees of freedom at terahertz frequencies, opening up new vistas for optical manipulation of magnetoelectric materials.",
keywords = "terahertz, antiferromagnetism, magneto-optics, magnetic insulators, multiferroics",
author = "Rostislav Mikhaylovskiy and T.J. Huisman and R.V. Pisarev and Th. Rasing and A.V. Kimel",
year = "2017",
month = jan,
day = "6",
doi = "10.1103/PhysRevLett.118.017205",
language = "English",
volume = "118",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Selective Excitation of Terahertz Magnetic and Electric Dipoles in Er3+ Ions by Femtosecond Laser Pulses in ErFeO3

AU - Mikhaylovskiy, Rostislav

AU - Huisman, T.J.

AU - Pisarev, R.V.

AU - Rasing, Th.

AU - Kimel, A.V.

PY - 2017/1/6

Y1 - 2017/1/6

N2 - We show that femtosecond laser pulse excitation of the orthoferrite ErFeO3 triggers pico- and subpicosecond dynamics of magnetic and electric dipoles associated with the low energy electronic states of the Er3+ ions. These dynamics are readily revealed by using polarization sensitive terahertz emission spectroscopy. It is shown that by changing the polarization of the femtosecond laser pulse one can excite either electric dipole-active or magnetic dipole-active transitions between the Kramers doublets of the 4I15/2 ground state of the Er3+(4f11) ions. These observations serve as a proof of principle of polarization-selective control of both electric and magnetic degrees of freedom at terahertz frequencies, opening up new vistas for optical manipulation of magnetoelectric materials.

AB - We show that femtosecond laser pulse excitation of the orthoferrite ErFeO3 triggers pico- and subpicosecond dynamics of magnetic and electric dipoles associated with the low energy electronic states of the Er3+ ions. These dynamics are readily revealed by using polarization sensitive terahertz emission spectroscopy. It is shown that by changing the polarization of the femtosecond laser pulse one can excite either electric dipole-active or magnetic dipole-active transitions between the Kramers doublets of the 4I15/2 ground state of the Er3+(4f11) ions. These observations serve as a proof of principle of polarization-selective control of both electric and magnetic degrees of freedom at terahertz frequencies, opening up new vistas for optical manipulation of magnetoelectric materials.

KW - terahertz

KW - antiferromagnetism

KW - magneto-optics

KW - magnetic insulators

KW - multiferroics

U2 - 10.1103/PhysRevLett.118.017205

DO - 10.1103/PhysRevLett.118.017205

M3 - Letter

VL - 118

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

M1 - 017205

ER -