super( 153)Eu and super( 69,71)Ga Zero-Field NMR Study of Antiferromagnetic State in EuGa sub( 4)

We report ...Eu and ...Ga NMR under a zero magnetic field on the antiferromagnetic state of EuGa... with T N ...16 K. We have successfully observed a ...Eu zero-field NMR signal with well-resolved nuclear quadrupole splitting in the antiferromagnetic state of EuGa... ...Ga zero-field NMR spectra wer...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2013-10, Vol.82 (10), p.1-1
Main Authors: Yogi, Mamoru, Nakamura, Saori, Higa, Nonoka, Niki, Haruo, Hirose, Yusuke, Onuki, Yoshichika, Harima, Hisatomo
Format: Article
Language:English
Subjects:
Antiferromagnetism
Asymmetry
Magnetic fields
Magnetization
Nuclear magnetic resonance
Quadrupoles
Simulation
Spectra
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Summary:We report ...Eu and ...Ga NMR under a zero magnetic field on the antiferromagnetic state of EuGa... with T N ...16 K. We have successfully observed a ...Eu zero-field NMR signal with well-resolved nuclear quadrupole splitting in the antiferromagnetic state of EuGa... ...Ga zero-field NMR spectra were also observed below T N . The internal field and nuclear quadrupole frequency are estimated from a simulation of the spectra by the exact diagonalization of the nuclear spin Hamiltonian matrix. The asymmetrically split zero-field NMR spectra were explained by considering a configuration of the magnetic moments of Eu... lying in the basal ab -plane. The temperature dependence of the internal field, which is proportional to the sublattice magnetization, can be explained by the Brillouin function with J=S=7/2 . (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0031-9015
1347-4073