TY - JOUR
T1 - Antiferromagnetic resonance in the cubic perovskite (formula presented)
AU - Yamaguchi, H.
AU - Katsumata, K.
AU - Hagiwara, M.
AU - Tokunaga, M.
AU - Liu, H. L.
AU - Zibold, A.
AU - Tanner, D. B.
AU - Wang, Y. J.
PY - 1999
Y1 - 1999
N2 - Low-temperature high-magnetic-field far-infrared spectroscopy and electron-spin-resonance measurements have been performed on single crystals of the cubic perovskite (Formula presented) We found the absorption at (Formula presented) observed by Richards [P. L. Richards, J. Appl. Phys. 34, 1237 (1963)] that was attributed to antiferromagnetic resonance (AFMR) is not magnetic in origin. Instead, a different absorption is well fit by a theory of AFMR with uniaxial anisotropy. Analysis yields an anisotropy energy of (Formula presented) The ratio between the anisotropy field and the exchange field is (Formula presented) Thus, (Formula presented) is an excellent example of a Heisenberg antiferromagnet.
AB - Low-temperature high-magnetic-field far-infrared spectroscopy and electron-spin-resonance measurements have been performed on single crystals of the cubic perovskite (Formula presented) We found the absorption at (Formula presented) observed by Richards [P. L. Richards, J. Appl. Phys. 34, 1237 (1963)] that was attributed to antiferromagnetic resonance (AFMR) is not magnetic in origin. Instead, a different absorption is well fit by a theory of AFMR with uniaxial anisotropy. Analysis yields an anisotropy energy of (Formula presented) The ratio between the anisotropy field and the exchange field is (Formula presented) Thus, (Formula presented) is an excellent example of a Heisenberg antiferromagnet.
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U2 - 10.1103/PhysRevB.59.6021
DO - 10.1103/PhysRevB.59.6021
M3 - Article
AN - SCOPUS:2642513616
SN - 1098-0121
VL - 59
SP - 6021
EP - 6023
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 9
ER -