@article{ff352d4a4edd446db57b0f86b22541b2,
title = "Low-energy magnetic excitations in the mixed spin-(12, 52) chain",
abstract = "We present studies on the low-energy magnetic excitations in the Lieb-Mattis (LM) ferrimagnetic phase. We investigate the low-energy magnetic excitations in the mixed spin-(12,52) chain (4-Br-o-MePy-V)FeCl4 based on low-temperature specific heat and multifrequency electron spin resonance (ESR) measurements. A clear T term is observed in the specific heat, which indicates a contribution of the low-energy magnetic excitation with a ferromagnetic quadratic dispersion expected in the LM ferrimagnetic state. Through the ESR mode analysis, we examine the effects of magnetic anisotropy on the excited states in the LM plateau phase. ",
author = "H. Yamaguchi and Y. Iwasaki and Y. Kono and T. Okita and A. Matsuo and M. Akaki and M. Hagiwara and Y. Hosokoshi",
note = "Funding Information: We thank T. Tonegawa, K. Okamoto, and S. C. Furuya for valuable discussions. This research was partly supported by Grant for Basic Science Research Projects from KAKENHI (Grants No. 17H04850, No. 19J01004, and No. 19H04550), the Shorai Foundation for Science and Technology, Izumi Science and Technology Foundation, SEI Group CSR Foundation, and Nanotechnology Platform Program (Molecule and Material Synthesis) of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. A part of this work was performed at the Center for Advanced High Magnetic Field Science in Osaka University under the interuniversity cooperative research program of the joint-research program of ISSP, the University of Tokyo. Publisher Copyright: {\textcopyright} 2020 American Physical Society.",
year = "2020",
month = aug,
day = "1",
doi = "10.1103/PhysRevB.102.060408",
language = "English",
volume = "102",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "6",
}