@article{817a4dc96e14417e8f099e0830f3025b,
title = "Pressure-induced tetragonal-orthorhombic phase transitions in CeRuPO",
abstract = "CeRuPO, a ferromagnetic Kondo lattice, undergoes two novel pressure-induced structural phase transitions. CeRuPO undergoes an isostructural transition to a collapsed tetragonal structure near 7.5 GPa. Since pressure suppresses the initial ferromagnetic ordering of Ce3+, our observation suggests a quantum critical point for CeRuPO near this pressure. The collapsed tetragonal phase transforms into an orthorhombic Cmma structure. This phase is isostructural with the low temperature phase of LaFeAsO, which is superconducting under high pressure. Since CeRuPO exhibits a similar relationship between the two phases of LaFeAsO, the collapsed tetragonal and orthorhombic phases of CeRuPO may adopt a novel magnetic ground state.",
author = "S. Hirai and Y. Kamihara and A. Wakatsuki and M. Matoba and Mao, {W. L.}",
note = "Funding Information: This research is funded by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences (BES). S.H. and W.L.M. are supported by the U.S. Department of Energy (DOE), Office of Basic Energy Sciences (BES), Division of Materials Sciences and Engineering, under Contact No. DE-AC02-76SF00515. XRD experiments were performed at HPCAT, APS, ANL. HPCAT is supported by CIW, CDAC, UNLV, and LLNL through funding from DOE-NNSA, DOE-BES, and NSF. APS is supported by DOE-BES, under Contract No. DE-AC02-06CH11357. We thank D. Ikuta and W. Yang for help with the XRD experiments.",
year = "2013",
month = feb,
day = "4",
doi = "10.1063/1.4791690",
language = "English",
volume = "102",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "5",
}