The growth and characterization of CePtIn4, stabilized by 10% Zn substitution for In, is reported. The new material is orthorhombic, space group Cmcm (No. 63), with lattice parameters a = 4.51751(4) {\AA}, b = 16.7570(2) {\AA}, and c = 7.36682(8) {\AA}, and the refined crystal composition has 10% of Zn substituted for In, i.e. the crystals are CePt(In3.6Zn0.1)4. Crystals were grown using a self-flux method: only growths containing Zn yielded CePtIn4 crystals, while Ce3Pt4In13 crystals formed when Zn was not present. Anisotropic temperature-dependent magnetic susceptibilities for single crystals show that Zn-stabilized CePtIn4 orders magnetically at ~1.9 K. High-temperature Curie-Weiss fits indicate an effective moment of ~2.30 muB/ Ce and a directionally averaged Weiss-temperature of approximately - 9 K. Specific heat data shows a peak consistent with the ordering temperature seen in the magnetic susceptibility data. Zn-stabilized CePtIn4 is metallic and displays no superconducting transition down to 0.14 K.
@article{arxiv.1705.04634,
title = {Growth, Crystal Structure and Magnetic Characterization of Zn-Stabilized CePtIn4},
author = {Elizabeth M. Carnicom and Tomasz Klimczuk and Fabian von Rohr and Michal J. Winiarski and Tai Kong and Karoline Stolze and Weiwei Xie and Satya K. Kushwaha and Robert J. Cava},
journal= {arXiv preprint arXiv:1705.04634},
year = {2017}
}