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Anisotropic character of the metal-to-metal transition in Pr4Ni$ 3$O$ {10}$ by Huangfu, Shangxiong; Jakub, Gawryluk Dariusz; Zhang, Xiaofu; Blacque, Olivier; Puphal, Pascal; Pomjakushina, Ekaterina; von Rohr, Fabian O.; Schilling, Andreas is a scholarly article available to read on EtoBox.

What is Anisotropic character of the metal-to-metal transition in Pr4Ni$ 3$O$ {10}$ about?

As a member of the Ruddlesden-Popper Ln$_{n+1}$Ni$_n$O$_{3n+1}$ series rare-earth-nickelates, the Pr4Ni$_3$O$_{10}$ consists of infinite quasi-two-dimensional perovskite-like Ni-O based layers. Although a metal-to-metal phase transition at Tpt = 157 K has been revealed by previous studies, a comprehensive study of physical properties associated with this transition has not yet been performed. We have grown single crystals of Pr4Ni3O10 at high oxygen pressure, and report on the physical properties around that phase transition, such as heat-capacity, electric-transport and magnetization. We observe a distinctly anisotropic behavior between in-plane and out-of-plane properties: a metal-to-metal transition at Tpt within the a-b plane, and a metal-to-insulator-like transition along the c-axis with decreasing temperature. Moreover, an anisotropic and anomalous negative magneto-resistance is observed at Tpt that we attribute to a slight suppression of the first-order transition with magnetic field. The magnetic-susceptibility can be well described by a Curie-Weiss law, with different Curie-constants and Pauli-spin susceptibilities between the high-temperature and the low-temperature phase

Author

Huangfu, Shangxiong; Jakub, Gawryluk Dariusz; Zhang, Xiaofu; Blacque, Olivier; Puphal, Pascal; Pomjakushina, Ekaterina; von Rohr, Fabian O.; Schilling, Andreas

Published

2020

Language

EN