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19 April 2024 |
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Magnetic phase diagram of CePt3B1-xSix | | Daniela Rauch
; Stefan Süllow
; Matthias Bleckmann
; Bastian Klemke
; Klaus Kiefer
; Moo Sung Kim
; Meigan C. Aronson
; Ernst Bauer
; | | Date: |
24 Oct 2012 | | Abstract: | We present a study of the main bulk properties (susceptibility,
magnetization, resistivity and specific heat) of CePt3B1-xSix, an alloying
system that crystallizes in a noncentrosymmetric lattice, and derive the
magnetic phase diagram. The materials at the end point of the alloying series
have previously been studied, with CePt3B established as a material with two
different magnetic phases at low temperatures (antiferromagnetic below TN = 7.8
K, weakly ferromagnetic below TC ~ 5 K), while CePt3Si is a heavy fermion
superconductor (Tc = 0.75 K) coexisting with antiferromagnetism (TN = 2.2 K).
From our experiments we conclude that the magnetic phase diagram is divided
into two regions. In the region of low Si content (up to x ~ 0.7) the material
properties resemble those of CePt3B. Upon increasing the Si concentration
further the magnetic ground state continuously transforms into that of CePt3Si.
In essence, we argue that CePt$_3$B can be understood as a low pressure variant
of CePt3Si. | | Source: | arXiv, 1210.6489 | | Services: | Forum | Review | PDF | Favorites | |
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