TY - JOUR
T1 - Appearance of a field-induced phase and a quantum critical line in pressurized Yb2Pd2Sn
AU - Kabeya, N.
AU - Komuro, H.
AU - Kimura, N.
AU - Ochiai, A.
N1 - Funding Information:
We thank M. Kikuchi, H. Moriyama, and N. Fukiage for technical support. This paper was partially supported by JSPS KAKENHI Grant No. JP24840003.
Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/11/1
Y1 - 2021/11/1
N2 - We report three-dimensional pressure-field-temperature phase diagrams of Yb2Pd2Sn and Yb2(Pd0.9Ni0.1)2Sn that are constructed from electrical resistivity measurements. In Yb2Pd2Sn, which is known to be a pressure-induced antiferromagnet, we found an unexpected magnetic-field-induced phase at a higher field than the antiferromagnetic (AFM) phase under pressure. A non-Fermi-liquid (NFL) behavior characterized by T3/2 dependence of the resistivity is observed along the AFM phase boundary, indicating the existence of the quantum critical line. As the AFM and field-induced phases approach each other with increasing pressure, the NFL behavior is more pronounced. Yb2(Pd0.9Ni0.1)2Sn is known to be an antiferromagnet at ambient pressure. We also found a field-induced phase under pressure. Although the temperature-pressure phase diagram of Yb2(Pd0.9Ni0.1)2Sn corresponds to that of Yb2Pd2Sn shifted by 1.7 GPa, the field-induced phase does not separate from the AFM phase. Furthermore, the NFL behavior is less pronounced than Yb2Pd2Sn. The Ni substitution for Pd not only acts as a chemical pressure but also produces other effects for the magnetism and its criticality.
AB - We report three-dimensional pressure-field-temperature phase diagrams of Yb2Pd2Sn and Yb2(Pd0.9Ni0.1)2Sn that are constructed from electrical resistivity measurements. In Yb2Pd2Sn, which is known to be a pressure-induced antiferromagnet, we found an unexpected magnetic-field-induced phase at a higher field than the antiferromagnetic (AFM) phase under pressure. A non-Fermi-liquid (NFL) behavior characterized by T3/2 dependence of the resistivity is observed along the AFM phase boundary, indicating the existence of the quantum critical line. As the AFM and field-induced phases approach each other with increasing pressure, the NFL behavior is more pronounced. Yb2(Pd0.9Ni0.1)2Sn is known to be an antiferromagnet at ambient pressure. We also found a field-induced phase under pressure. Although the temperature-pressure phase diagram of Yb2(Pd0.9Ni0.1)2Sn corresponds to that of Yb2Pd2Sn shifted by 1.7 GPa, the field-induced phase does not separate from the AFM phase. Furthermore, the NFL behavior is less pronounced than Yb2Pd2Sn. The Ni substitution for Pd not only acts as a chemical pressure but also produces other effects for the magnetism and its criticality.
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U2 - 10.1103/PhysRevB.104.184405
DO - 10.1103/PhysRevB.104.184405
M3 - Article
AN - SCOPUS:85119098113
VL - 104
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 18
M1 - 184405
ER -