TY - JOUR
T1 - Effects of chemical disorder in the itinerant antiferromagnet Ti1-xVxAu
AU - Huang, C. L.
AU - Santiago, J. M.
AU - Svanidze, E.
AU - Besara, T.
AU - Siegrist, T.
AU - Morosan, E.
N1 - Funding Information:
The work at Rice University was funded by the NSF DMR-1506704 (JMS, ES, CLH and EM). The use of the EPMA facility at the Department of Earth, Environmental and Planetary Sciences, Rice University, Houston, TX, is kindly acknowledged. TB and TS are supported by award DE-SC0008832 from the Materials Sciences and Engineering Division in the US. Department of Energy’s Office of Basic Energy Sciencesand the National High Magnetic Field Laboratory through the NSF Cooperative Agreement No. DMR-1157490 and the State of Florida.
Publisher Copyright:
© 2018 IOP Publishing Ltd.
PY - 2018/8/17
Y1 - 2018/8/17
N2 - The fragile nature of itinerant magnetism can be exploited using non-thermal parameters to study quantum criticality. The recently discovered quantum critical point (QCP) in the Sc-doped (hole-like doping) itinerant antiferromagnet TiAu (Ti1-xScxAu) raised questions about the effects of the crystal and electronic structures on the overall magnetic behavior. In this study, doping with V (electron-like doping) in Ti1-xVxAu introduces chemical disorder which suppresses antiferromagnetic order from TN = 36 K for x = 0 down to 10 K for x = 0.15, whereupon a solubility limit is reached. Signatures of non-Fermi-liquid behavior are observed in transport and specific heat measurements similar to Ti1-xScxAu, even though Ti1-xVxAu is far from a QCP for the accessible compositions x ≤ 0.15.
AB - The fragile nature of itinerant magnetism can be exploited using non-thermal parameters to study quantum criticality. The recently discovered quantum critical point (QCP) in the Sc-doped (hole-like doping) itinerant antiferromagnet TiAu (Ti1-xScxAu) raised questions about the effects of the crystal and electronic structures on the overall magnetic behavior. In this study, doping with V (electron-like doping) in Ti1-xVxAu introduces chemical disorder which suppresses antiferromagnetic order from TN = 36 K for x = 0 down to 10 K for x = 0.15, whereupon a solubility limit is reached. Signatures of non-Fermi-liquid behavior are observed in transport and specific heat measurements similar to Ti1-xScxAu, even though Ti1-xVxAu is far from a QCP for the accessible compositions x ≤ 0.15.
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U2 - 10.1088/1361-648X/aad832
DO - 10.1088/1361-648X/aad832
M3 - Article
C2 - 30079890
AN - SCOPUS:85052738080
VL - 30
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 36
M1 - 365602
ER -