TY - JOUR
T1 - Non-Fermi-liquid behavior on an iron-based itinerant electron magnet Fe3Mo3N
AU - Waki, Takeshi
AU - Terazawa, Shinsuke
AU - Tabata, Yoshikazu
AU - Oba, Fumiyasu
AU - Michioka, Chishiro
AU - Yoshimura, Kazuyoshi
AU - Ikeda, Shugo
AU - Kobayashi, Hisao
AU - Ohoyama, Kenji
AU - Nakamura, Hiroyuki
PY - 2010/4
Y1 - 2010/4
N2 - We report magnetic, calorimetric, and transport properties of an iron-based itinerant electron magnet Fe3Mo3N. Magnetic susceptibility shows a Curie-Weiss behavior at high temperatures and takes a broad maximum at around 75 K. The absence of magnetic long range order was confirmed by 57Fe-Mos̈sbauer and neutron diffraction measurements. C=T shows a divergent behavior following -log T at low temperatures and reaches 128 mJ/(f.u.molK2) at 0.5 K. The deviation from the T2s power law of resistivity also suggests a non-Fermi-liquid (NFL) behavior. The observed C/T and X are enhanced compared with the values estimated from the theoretical density of states, suggesting a strong magnetic enhancement. The NFL behaviors indicate that Fe 3Mo3N is one of the ideal systems located in the vicinity of the ferromagnetic quantum critical point.
AB - We report magnetic, calorimetric, and transport properties of an iron-based itinerant electron magnet Fe3Mo3N. Magnetic susceptibility shows a Curie-Weiss behavior at high temperatures and takes a broad maximum at around 75 K. The absence of magnetic long range order was confirmed by 57Fe-Mos̈sbauer and neutron diffraction measurements. C=T shows a divergent behavior following -log T at low temperatures and reaches 128 mJ/(f.u.molK2) at 0.5 K. The deviation from the T2s power law of resistivity also suggests a non-Fermi-liquid (NFL) behavior. The observed C/T and X are enhanced compared with the values estimated from the theoretical density of states, suggesting a strong magnetic enhancement. The NFL behaviors indicate that Fe 3Mo3N is one of the ideal systems located in the vicinity of the ferromagnetic quantum critical point.
KW - Fe3Mo3N
KW - Ferromagnetic quantum critical point
KW - Non-Fermi liquid
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U2 - 10.1143/JPSJ.79.043701
DO - 10.1143/JPSJ.79.043701
M3 - Article
AN - SCOPUS:77951435722
VL - 79
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 4
M1 - 043701
ER -