TY - JOUR
T1 - Magnetic and electronic properties of NpRhGe
AU - Colineau, E.
AU - Sanchez, J. P.
AU - Wastin, F.
AU - Javorský, P.
AU - Riffaud, E.
AU - Homma, Y.
AU - Boulet, P.
AU - Rebizant, J.
PY - 2008/6/25
Y1 - 2008/6/25
N2 - NpRhGe is the neptunium homologue of the ferromagnetic superconductor URhGe, and has been investigated using magnetization, electrical resistivity, specific heat and 237Np Mössbauer spectroscopy. NpRhGe exhibits antiferromagnetic ordering below TN≈21 K with an ordered magnetic moment μNp = 1.14 μB. The value of the isomer shift suggests a Np3+ charge state (configuration 5f4) and possible delocalization of the 5f electrons. The Brillouin-like (J = 1/2) thermal variation of the magnetic hyperfine field indicates that a doublet ground state of the neptunium ion may occur in this compound. The specific heat indicates a high Sommerfeld coefficient value for NpRhGe (195 mJ mol -1 K-2).
AB - NpRhGe is the neptunium homologue of the ferromagnetic superconductor URhGe, and has been investigated using magnetization, electrical resistivity, specific heat and 237Np Mössbauer spectroscopy. NpRhGe exhibits antiferromagnetic ordering below TN≈21 K with an ordered magnetic moment μNp = 1.14 μB. The value of the isomer shift suggests a Np3+ charge state (configuration 5f4) and possible delocalization of the 5f electrons. The Brillouin-like (J = 1/2) thermal variation of the magnetic hyperfine field indicates that a doublet ground state of the neptunium ion may occur in this compound. The specific heat indicates a high Sommerfeld coefficient value for NpRhGe (195 mJ mol -1 K-2).
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U2 - 10.1088/0953-8984/20/25/255234
DO - 10.1088/0953-8984/20/25/255234
M3 - Article
AN - SCOPUS:44649094002
SN - 0953-8984
VL - 20
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 25
M1 - 255234
ER -