M.-H. Jung
Los Alamos National Laboratory
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Publication
Featured researches published by M.-H. Jung.
Physical Review B | 2002
M.-H. Jung; A. Lacerda; Toshiro Takabatake
We report results of studies on the magnetic and transport properties of CeNiBi 2 . The magnetic susceptibility exhibits a sharp peak at T N =6 K, indicating an antiferromagnetic phase transition. This antiferromagnetic order below T N is confirmed by magnetization measurement, which displays a metamagneticlike transition at H m =5T. Both low-temperature susceptibility and high-field magnetization are suggestive of strong crystalline-electric-field effect in CeNiBi 2 . The electrical resistivity shows the presence of Kondo and crystal-field effects with a sharp drop below T N due to the antiferromagnetic ordering. This sharp drop below T N in the electrical resistivity is suppressed slightly to higher temperatures by an applied magnetic field to 18 T. With increasing magnetic field, the slope of magnetoresistance changes from positive to negative, being indicative of the transition to a field-induced ferromagnetic state.
Physical Review B | 2002
M.-H. Jung; N. Harrison; A. Lacerda; H. Nakotte; P. G. Pagliuso; J. L. Sarrao; J. D. Thompson
We report measurements on single crystals of orthorhombic
Physical Review B | 2003
M.-H. Jung; A. M. Alsmadi; H. C. Kim; Yunkyu Bang; K. H. Ahn; Kazunori Umeo; A. Lacerda; H. Nakotte; H.C. Ri; Toshiro Takabatake
{\mathrm{CeNiGe}}_{2},
Philosophical Magazine Part B | 2002
M.-H. Jung; I. H. Inoue; H. Nakotte; A. Lacerda
which is found to exhibit highly anisotropic magnetic and transport properties. The magnetization ratio
Archive | 2001
A. M. Alsmadi; S. Chang; M.-H. Jung; A. Lacerda; E.H. Brück; K. Prokeš; V. Sechovsky; J. Kamarád; M. Mihalik; H. Nakotte
M(H\ensuremath{\parallel}b)/M(H\ensuremath{\perp}b)
Philosophical Magazine Part B | 2002
M.-H. Jung; I. H. Inoue; H. Nakotte; A. Lacerda
at 2 K is observed to be about 18 at 4 T and the electrical resistivity ratio
Journal of Magnetism and Magnetic Materials | 2004
A. M. Alsmadi; M.-H. Jung; A. Lacerda; P. Svoboda; H. Nakotte
{\ensuremath{\rho}}_{\ensuremath{\parallel}b}/{\ensuremath{\rho}}_{\ensuremath{\perp}b}
Journal of Magnetism and Magnetic Materials | 2004
A. M. Alsmadi; M.-H. Jung; A. Lacerda; P. Svoboda; H. Nakotte
is about 70 at room temperature. It is confirmed that
Journal of Physical Chemistry B | 2003
H. Nakotte; S. Chang; A. M. Alsmadi; M.-H. Jung; A. Lacerda; Karel Prokes; E.H. Brück; M. Mihalik
{\mathrm{CeNiGe}}_{2}
Acta Physica Polonica B | 2003
H. Nakotte; S. H. Chang; A. M. Alsmadi; M.-H. Jung; A. Lacerda; K. Prokes; E.H. Brück; M. Mihalik
undergoes a two-step antiferromagnetic transition at 4 and 3 K, as reported for polycrystalline samples. The application of magnetic field along the b axis (the easy magnetization axis) stabilizes a ferromagnetic correlation between the Ce ions and enhances the hopping of carriers. This results in large negative magnetoresistance along the b axis.
