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Magnetic properties of Yb(Rh 0.42 Co 0.58 ) 2 Si 2
Author(s) -
Hannaske Ariane,
Stockert Oliver,
Klingner Christoph,
Krellner Cornelius,
Matas Slavomir,
Pedrero Luis,
Brando Manuel,
Geibel Christoph,
Steglich Frank
Publication year - 2013
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201200932
Subject(s) - magnetization , antiferromagnetism , electrical resistivity and conductivity , neutron diffraction , condensed matter physics , ferromagnetism , materials science , phase (matter) , heat capacity , atmospheric temperature range , diffraction , magnetic field , chemistry , physics , thermodynamics , optics , organic chemistry , quantum mechanics
In this paper, we present a comprehensive study of heat capacity, resistivity, neutron diffraction and magnetization measurements on Yb(Rh 0.42 Co 0.58 ) 2 Si 2 . Heat capacity and resistivity measurements revealed one phase transition at T m ≈ 820 mK into the magnetically ordered phase, but in neutron diffraction experiments the magnetic intensity at the commensurate position $\tau = (\matrix{ {0.25 } & {0.75 } & {0} \cr } )$ vanished already at a lower T L ≈ 700 mK. From magnetization measurements we could derive the existence of two magnetic phases, an antiferromagnetic phase below T L ≈ 700 mK and an intermediate phase in the temperature range $T_{{\rm L}} < T < T_{{\rm m}} $ , which shows surprisingly ferromagnetic properties when applying magnetic fields along the [001] direction.