Magnetic properties of Yb(Rh0.42Co0.58)2Si2. Issue 3 (18th February 2013)

• Record Type: Journal Article
• Authors: Hannaske, Ariane; Stockert, Oliver; Klingner, Christoph; Krellner, Cornelius; Matas, Slavomir; Pedrero, Luis; Brando, Manuel; Geibel, Christoph; Steglich, Frank
• Is Part Of: Physica status solidi. Volume 250:Issue 3(2013:Mar.)
• Page Start: 476
• Page End: 481
• Publication Date: 2013-02-18
• Subjects: Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.201200932
• Languages: English
• ISSNs: 0370-1972

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>In this paper, we present a comprehensive study of heat capacity, resistivity, neutron diffraction and magnetization measurements on Yb(Rh_0.42Co_0.58)₂Si₂. Heat capacity and resistivity measurements revealed one phase transition at <italic>T</italic>_m ≈ 820 mK into the magnetically ordered phase, but in neutron diffraction experiments the magnetic intensity at the commensurate position <tex-math notation="tex"><![CDATA[$\tau = (\matrix{ {0.25 } & {0.75 } & {0} \cr } )$]]></tex-math><inline-graphic xlink:href="ark:/27927/pgg1v77r9gv" mimetype="image" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /> vanished already at a lower <italic>T</italic>_L ≈ 700 mK. From magnetization measurements we could derive the existence of two magnetic phases, an antiferromagnetic phase below <italic>T</italic>_L ≈ 700 mK and an intermediate phase in the temperature range <tex-math notation="tex"><![CDATA[$T_{{\rm L}} < T < T_{{\rm m}} $]]></tex-math><inline-graphic xlink:href="ark:/27927/pgg1v77r9c6" mimetype="image" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" />, which shows surprisingly ferromagnetic properties when applying magnetic fields along the [001] direction.</p> </abstract>