Anomalous hall effect in HoB12.

Authors :: Sluchanko, N. E.
Sluchanko, D. N.
Glushkov, V. V.
Demishev, S. V.
Samarin, N. A.
Shitsevalova, N. Yu.
Source :: JETP Letters; Jan2008, Vol. 86 Issue 9, p604-607, 4p, 3 Graphs
Publication Year :: 2008
Abstract: Within a wide temperature range of 1.8–300 K, the Hall effect in holmium dodecaboride is investigated. The measurements of the angular dependences of the Hall resistance ρ<subscript>H</subscript>(φ, T, H) for HoB<subscript>12</subscript> performed in a high magnetic field up to 80 kOe at helium and intermediate temperatures made it possible to separate the normal and anomalous contributions to the Hall effect. Analysis of the anomalous component behavior in the paramagnetic and Néel phases suggests the appearance of the 5 d-state magnetic polarization (the spin polaron effect) and makes it possible to compare the revealed features of the Hall coefficient R<subscript>H</subscript>( T, H) with the H-T magnetic phase diagram of HoB<subscript>12</subscript>. [ABSTRACT FROM AUTHOR]