Show simple item record

dc.creatorGoruganti, V.
dc.creatorRathnayaka, K. D. D.
dc.creatorRoss, Joseph H. Jr.
dc.creatorOner, Y.
dc.creatorLue, C. S.
dc.creatorKuo, Y. K.
dc.date.accessioned2016-01-12T00:24:53Z
dc.date.available2016-01-12T00:24:53Z
dc.date.issued2008
dc.identifier.citationJ. Appl. Phys. 103, 073919 (2008)en
dc.identifier.urihttp://hdl.handle.net/1969.1/156020
dc.description.abstractElectrical resistivity,heat capacity, and dc magnetization measurements were performed on the AlB2-type intermetallics NdCuGe and LaCuGe over the temperature range of 2–300K. NdCuGe exhibits magnetization attributable to Nd3+ moments, with an antiferromagnetic (AF) transition at 3.1K. Magnetization, heat capacity, and resistivitymeasurements were used to determine the crystalline electric field (CEF) splitting of the Nd3+ magnetic sublevels. The ground state is a doublet composed of ±5∕2 levels and the AF state is built from this magnetic doublet, with a reduction in the average sublattice magnetization attributable to site disorder among Cu–Ge sites. Low-temperature electrical transport is dominated by spin-disorder scattering among CEF-split levels and a small T2 spin fluctuation term. The latter is nearly two orders of magnitude smaller than previously observed in isostructural CeCuGe, for which the anomalous observed thermopower exponent was attributed to extended spin fluctuations above the magnetic transition. By contrast, simple-metallic behavior provides a good fit to the NdCuGe thermopower, thus, the CeCuGe results can be attributed to resonant scattering due to partial hybridization of the localized orbitals.en
dc.language.isoen_US
dc.publisherAIP Publishing
dc.titleTransport and magnetic properties of NdCuGe compounden
dc.typeArticleen
local.departmentPhysics and Astronomyen
dc.identifier.doi10.1063/1.2904856


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record