Electron-magnon interaction in RNiBC (R = Er, Ho, Dy, Tb, and Gd) series of compounds based on magnetoresistance measurements

Authors
Fontes, MB Trochez, JC Giordanengo, B Bud'ko, SL Sanchez, DR Baggio-Saitovitch, EM Continentino, MA
Citation
Mb. Fontes et al., Electron-magnon interaction in RNiBC (R = Er, Ho, Dy, Tb, and Gd) series of compounds based on magnetoresistance measurements, PHYS REV B, 60(9), 1999, pp. 6781-6789
Citations number
24
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
9
Year of publication
1999
Pages
6781 - 6789
Database
ISI
SICI code
0163-1829(19990901)60:9<6781:EIIR(=>2.0.ZU;2-D
Abstract
We present a study of the transport and magnetic properties of a series of RNiBC compounds (R=Er, Ho, Dy, Tb, and Gd). All the materials investigated have long range magnetic order at sufficiently low temperatures. Magnetores istance measurements are presented for a large range of temperatures (T) an d magnetic fields (H). We show that below the critical temperature, the tem perature dependence of the resistivity is determined by electron scattering due to the elementary excitations (spin waves) of the ordered magnetic pha se and the values of the gap in the magnon spectra were derived. Finally we discuss the HXT phase diagram of these materials. [S0163-1829(99)05133-4].