title: Magnetic-field-tuned charge density wave in SmNiC2and NdNiC2.
abstract: We report magnetic field tuned competition between magnetic order and charge density wave (CDW) states in SmNiC2and NdNiC2polycrystals. The destruction of CDW can be observed not only in SmNiC2below ferromagnetic (FM) but also in NdNiC2below antiferromagnetic (AFM) transition temperature. Moreover, the CDW states near magnetic transition temperatures can be tuned by the magnetic field for both compounds. Magnetic-field induced FM state in NdNiC2is more effective in weakening the CDW than the AFM state at temperatures near Neel temperature TNbut both ordering states have the same effect on CDW below TN. The interplay between magnetic and CDW states in SmNiC2and NdNiC2may be different, suggesting that these materials are good models to study correlations between magnetic and CDW wave order.
authors.forename: Hechang
authors.initials: H
authors.lastname: Lei
authors.forename: Kefeng
authors.initials: K
authors.lastname: Wang
authors.forename: C
authors.initials: C
authors.lastname: Petrovic