An inverse behavior (dia-paramagnetic transition with increasing x) is observed for TaCx, despite its having the same crystal structure as HfCx.
ɐn ɪnvˈɜːs bᵻhˈeɪvjɚ dˈaɪəpˌæɹəmɐɡnˈɛɾɪk tɹænsˈɪʃən wɪð ɪŋkɹˈiːsɪŋ ˈɛks ɪz əbzˈɜːvd fɔːɹ tˈɑː sˌiːˈɛks, dᵻspˈaɪt ɪts hˌævɪŋ ðə sˈeɪm kɹˈɪstəl stɹˈʌktʃɚɹ æz ˌeɪtʃˈɛf sˌiːˈɛks.