a liquid jet head comprises , an electrothermal transducer having a heat - generating resistor formed using an amorphous alloy containing at least one selected from the group consisting of ti , zn , hf , nb , ta and w as well as fe , ni and cr , and a pair of electrodes connected electrically to said heat - generating resistor , a support for supporting said electrothermal transducer and a liquid path formed on said support corresponding to the heat generating portion of said electrothermal transducer formed between said pair of electrodes and communicated to a discharge opening for discharging ink .