Electrical Resistivity Measurements of Antiferromagnetic Compound Ce3TiSb5 under Pressure

We performed electrical resistivity measurements of Ce3TiSb5 under pressure. From the pressure dependences of antiferromagnetic ordering temperature T N and lower anomalous temperature T*, temperature–pressure phase diagram of Ce3TiSb5 up to 2.3 GPa has been constructed. T* rapidly decreases with increasing pressure and disappears around 1 GPa. T N increases with increasing pressure, however a hump structure of electrical resistivity below T N becomes small. Hence, some change for the magnetic ordered state is expected to occur in higher pressure region.