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 TN 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. TN increases with increasing pressure, however a hump structure of electrical resistivity below TN becomes small. Hence, some change for the magnetic ordered state is expected to occur in higher pressure region.