In the spin-valve measurements, changes in nonlocal voltage VNL are observed when the magnetizations of the injector and detector FM contacts are changed to either parallel or antiparallel configuration by an in-plane external magnetic field. The measurements were performed in a flow cryostat and in a physical property measurement system at temperatures of 2 to 300 K and variable magnetic field. In the experiments, a bias current in the range of 75 to 500 μA was applied using a Keithley 6221 current source, and the nonlocal voltage was detected by a Keithley 2182A nanovoltmeter; the gate voltage was applied using a Keithley 2612 source meter.