Low threading dislocation density GaAs growth on on-axis GaP/Si (001)

[1 ]Institute for Energy Efficiency, University of California Santa Barbara, Santa Barbara, California 93106, USA

[2 ]Materials Department, University of California Santa Barbara, Santa Barbara, California 93106, USA

[3 ]Department of Electrical and Computer Engineering, University of California Santa Barbara, Santa Barbara, California 93106, USA