Transport phenomena in ultraclean 111 oriented SrVO₃ thin films

SrVO₃ has proven to be an ideal testbed for studying the effects of strong electron correlation due to its simple cubic structure and single d-orbital electron. Ultraclean SrVO₃ films with residual ratios exceeding 200 have recently been demonstrated using self-regulated growth by hybrid MBE, allowing accurate interpretation of the intrinsic features of electron correlation [1]. In addition to allowing high quality growth, we demonstrate that SrVO₃ can also be grown epitaxially on (111) oriented LSAT substrates. We compare the temperature dependent electronic transport properties of (111) and (001) oriented SrVO₃ thin films. In addition, we discuss the formation of a low temperature Fermi liquid like phase in each case.

[1] M. Brahlek, et al Appl. Phys. Lett. 107, 143108 (2015)