New J. Phys. 17, 105001 (2015)
Phys. Rev. B 92, 125105 (2015)
Phys. Rev. B 92, 115155 (2015)
Phys. Rev. A 92, 053834 (2015)
New J. Phys. 17, 082001 (2015)
Phys. Rev. B 92, 245111 (2015)
PHYSICAL REVIEW B, Volume: 92, Issue: 18, Article Number: 184420 (2015)