1.               R. K. Kawakami, Ernesto J. Escorcia-Aparicio, and Z. Q. Qiu,  "Magnetic coupling in Co/face-cetered-cubic Fe/Co sandwiches",  J. Appl. Phys. 79, 4532 (1996).

2.               Ernesto J. Escorcia-Aparicio, R. K. Kawakami, and Z. Q. Qiu,  "Structural and magnetic properties of face-cetered-cubic Fe films grown on Co(100)",  J. Appl. Phys. 79, 4964 (1996).

3.               R. K. Kawakami, Ernesto J. Escorcia-Aparicio, and Z. Q. Qiu,  "Investigation of face-cetered-cubic Fe thin films using wedged samples",  J. of Vac. Sci. Tech. B 14, 3164 (1996).

4.               Ernesto J. Escorcia-Aparicio, R. K. Kawakami, and Z. Q. Qiu,  "fcc Fe films grown on a ferromagnetic fcc Co(100) substrate",  Phys. Rev. B 54, 4155 (1996).

5.               R. K. Kawakami, Ernesto J. Escorcia-Aparicio, and Z. Q. Qiu,  "Symmetry-Induced Magnetic Anisotropy in Fe/Ag(100) Systems",  Phys. Rev. Lett. 77, 2570 (1996).

6.               Ernesto J. Escorcia-Aparicio, Hyuk J. Choi, R. K. Kawakami, and Z. Q. Qiu,  "Role of film roughness and interdiffusion in the formation of nonferromagnetic fcc Fe in the Fe/Co(100) system",  J. Appl. Phys. 81, 4714  (1997).

7.               R. K. Kawakami, E. Rotenberg, Ernesto J. Escorcia-Aparicio, Hyuk J. Choi, T. R. Cummins, J. Tobin, N. V. Smith, and Z. Q. Qiu,  "Observation of quantum well interference in magnetic nanostructures by photoemission",  Phys. Rev. Lett. 80, 1754 (1998).

8.               Hyuk J. Choi, Z. Q. Qiu, J. Pearson, S. J. Jiang, D. Li, and S. D. Bader,  "Magnetic anisotropy of epitaxial Fe films grown on curved W(001) with a graded step density",  Phys. Rev. B 57, 12713 (1998).

9.               Ernesto J. Escorcia-Aparicio, Hyuk J. Choi, R. K. Kawakami, and Z. Q. Qiu,  "Magnetic phases of the fcc Fe films in the 5-11ML thickness range",  Phys. Rev. B 58, 93 (1998).

10.            Ernesto J. Escorcia-Aparicio, Hyuk J. Choi, W. L. Ling, R. K. Kawakami, and Z. Q. Qiu,  "The Effect of interfacial steps on the ferromagnetic/antiferromagnetic interface of thin Fe films on Cr(001)",  IEEE Transactions on Magnetics, Vol. 34, 1219 (1998).

11.            R. K. Kawakami, M. O. Bowen, Hyuk J, Choi, Ernesto J. Escorcia-Aparicio, and Z. Q. Qiu,  "Effect of atomic steps on the magnetic anisotropy in vicinal Co/Cu(001)",  Phys. Rev. B 58, 5924 (1998).

12.            Ernesto J. Escorcia-Aparicio, Hyuk J. Choi, W. L. Ling, R. K. Kawakami, and Z. Q. Qiu,  "90o Magnetization Switching in Thin Fe Films Grown on Stepped Cr(001)",  Phys. Rev. Lett. 81, 2144 (1998).

13.            Z. Q. Qiu and S. D. Bader,  "Kerr Effect and Surface Magnetism", Chapter 1 (p.1-39) of the book of "NonlinearOptics in Metals" edited by Karl-Heinz Bennemann, Clarendon Press, Oxford, 1998

14.            Hyuk J. Choi, R. K. Kawakami, Ernesto J. Escorcia-Aparicio, and Z. Q. Qiu, J. Pearson, J. S. Jiang, Dongqi Li, and S. D. Bader,  "Curie temperature enhancement and induced Pd magnetic moments for ultrathin Fe films grown on stepped Pd(001)",  Phys. Rev. Lett. 82, 1947 (1999).

15.            R. K. Kawakami, E. Rotenberg, Hyuk J. Choi, Ernesto J. Escorcia-Aparicio, M. O. Bowen, J. H. Wolfe, E. Aronholtz, Z. Zhang, N. V. Smith, and Z. Q. Qiu,  "Quantum well states in copper thin films",  Nature 398, 132 (1999).

16.            R. K. Kawakami, Martin O. Bowen, Hyuk J. Choi, Ernesto J. Escorcia-Aparicio, and Z.Q. Qiu,  "Step-induced magnetic anisotropy in Co/stepped Cu(001) as a function of step-density",  J. Appl. Phys. 85, 4955 (1999).

17.            Hyuk J. Choi, R.K. Kawakami, Ernesto J. Escorcia-Aparicio, and Z.Q. Qiu, J. Pearson, J. S. Jiang, Dongqi Li, R. Osgood, and S. D. Bader,  "Magnetic properties of ultrathin Fe films grown on stepped W(001) and Pd(001) substrates",  J. Appl. Phys. 85, 4958 (1999).

18.            Ernesto J. Escorcia-Aparicio, Hyuk J. Choi, J. H. Wolfe, W. L. Ling, R. K. Kawakami, and Z. Q. Qiu,  "Modification of the Magnetic Properties of Fe/Cr(001) by Controlling the Compensation of the Vicinal Cr(001) Surface",  J. Appl. Phys. 85, 4961 (1999).

19.            Ernesto J. Escorcia-Aparicio, J. H. Wolfe, Hyuk J. Choi, W. L. Ling, R. K. Kawakami, and Z. Q. Qiu,  "Magnetic phases of thin Fe films grown on stepped Cr(001)",  Phys. Rev. B 59, 11892 (1999).

20.            R. K. Kawakami, E. Rotenberg, Ernesto J. Escorcia-Aparicio,  Hyuk J. Choi, J. H. Wolfe, N. V. Smith, and Z. Q. Qiu,  "Determination of the magnetic coupling in Co/Cu/Co(100) system in terms of the momentum resolved quantum well states",  Phys. Rev. Lett. 82, 4098 (1999).

21.            Z. Q. Qiu and S. D. Bader, "Symmetry at magnetic surfaces and interfaces", Surf. Sci. 438, 319 (1999).

22.            Z. Q. Qiu and S. D. Bader, "Surface magneto-optic Kerr effect (SMOKE)", J. of Mag. Mag. Mat. 200, 664 (1999).

23.            Z. D. Zhang, Hyuk. J. Choi, R. K. Kawakami, Enresto Escorcia-Apericio, Martin Bowen, Jason Wolfe, E. Rotenberg, N.V. Smith, and Z. Q. Qiu  "Oscillatory coupling between Co films across Cu/Ni30Cu70/Cu(100) double quantum wells", Phys. Rev. B 61, 76 (2000).

24.            U. Bovensiepen, Hyuk J. Choi, and Z. Q. Qiu, "Step-nduced magnetic anisotropy in vicinal Ni/Cu(001) and its effect on the spin reorientation transition",  Phys. Rev. B 61, 3235 (2000).

25.            W. L. Ling, O. Takeuch, D.F. Ogletree, Z.Q. Qiu, M. Salmeron, "STM study of the growth of Co on oxygen absorbed Cu(110)",  Surf. Sci. 450, 227 (2000).

26.            Z. Q. Qiu and S. D. Bader, "Surface Magneto-Optic Kerr Effect",  Review of Scientific Instruments 71, 1243 (2000).

27.            Hyuk J. Choi, E. Rotenberg, R. K. Kawakami, U. Bovensiepen, J. H. Wolfe, N. V. Smith, and Z. Q. Qiu, “Effect of interfacial roughness on the phase of quantum well states in Cu/Co(001) and Cu/Ni(001) systems”,  Phys. Rev. B 62, 6561 (2000).

28.            W. L. Ling, Z. Q. Qiu, O. Takeuchi, D. F. Ogletree, and M. Salmeron, “Effect of oxygen surfactant on the magnetic and structural properties of Co on Cu(110)”,  Phys. Rev. B 63, 024408 (2001).

29.            J. H. Wolfe, R. K. Kawakami, W. L. Ling, and Z. Q. Qiu, Rodrigo Arias, and D. L. Mills, “Roughness Induced In-Plane Uniaxial Magnetic Anisotropy in Fe/MgO(100)”, J. of Mag. Magn. Mat. 232, 36 (2001).

30.            Z. Q. Qiu and N. V. Smith, “Quantum Well States and Oscillatory Magnetic Interlayer Coupling”,  J. of Physics: Condensed Matter 14 (2002) R169.

31.            K. L. Man, W. L. Ling, Silena Y. Paik, H. Poppa, M.S. Altman, and Z.Q. Qiu,  “Modification of Initial Growth and Magnetism in Fe/Cu(100)”,  Phys. Rev. B 65, 024409 (2002).

32.            W. L. Ling, Eli Rotenberg, H. J. Choi, J. H. Wolfe, F. Toyama, S. Paik, N. V. Smith, and Z. Q. Qiu, “Double quantum well states in Cu/Co/Cu grown on Co(001)”,  Phys. Rev. B 65, 113406 (2002).

33.            Y. Z. Wu, C. Won, and Z. Q. Qiu,  “Magnetic uniaxial anisotropy of Fe films grown on vicinal Ag(001)”,  Phys. Rev. B 65, 184419 (2002).

34.            Y. Z. Wu, C. Won, A. Scholl, A. Doran, F. Toyoma, X.F. Jin, N. V. Smith, and Z. Q. Qiu,  “Interfacial magnetism of fcc Fe and the effect of the oscillatory interlayer coupling on the Ni magnetic properties in Ni/Fe/Co/Cu(100)”,  Phys. Rev. B 65, 214417 (2002).

35.            Hyuk J. Choi, W. L. Ling, A. Scholl, J. H. Wolfe, S. Anders, U. Bovensiepen, F. Toyama, S. Paik, F. Nolting, and Z. Q. Qiu,  “Spin reorientation transition in magnetically coupled Fe/Cu/Ni/Cu(001)”,  Phys. Rev. B 66, 014409 (2002).

36.            H. W. Zhao, Y. Z. Wu, C. Won, F. Toyoma, and Z. Q. Qiu, “Effect of the Cu capping layer on the magnetic anisotropy of Ni/Cu(100)”,  Phys. Rev. B 66, 104402 (2002).

37.            Y. Z. Wu, C. Y. Won, E. Rotenberg, H. W. Zhao, F. Toyoma, N. V. Smith, and Z. Q. Qiu,  “Dispersion of quantum well states in Cu/Co/Cu(001)”,  Phys. Rev. B 66, 245418 (2002).

38.            Y. Z. Wu, C. Won, H. W. Zhao, Z. Q. Qiu, “SMOKE study of Co thin films grown on double curved Cu(001)”, Phys. Rev. B 67, 094409 (2003).

39.            C. Won, Y. Z. Wu, N. Kurahashi, K. T. Law, H. W. Zhao, A. Scholl, A. Doran, and Z. Q. Qiu, “Evidence of the oscillatory magnetic anisotropy in Ni/Co/Ni/Cu(100)”, Phys. Rev. B 67, 174425 (2003).

40.            J. M. An, D. Raczkowski, Y. Z. Wu, C. Y. Won, L. W. Wang, A. Canning, M. A. Van Hove, E. Rotenberg, and Z. Q. Qiu, “Quantization condition of quantum-well states in Cu/Co(100)”, Phys. Rev. B 68, 045419 (2003).

41.            C. Won, Y. Z. Wu, H. W. Zhao, A. Scholl, A. Doran, and Z. Q. Qiu,  “Effect of the interlayer coupling on the Ni spin reorientation in Ni/Fe/Co/Cu(100)”,  Phys. Rev. B 68, 052404 (2003).

42.            C. Won, Y. Z. Wu, A. Scholl, A. Doran, N. Kurahashi, H. W. Zhao, and Z. Q. Qiu,  “Magnetic phase transition in Co/Cu/Ni/Cu(100) and Co/Fe/Ni/Cu(100)”,  Phys. Rev. Lett. 91, 147202 (2003).

43.            H. W. Zhao, Y. Z. Wu, C. Won, and Z. Q. Qiu, “Growth-induced uniaxial magnetic anisotropy in Co/Cu(100)”, J. Appl. Phys. 95, 7300 (2004).

44.            Y. Z. Wu, C. Won, E. Rotenberg, H. W. Zhao, N. V. Smith, and Z. Q. Qiu, “Checkerboard pattern of the interlayer coupling between two Co films across Fe/Cu and Cu/Co/Cu spacer layers grown on Cu(100)”, Phys. Rev. B 69, 214410 (2004).

45.            Z. Tian, C. S. Tian, L. F. Yin, D. Wu, G. S. Dong, Xiaofeng Jin, and Z. Q. Qiu, “Magnetic ordering and anisotropy of epitaxially grown FexCu1–x alloy on GaAs(001)”,  Phys. Rev. B 70, 012301 (2004).

46.            H. W. Zhao, C. Won, Y. Z. Wu, A. Scholl, A. Doran, and Z. Q. Qiu, “Magnetic phase transition and spin-reorientation transition of Cu/Ni/Fe/Cu(100) studied by photoemission electron microscopy”, Phys. Rev. B 70, 024423 (2004).

47.            Y. Z. Wu, C. Won, A. Scholl, A. Doran, H. W. Zhao, X. F. Jin, and Z. Q. Qiu, “Magnetic stripe domains in coupled magnetic sandwiches”, Phys. Rev. Lett. 93, 117205 (2004).

48.            K. L. Man, Z. Q. Qiu, and M. S. Altman, “Kinetic Limitations in Electronic Growth of Ag films on Fe(100)”,  Phys. Rev. Lett. 93, 236104 (2004).

49.            Yang Guo, Yan-Feng Zhang, Xin-Yu Bao, Tie-Zhu Han, Zhe Tang, Li-Xin Zhang, Wen-Guang Zhu, E. G. Wang, Qian Niu, Z. Q. Qiu, Jin-Feng Jia, Zhong-Xian Zhao, and Qi-Kun Xue, “Superconductivity modulated by quantum size effects”, Science 306, 1915 (2004).

50.            C. Won, Y. Z. Wu, H. W. Zhao, A. Scholl, A. Doran, W. Kim, T. L. Owens, X. F. Jin, and Z. Q. Qiu, “Studies of FeMn/Co/Cu(001) using Photoemission Electron Microscopy and Surface Magneto-Optic Kerr Effect”, Phys. Rev. B. 71, 024406 (2005).

51.            Y. Z. Wu, A. K. Schmid, M. S. Altman, X. F. Jin, and Z. Q. Qiu, “Spin-dependent Fabry-Pérot interferometer of a Cu thin film grown on fcc Co(001)”,  Phys. Rev. Lett. 94, 027201 (2005).

52.            C. Won, Y. Z. Wu, W. N. Kurahashi, H. W. Zhao, Z. Q. Qiu, A. Scholl, and A. Doran, Comment on "Magnetic phase transition in Co/Cu/Ni/Cu(100) and Co/Fe/Ni/Cu(100)" - Reply, Phys. Rev. Lett. 94, 039704 (2005).

53.            C. S. Tian, Z. Tian, J. Wu, G. S. Dong, X. F. Jin, Y. Z. Wu, and Z. Q. Qiu, “Effect of Mn overlayer on spin reorientation transition at Ni/Cu(001)”,  J. of Mag. Magn. Mat. 286, 497 (2005).

54.            C. S. Tian, D. Qian, D. Wu, R .H. He, Y. Z. Wu, W. X. Tang, L. F. Ying, Y. S. Shi, G. S. Dong, X. F. Jin, X. M. Jiang, F. Q. Liu, H. J. Qian, K. Sun, L. M. Wang, G. Rossi, Z. Q. Qiu, and J. Shi, “Body-center-cubic Ni and its magnetic properties”, Phys. Rev. Lett. 94, 137210 (2005).

55.            Minghu Pan, Ke He, Lijuan Zhang, Jinfen Jia, Qikun Xue, Wondong Kim, and Z. Q. Qiu, “Structure and magnetism of ultrathin Co film grown on Pt(100)”,  J. of Vac. Sci. Tech. A 23, 790 (2005).

56.            C. Won, Y. Z. Wu, J. Choi, W. Kim, A. Scholl, A. Doran, T. Owens, J. Wu, X. F. Jin, and Z. Q. Qiu, “Magnetic stripe melting at the spin reorientation transition in Fe/Ni/Cu(001)”, Phys. Rev. B 71, 224429 (2005).

57.            Yan-Feng Zhang, Yang Guo,, Tie-Zhu Han, Zhe Tang, Quan-Tong Shen, Z. Q. Qiu, Jin-Feng Jia, Qi-Kun Xue, “Band structure and oscillatory electron-phonon coupling of Pb thin films determined by atomic-layer-resolved quantum well states”,  Phys. Rev. Lett. 95, 096802 (2005).

58.            K. He, L. J. Zhang, X. C. Ma, J. F. Jia, Q. K. Xue, and Z. Q. Qiu,  “Growth and magnetism of ultrathin Fe films on Pt(100)”,  Phys. Rev. B 72, 155432 (2005).

59.            Eli Rotenberg, Y. Z. Wu, J. M. An, M. A. Van Hove, A. Canning, L.W. Wang, and Z. Q. Qiu,  “Non-free-electron momentum- and thickness-dependent evolution of quantum well states in the Cu/Co/Cu(001) system”, Phys. Rev. B 73, 075426 (2006).

60.            Y. Z. Wu, C. Won, E. Rotenberg, H. W. Zhao, Qi-Kun Xue, W. Kim, T. L. Owens, N. V. Smith, and Z. Q. Qiu, “Resonant interaction between two Cu quantum wells”, Phys. Rev. B 73, 125333 (2006).

61.            Y. Z. Wu, A. K. Schmid, and Z. Q. Qiu,  “Spin-dependent quantum interference from MgO thin films grown on Fe(001)”,  Phys. Rev. Lett. 97, 217205 (2006).

62.            Y. Z. Wu, Z. Q. Qiu, Y. Zhao, A. T. Young, E. Arenholz, and B. Sinkovic,  “Tailoring the spin direction of antiferromagnetic NiO thin films grown on vicinal Ag(001)”, Phys. Rev. B 74, 212402 (2006).

63.            J. Choi, J. Wu, C. Won, Y. Z. Wu, A. Scholl, A. Doran, T. Owens, and Z. Q. Qiu,  “Magnetic bubble domain phase at the spin reorientation transition of ultrathin Fe/Ni/Cu(001) film”,  Phys. Rev. Lett. 98, 207205 (2007).

64.            J. Choi, J. Wu, Y. Z. Wu, C. Won, A. Scholl, A. Doran, T. Owens, and Z. Q. Qiu, “Effect of atomic steps on the interfacial interaction of FeMn/Co film grown on vicinal Cu(001)”, Phys. Rev. B 76, 054407 (2007).

65.            U. Bauer, J. Choi, J. Wu, H. Chen, and Z. Q. Qiu, “Effect of step decoration on the spin reorientation of Ni films grown on vicinal Cu(001)”, Phys. Rev. B 76, 184415 (2007).

66.            C. Won, Y. Z. Wu, E. Arenholz, J. Choi, J. Wu,  and Z. Q. Qiu, “Symmetry-breaking induced exchange bias in ferromagnetic Ni/Cu/Co and Ni/Fe/Co sandwiches grown on vicinal Cu(001) surface”,  Phys. Rev. Lett. 99, 077203 (2007).

67.            J. Wu, J.W. Choi, O. Krupin, E. Rotenberg, Y. Z. Wu, and Z. Q. Qiu, “Retrieving the energy band of Cu thin films using the quantum well states”, J. Phys.: Condens. Matter 20 035213 (2008).

68.            Y. Z. Wu, Y. Zhao, E. Arenholz, A. T. Young, B. Sinkovic, C. Won, and Z. Q. Qiu,  “Analysis of x-ray linear dichroism spectra for NiO thin films grown on vicinal Ag(001)”, Phys. Rev. B 78, 064413 (2008).