T.Kohashi, M. Konoto, and K. Koike, “High-resolution spin-polarized scanning electron microscopy (spin SEM)”, J. Electron Microsc. 59, 43-52(2010)

M. Konoto, T.Yamada, K. Koike, H. Akoh, M. Kawasaki.and  Y.Tokura, "Magnetic quasi-domain structures in Ru-doped La0.6Sr0.4MnO3 thin films" , Appl. Phys. Lett. 93,252503-1-3 (2008)

M. Konoto, T.Yamada, K. Koike, H. Akoh, T. Arima.and  Y.Tokura, "Formation and control of magnetic vortex chirality in patterned micromagnet arrays" , J Appl. Phys. 103, 023904-1-4 (2008)

K. Mori, M. Yamazaki, T. Hiraki, H. Matsuyama, and K. Koike “Comment on “Oxidation of the Fe(110) surface: An Fe3O4(111)/Fe(110) bilayer” ”, Phys. Rev. B 74, 026405-1-2 (2006)

T. Kohashi, M. Konoto, and K. Koike, "Systematic Experiment of Mott Scattering" ,  Jpn. J. Appl. Phys. 45. 6468-6474 (2006)

K. Mori, M. Yamazaki, T. Hiraki, H. Matsuyama, and K. Koike, "Magnetism of a FeO(111)/Fe(110) surface", Phys. Rev. B 72, 014418-1-6(2005)

M. Konoto, T. Kohashi, K. Koike, T. Arima, Y. Kaneko, T. Kimura, and Y. Tokura, "Microscopy of magnetic transition in a layered manganite La2-2xSr1+2xMn2O7 (x = 0.32)”, Phys. Rev. B 71, 184441-1-5(2005)

N. Kida, T. Yamada, M. Konoto, Y. Okimoto, T. Arima, K. Koike, H. Akoh, and Y. Tokura, “Optical magnetoelectric effect in a submicron patterned magnet”, Phys. Rev. Lett. 94, 077205-1-4(2005).

T. Kawagoe, Y. Iguchi, A. Yamasaki, Y. Suzuki, K. Koike, and S.Suga, “Surface magnetic structure of epitaxial Cr(001) films on Au(001) studied by spin-polarizedscanning tunneling spectroscopy”, Phys. Rev. B 71, 014427-1-7(2005).

M. Konoto,. T. Kohashi, K. Koike, T. Arima, Y. Kaneko, T. Kimura, and Y. Tokura, “Direct imaging of temperature-dependent layered antiferromagnetism of a magnetic oxide”, Phys. Rev. Lett. 93, 107201-1-4(2004).

T. Kohashi, M. Konoto, and K. Koike, “A spin rotator for spin-polarized scanning electron microscopy”, Rev. Sci. Instrum. 75, 2003-2007 (2004).

M. Konoto, T. Kohashi, K. Koike, T. Arima, Y. Kaneko, Y. Tomioka, and Y. Tokura, "Magnetic domain structure of an La0.7Sr0.3MnO3 (001) surface observed by spin-polarized scanning electron microscope", Appl. Phys. Lett. 84, 243-247 (2004)

T. Kawagoe, Y. Suzuki, M. Bode, and K. Koike, "Evidence of a topological antiferromagnetic order on ultrathin Cr(001) film surface studied by spin-polarized scanning tunneling spectroscopy", J. Appl. Phys. 93, 6575-6577 (2003)

T. Kawagoe, E. Tamura, Y. Suzuki, and K. Koike, “Scattering of surface state electrons by the monoatomic step in Fe(001): Differential conductivity imaging by scanning tunneling microscopy (STM)”, Phys. Rev. B 65, 024406-1-5 (2002).

M. Konoto, T. Kawagoe, K. Koike, Y. Hirayama, K. Tanahashi, H. Matsuyama, T. Kanemura, O. Kitakami, and Y. Shimada, “Fabrication of a Magnetic Block Array for High-Density Patterned Media”, J. Mag. Soc. Jpn. 26, 243-247 (2002).

T. Kohashi, and K. Koike, “Spin-Polarized Scanning Electron Microscope with 5-nm Resolution”, Jpn. J. Appl. Phys. 40, L1264-L1266 (2001).

K. Koike, H. Matsuyama, Y. Hirayama, K. Tanahashi, T. Kanemura,  O. Kitakami, and Y. Shimada,  ."Magnetic block array for patterned magnetic media", Appl. Phys. Lett. 78, 784-786 (2001)

L. Li, A. Kida, K. Koike, and M. Matsui, "Effect of Adsorbed Oxygen on Initial Growth of Fe/Cu(111)"　Mater.Trans.JIM 42,1056-1059 (2001).

M. Yasuda, K. Tamura,. H. Kawata, K. Murata, T. Furukawa, and K.Koike, “Analysis of the spin polarization of secondary electrons emitted from Au/Fe”, Appl. Surf. Sci. 169-170, 78-81 (2001)

H. Matsuyama, C. Haginoya, and K. Koike,  "Microscopic Imaging of Fe Magnetic Domains Exchange Coupled with Those in a NiO(001) Surface", Phys. Rev. Lett. 85, 646-649 (2000)

K. Tamura, M. Yasuda, K. Murata, K. Koike, and M. Kotera, . "Analysis of the Spin Polarization of Secondary Electrons Emitted from Permalloy Polycrystals", Jpn. J. Appl. Phys. 38, 7137-7157 (1999)

C. Haginoya, K. Koike, Y. Hirayama, J. Yamamoto, M. Ishibashi, O. Kitakami, and Y. Shimada, "Thermomagnetic writing on 29Gbit/in2 patterned magnetic media ", Appl. Phys. Lett. 75, 3159-3161 (1999)

A. Kida, H. Kajiyama, S. Heike, T. Hashizume, and K. Koike, "Self-organized growth of Fe nano-wire array on H2O/Si(100)(2xn)", Appl. Phys. Lett. 75, 540-542 (1999)

C. Haginoya, S. Heike, M. Ishibashi, K. Nakamura, K. Koike, T. Yoshimura, J. Yamamoto, and Y. Hirayama, "Magnetic nano-particle array with perpendicular crystal magnetic anisotropy", J. Appl. Phys. 85, 8327-8331 (1999)

T. Furukawa and K. Koike, "Primary Energy-dependent Attenuation of Polarization of Secondary Electrons Emitted from Ag/Fe(110)", Surf. Sci. 425, 180-184 (1999)

T. Furukawa and K. Koike,  "Oscillations of Negative Polarization in Secondary Electrons Emitted from  Agu/Fe(110)", Jpn. J. Appl. Phys. 38, 1952-1954 (1999)

T. Kohashi, H. Matsuyama, K. Koike, Y. Murakami, Y. Tanaka, and H. Awano, "Spin-polarized scanning electron microscope observation of 0.1mm marks recorded by magnetic field modulation on a magneto-optical recording disk", Appl. Phys. Lett. 72, 124-126 (1998)

T. Furukawa and K. Koike, "Observation of polarization and intensity oscillations in secondary electrons emitted from Ag/Fe(110)", Phys. Rev. B 57, 2694-2696 (1998)

T. Kohashi, H. Matsuyama, C. Haginoya, K. Koike, and T. Takayama,  "Observation of domains in obliquely evaporated Co-CoO films by spin-polarized scanning electron microscopy", J. Appl. Phys. 81, 7915-7921 (1997)

C. Haginoya, M. Ishibashi, and K. Koike, "Nanostructure array fabrication with a size-controllable natural lithography", Appl. Phys. Lett. 71, 2934-2936(1997)

H. Matsuyama, T. Kohashi, K. Koike, and T. Takayama, "Direct Observation of High-Density Recorded Bits in Co-CoO Obliquely Evaporated Media with a Spin Polarized Scanning Electron Microscope", J. Mag. Soc. Jpn. 20, 795-799 (1996)

K. Koike and T. Furukawa, "Evidence for Ferromagnetic Order at the FeO(111) Surface", Phys. Rev. Lett. 77, 3921-3924 (1996)

C. Haginoya, K. Koike, H. Miyamoto, J. Ushiyama, and H. Awano, "Recorded mark observation by spin-polarized scanning electron microscopy", T. Kohashi, H. Matsuyama, J. Mag. Soc. Jpn.20, 303-308 (1996)

T. Kohashi, H. Matsuyama, C. Haginoya, K. Koike, H. Miyamoto, and J. Ushiyama, "Mark observation of TbFeCo recorded on land/groove substrate by spin-polarized scanning electron microscopy", Appl. Phys. Lett.68, 3350-3352 (1996)

T. Furukawa and K. Koike, "Monolayer-period oscillation of secondary electrons and its application for determining the polarization oscillation period in Au/Fe(110)", Phys. Rev.B 54,  17896-17901 (1996)

T. Furukawa and K. Koike, "Primary energy-dependent attenuation of polarization of secondary electrons emitted from Au/Fe(110)", Surf. Sci.347, 193-198 (1996)

Y. Murayama and K. Koike, "Non-RKKY mechanism of polarization in Au thin film depsited onto ferromagnetic Fe", J. Mag. Mag. Mater.140-144, 659-660(1995)

K. Koike, T. Furukawa, and Y. Murayama, "Appearence and Disappearance of  Polarization an d Intensity Oscillation of Secondary Electrons Emitted from Au/Fe", Phys. Rev.B 51, 10260-10263 (1995)

T. Kohashi, H. Matsuyama, and K. Koike, "A spin rotator for detecting all three magnetization vector components by spin-polarized scanning electron microscopy", Rev. Sci. Instrum.66, 5537-5543 (1995)

S. Sudo, K. Mitsuoka, K. Koike, H. Matsuyama, and Y. Sugita,"Observation of Magnetic Stripe Domains in Ni-Fe Films Using  Spin-Polarized Scanning Electron Microsdopy", Jpn. J. Appl. Phys. 33, L30-L31 (1994)

H. Matsuyama, K. Koike, F. Tomiyama, Y. Shiroishi, A. Ishikawa, and H. Aoi,"High Spatial Resolution Domain-Observation of Longitudinal Thin film Media by  Spin-Polarized Scanning Electron Microscopy", IEEE Trans. Mag. 30, 1327-1330(1994)

H. Matsuyama and K. Koike, "Twenty-nm Resolution Spin-Polarized Scanning Electron Microscope", J. Electron Microsc. 43, 157-163 (1994)

K. Koike, T. Furukawa, G. P. Cameron, and Y. Murayama, "Intensity and Polarization Oscillation of Secondary Electrons Emitted from Au/Fe(110)", Phys. Rev. B 50, 4816-4818(1994)

K. Koike, T. Furukawa, G. P. Cameron, and Y. Murayama, "Polarization Oscillation of Secondary Electrons Emitted from Au/Fe(110)", Jpn. J. Appl. Phys. 33, L769-L771 (1994)

T. Kohashi, H. Matsuyama, K. Koike, and H. Miyamoto, "A Spin Rotator Used for Detecting All Three Magnetization Vector Components in Spin-Polarized Scanning Electron Microscopy", J. Mag. Soc. Jpn.18, 7-10 (1994)

Y. Honda, M. Suzuki, F. Tomiyama, H. Matsuyama, N. Inaba, K. Koike, and M. Futamoto, "Recorded Magnetization Structures and Noise Characterisyics of CoCr Alloy Longitudinal Thin-Film Media", Jpn. J. Appl. Phys.33, L1083-L1086 (1994)

W. J. Tseng, K. Koike, and J. C. M. Li, "Magnetic Domains along Shear Bands in Amorphous Metals Observed by Spin-Polarized Scanning Electron Microscopy", J. Mater. Res.8, 775-784 (1993)

K. Koike, H. Matsuyama, W. J. Tseng, and J. C. M. Li, "Fine Magnetic Domain Structure of Stressed  Amorphous Metal", Appl. Phys. Lett. 62, 2581-2583 (1993)

T. Furukawa and K. Koike, "Absorption Current Polarization Detector with Fe(110) Target", Jpn. J. Appl. Phys. 32, 1851-1854 (1993)

K. Koike and J. Kirschner,"Primary Energy Dependence of Secondary Electron Polarization", J. Phys. D 25, 1139-1141 (1992)

J. Kirschner and K. Koike, "Spin Polarization of Ssecondary Electrons from Fe(110) Excited by Unpolarized Primary Electrons", Surf. Sci. 273, 147-159 (1992)

H. Matsuyama and K. Koike, "A Data-Acquisition and Display System for Spin-PolarizedScanning Electron Microscopy (Spin-SEM)", Rev. Sci. Instrum. 62, 970-981 (1991)

H. Matsuyama, K. Koike, T. Kobayashi, R. Nakatani, and K. Yamamoto, "Side Plane Domain Observation of Fe-C/Ni-Fe/BN Multilayers with a Spin-Polarized Scanning Electron Microscope", Appl. Phys. Lett. 57, 2028-2030 (1990)

H. Matsuyama and K. Koike, "A Data-Acquisition and Display System for Spin-PolarizedScanning Electron Microscopy (Spin-SEM)", J. Electron Microsc. 39,  92-96 (1990)

J. Kirschner, K. Koike, and H. P. Oepen, "Spin Polarization of Ion Excited Secondary Electrons from Ferromagnets", Vacuum 41, 518-520 (1990)

M. S. Hammond, G. Fahsold, K. Koike, and J. Kirschner, "Spin-Dependence of Absorbed and Reflected Current on Fe(110) and a Comparison with Ssecondary Electron Polarization with Fine Structure", Vacuum 41, 500-502 (1990)

K. Koike, H. Matsuyama, and K. Hayakawa, "Spin-Polarized Scanning Electron Microscope Equipped With a Thumb-Size Spin Dtector", Jpn. J. Appl. Phys. 27, L1352-L1354 (1988)

K. Mitsuoka, S. Sudo, S. Narishige, M. Hanazono, Y. Sugita, K. Koike, H. Matsuyama, and K. Hayakawa, "Magnetic Domain of Permalloy Films for Magnetic Recording Thin Film Heads Observed by Spin-Polarized SEM (Invited)", IEEE Trans. Mag. 23, 2155-2160 (1987)

H. Matsuyama, K. Koike, K. Hayakawa, K. Mitsuoka, S. Sudo, S. Narishige, M. Hanazono, and Y. Sugita, "Spin-Polarized-SEM Observation of Surface Magnetization Across Domain Wall in Permalloy Films", IEEE Trans. Mag. 23, 2173-2175 (1987)

K. Koike, H. Matsuyama, H. Todokoro, and K. Hayakawa, "Magnetic Domain Observation Using Spin-Polarized Scanning Electron Microscopy", Scanning Microsc. 1, 31-39 (1987)

K. Koike, H. Matsuyama, and K. Hayakawa, "Spin-Polarized Scanning Electron Microscopy  for Micro-Magnetic Structure Obserbation", Scanning Microsc. Suppl. 1, 241-253 (1987)

J. Kirschner, K. Koike, and H .P. Oepen, "Spin Polarization of Ion-Excited Secondary Electrons from Ferromagnets and Its Application for Magnetic Sputter Depth Profiling", Phys. Rev. Lett. 59, 2099-2102 (1987)

K. Koike,  H. Matsuyama, K. Mitsuoka, and K. Hayakawa,  "Spin-Polarized Scanning Electron Microscope for Analysis of Complicated Magnetic Domain Structures", Jpn. J. Appl. Phys. 25, L758-L760 (1986)

K. Koike, H. Matsuyama, K. Hayakawa, K. Mitsuoka, S. Narishige, Y. Sugita, K. Shiiki, and C. Saka, "Observation of Neel Structure Walls on the Surface of 1.4-mm-Thick Magnetic Films Using Spin-Polarized Scanning Electron Microscopy", Appl. Phys. Lett. 49, 980-981 (1986)

K. Koike, H. Matsuyama, K. Hayakawa, and H. Todokoro, "Spin-Polarized Scanning Electron Microscopy", Jpn. J. Appl. Phys. 24, 1078-1081 (1985)

K. Koike, H. Matsuyama, K. Hayakawa, and H. Todokoro, "High Spatial Resolution Spin-Polarized Scanning Electron Microscopy",Jpn. J. Appl. Phys, 24, L833-L834 (1985)

K. Koike, H. Matsuyama, K. Hayakawa, and H. Todokoro, "Spin-Polarized Scanning Electron Microscopy  for Magnetic Domain Observation", Jpn. J. Appl. Phys. 24, L542-L544 (1985)

K. Koike and K. Hayakawa, "Domain Observation  with Spin-Polarized Secondary Electrons (Invited)", J. Appl. Phys. 57, 4244-4248 (1985)

K. Koike and K. Hayakawa, "Observation of Magnetic Domains with Spin-Polarized Secondary Electrons", Appl. Phys. Lett. 45, 585-586 (1984)

K. Koike and K. Hayakawa, "Scanning Electron Microscope Observation of Magnetic Domains Using Spin-Polarized Secondary Electrons", Jpn. J. Appl. Phys. 23, L187-L188 (1984)

K. Koike and K. Hayakawa, "Spin Polarization of Electron-Excited Secondary Electrons from a Permalloy Polycrystal", Jpn. J. Appl. Phys. 23, L85-L87 (1984)

K. Koike and K. Hayakawa, "Spin Polarization due to Low-Energy Electron Diffraction at the W(001) surface", Jpn. J. Appl. Phys. 22, 1332-1334 (1983)