Abstract
By using an on-chip microwave sensor employing spintronic and spin caloritronic principles, a spintronic technique has been developed for microwave imaging. This novel technique allows microwave fields to be directly rectified on chip into dc voltage signals. This imaging technique does not require complicated and expensive microwave systems to operate, yet it can still electrically detect scattered microwave fields accurately enough to image embedded defects and hidden objects. By varying the experimental setup, apparatuses based on spintronic sensors have been developed for achieving both near- and far-field imaging (at microwave frequencies) as well as for performing on-chip dielectric analysis.
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References
P.J. Shull, Nondestructive Evaluation: Theory, Techniques, and Applications (Marcel Dekker, New York, 2002)
R. Zoughi, Microwave Non-Destructive Testing and Evaluation (Kluwer, Dordrecht, 2000)
Y.-L. Lu, T. Wei, F. Duewer, Y. Lu, N.-B. Ming, P.G. Schultz, X.-D. Xiang, Science 276, 5321 (1997)
E.C. Fear, S.C. Hagness, P.M. Meaney, M. Okoniewski, M.A. Stuchly, IEEE Microw. Mag. 3, 48 (2002)
L. Diener, Res. Nondestruct. Eval. 7, 137 (1995)
Y.J. Kim, L. Jofre, F.d. Flaviis, M.Q. Feng, IEEE Trans. Antennas Propag. 51, 3022 (2003)
K. Arunachalam, V.R. Melapudi, L. Udpa, S.S. Udpa, Nondestruct. Test. Eval. Int. 39, 585 (2006)
M. Pirola, V. Teppati, V. Camarchia, IEEE Instrum. Meas. Mag. 10, 14 (2007)
G.R. Facer, D.A. Notterman, L.L. Sohn, Appl. Phys. Lett. 78, 996 (2001)
C. Song, P. Wang, Appl. Phys. Lett. 94, 023901 (2009)
X.F. Zhu, M. Harder, A. Wirthman, B. Zhang, W. Lu, Y.S. Gui, C.-M. Hu, Phys. Rev. B 83, 104407 (2011)
Z.X. Cao, M. Harder, L. Fu, B. Zhang, W. Lu, G.E. Bridges, Y.S. Gui, C.-M. Hu, Appl. Phys. Lett. 100, 252406 (2012)
H.J. Juretschke, J. Appl. Phys. 31, 1401 (1960)
Y.S. Gui, N. Mecking, X. Zhou, G. Williams, C.-M. Hu, Phys. Rev. Lett. 98, 107602 (2007)
Z.H. Zhang, Y.S. Gui, L. Fu, X.L. Fan, J.W. Cao, D.S. Xue, P.P. Freitas, D. Houssameddine, S. Hemour, K. Wu, C.-M. Hu, Phys. Rev. Lett. 109, 037206 (2012)
C. Wang, Y.-T. Cui, J.Z. Sun, J.A. Katine, R.A. Buhrman, D.C. Ralph, J. Appl. Phys. 106, 053905 (2009)
S. Ishibashi, T. Seki, T. Nozaki, H. Kubota, S. Yakata, A. Fukushima, S. Yuasa, H. Maehara, K. Tsunekawa, D.D. Djayaprawira, Y. Suzuki, Appl. Phys. Express 3, 073001 (2010)
O. Prokopenko, G. Melkov, E. Bankowski, T. Meitzler, V. Tiberkevich, A. Slavin, Appl. Phys. Lett. 99, 032507 (2011)
L.H. Bai, Y.S. Gui, A. Wirthmann, E. Recksiedler, N. Mecking, C.-M. Hu, Z.H. Chen, S.C. Shen, Appl. Phys. Lett. 92, 032504 (2008)
X. Fan, R. Cao, T. Moriyama, W. Wang, H.W. Zhang, J.Q. Xiao, Appl. Phys. Lett. 95, 122501 (2009)
M. Harder, Z.X. Cao, Y.S. Gui, X.L. Fan, C.-M. Hu, Phys. Rev. B 84, 54423 (2011)
X. Fan, S. Kim, X. Kou, J. Kolodzey, H. Zhang, J.Q. Xiao, Appl. Phys. Lett. 97, 212501 (2010)
X.F. Zhu, M. Harder, J. Tayler, A. Wirthmann, B. Zhang, W. Lu, Y.S. Gui, C.-M. Hu, Phys. Rev. B 83, 140402(R) (2011)
A. Wirthman, X. Fan, Y.S. Gui, K. Martens, G. Williams, J. Dietrich, G.E. Bridges, C.-M. Hu, Phys. Rev. Lett. 105, 017202 (2010)
A. Sugihara, M. Kodzuka, K. Yakushiji, H. Kubota, S. Yuasa, A. Yamamoto, K. Ando, K. Takanashi, T. Ohkubo, K. Hono, A. Fukushima, Appl. Phys. Express 3, 065204 (2010)
A. Fukushima, K. Yagami, A. Tulapurkar, Y. Suzuki, H. Kubota, A. Yamamoto, S. Yuasa, Jpn. J. Appl. Phys. 44, L12 (2005)
M. Walter, J. Walowski, V. Zbarsky, M. Münzenberg, M. Schäfers, D. Ebke, G. Reiss, A. Thomas, P. Peretzki, M. Seibt, J.S. Moodera, M. Czerner, M. Bachmann, C. Heiliger, Nat. Mater. 10, 742 (2011)
W. Lin, M. Hehn, L. Chaput, B. Negulescu, S. Andrieu, F. Montaigne, S. Mangin, Nat. Commun. 3, 744 (2012)
G.E.W. Bauer, E. Saitoh, B.J. van Wees, Nat. Phys. 11, 391 (2012)
E.A. Ash, G. Nicholls, Nature (London) 237, 510 (1972)
Acknowledgements
This review article has been based on many collaborative studies as identified in the reference section. We would like to thank all our coauthors in these studies for their valuable contributions. We would also like to thank H. Guo, H. Abou-Rachid, J.Q. Xiao, S. Pistorius, L. Shafai, and J. LoVetri for their discussions, and F. Lin and J.D. Wu for their help in fabricating microfluidic channels. This work is funded by NSERC, CFI, URGP, CMC, the Canadian Breast Cancer Foundation (CBCF), and NSFC (No. 10990100 and No. 11128408) grants.
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Cao, Z.X., Lu, W., Fu, L. et al. Spintronic microwave imaging. Appl. Phys. A 111, 329–337 (2013). https://doi.org/10.1007/s00339-013-7553-2
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DOI: https://doi.org/10.1007/s00339-013-7553-2