JH Group

Electronic/Spintronic/Photonic Meta-Materials

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A 160 kBit molecular memory at 100 GBit/cm² E. Johnston-Halperin, E. DeIonno, J.E. Green, Y. Luo, J.W. Choi, Y. Bunimovich, A. Boukai, B.A. Sheriff, and J.R. Heath, Nature 445, 414 (2007).

Anisotropic Thermopower and Planar Nernst Effect in Ga_1-xMn_xAs Ferromagnetic Semiconductors Yong Pu, E. Johnston-Halperin, D. D. Awschalom, and Jing Shi, Phys. Rev. Lett. 97, 036601 (2006).

Circuit fabrication at 17 nm half-pitch by nanoimprint lithography, G.Y. Jung, W. Wu, Z. Yu, S.Y. Wang, Z. Li, R.S. Williams, E. Johnston-Halperin, J.E. Green, B.A. Sheriff, A. Boukai, Y. Bunimovich, and J.R. Heath, Nanoletters, 6, 351 (2006).

Bridging dimensions: demultiplexing ultra-high density nanowire circuits, R.A. Beckman, E. Johnston-Halperin, Y. Luo, J.E. Green, and J.R. Heath, Science, 310, 465 (2005).

Concentration-independent local ferromagnetic Mn configuration in Ga1-xMnxAs, D. Wu, D.J. Keavney, R. Wu, E. Johnston-Halperin, D.D. Awschalom, and J. Shi, Phys. Rev. B, 71, 153310 (2005).

Fabrication of conducting Si nanowire arrays R.A. Beckman, E. Johnston-Halperin, N.A. Melosh, Y. Luo, J.E. Green, and J.R. Heath, J. Appl. Phys., 96, 5921 (2004).

Structural engineering of ferromagnetism in III-V digital ferromagnetic heterostructures J.A. Schuller, E. Johnston-Halperin, C.S. Gallinat, H. Knotz, A.C. Gossard, and D.D. Awschalom, J. Appl. Phys., 95, 4922 (2004).

Element resolved spin configureation in ferromagnetic manganese-doped gallium arsenide D.J. Keavney, D. Wu, J.W. Freeland, E. Johnston-Halperin, D.D. Awschalom, and J. Shi, Phys. Rev. Lett., 91, 187203 (2003).

Optical and electronic manipulation of spin coherence in semiconductors V.A. Sih, E. Johnston-Halperin, and D.D. Awschalom, Proc. Of the IEEE, 91, 752 (2003).

Theory of semiconductor magnetic bipolar transistors M. E. Flatt, Z. G. Yu, E. Johnston-Halperin, and D. D. Awschalom, Appl. Phys. Lett. 82, 4740 (2003).

Independent tuning of magnetic and electronic doping in (Ga,Mn)As based digital ferromagnetic heterostructures E. Johnston-Halperin, J. A. Schuller, C. S. Gallinat, T. C. Kreutz, R. C. Myers, R. K. Kawakami, H. Knotz, A. C. Gossard, and D. D. Awschalom, Phys. Rev. B 68, 165328 (2003).

Highly enhanced Curie temperatures in low temperature annealed (Ga,Mn)As epilayers K. C. Ku, S. J. Potashnik, R. F. Wang, M. J. Seong, E. Johnston-Halperin, R. C. Myers, S. H. Chun, A. Mascarenhas, A. C. Gossard, D. D. Awschalom, P. Schiffer, and N. Samarth, Appl. Phys. Lett. 82, 2302 (2003).

Spin Injection from (Ga,Mn)As into InAs Quantum Dots Y. Chye, M. E. White, E. Johnston-Halperin, B. D. Gerardot, D. D. Awschalom, and P. M. Petroff, Phys. Rev. B Rapid Comm. 66, 201301 (2002).

Anisotropic Electrical Spin Injection in Ferromagnetic Semiconductor Heterostructures D.K. Young, Y. Ohno, E. Johnston-Halperin, H. Ohno, and D.D. Awschalom, Appl. Phys. Lett. 80, 1598 (2002).

Spin-Polarized Zener Tunneling in (Ga,Mn)As E. Johnston-Halperin, D. Lofgreen, R.K. Kawakami, D.K. Young, L. Coldren, A.C. Gossard, and D.D. Awschalom, Phys. Rev. B Rapid Comm. 65, 041306 (2002).

Ferromagnetic Imprinting of Nuclear Spins in Semiconductors R. K. Kawakami, Y. Kato, M. Hanson, I. Malajovich, J. M. Stephens, E. Johnston-Halperin, G. Salis, A. C. Gossard, and D. D. Awschalom, Science 294, 131 (2001).

Spin spectroscopy of dark excitons in CdSe quantum dots to 60 T E. Johnston-Halperin, D. D. Awschalom, S. A. Crooker, Al. L. Efros, M. Rosen, X. Peng and A. P. Alivisatos, Phys. Rev. B Rapid Comm. 63, 205309 (2001).

Spin coherence and dephasing in GaN B. Beschoten, E. Johnston-Halperin, D. K. Young, M. Poggio, J. E. Grimaldi, S. Keller, S. P. DenBaars, U. K. Mishra, E. L. Hu, and D. D. Awschalom, Phys. Rev. B Rapid Comm. 63, 121202 (2001).

(Ga,Mn)As as a Digital Ferromagnetic Heterostructure R. K. Kawakami, E. Johnston-Halperin, L. F. Chen, M. Hanson, N. Guebels, J. S. Speck, A. C. Gossard and D. D. Awschalom, Appl. Phys. Lett. 77, 2379 (2000).

Stability of trions in strongly spin-polarized two-dimensional electron gases S.A. Crooker, E. Johnston-Halperin, D.D. Awschalom, R. Knobel, and N. Samarth, Phys. Rev. B Rapid Comm. 61, 16307 (2000).

Angular dependence of metamagnetic transitions in HoNi₂B₂C P. C. Canfield, S. L. Bud'ko, B. K. Cho, A. Lacerda, D. Farrell, E. Johnston-Halperin, V. A. Kalatsky, V. L. Pokrovsky Phys. Rev. B 55, 970 (1997).

Magnetization jumps and irreversibility in Bi₂Sr₂CaCu₂O₈ D.E. Farrell, E. Johnston-Halperin, L. Klein, P. Founier, A. Kapultnik, E.M. Frogan, A.I.M. Rae, T.W. Li, M.L. Trawick, R. Sasik, J.C. Garland Physical Review B 53, 11807 (1996).

Superconducting anisotropy of YNi₂B₂C E. Johnston-Halperin, J. Fiedler, D. E. Farrell, Ming Xu, B. K. Cho, P. C. Canfield, D. K. Finnemore, D. C. Johnston Physical Review B 51, 12852 (1995).

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