# Publications

From csb

## Contents

## 2012

- F. Mahfouzi, J. Fabian, N. Nagaosa, and B. K. Nikolić,
*Charge pumping by magnetization dynamics in magnetic and semi-magnetic tunnel junctions with interfacial Rashba or bulk extrinsic spin-orbit couplings*, Phys. Rev. B**85**, 054406 (2012). - K. K. Saha, M. Drndic, and B. K. Nikolić,
*DNA nucleotide-specific modulation of μA transverse edge currents through a metallic graphene nanoribbon with a nanopore*, Nano Lett.**12**, 50 (2012).

## 2011

- F. Mahfouzi, N. Nagaosa, and B. K. Nikolić,
*Charge pumping through the interface between topological insulator with massive surface Dirac fermions and a precessing ferromagnet*, arXiv:1112.2314. - C.-L. Chen, C.-R. Chang, and B. K. Nikolić,
*Quantum coherence and its dephasing in the giant spin Hall effect and nonlocal voltage generated by magnetotransport through multiterminal graphene bars*, arXiv:1111.4892. - F. Mahfouzi, J. Fabian, N. Nagaosa, and B. K. Nikolić,
*Charge pumping by magnetization dynamics in magnetic and semi-magnetic tunnel junctions with interfacial Rashba or bulk extrinsic spin-orbit couplings*, arXiv:1110.6781. - L. R. Shah, N. Bhargava, S. Kim, R. Stearrett, X. Kou, X. Sun, S. Sun, J. Kolodzey, E. R. Nowak, and J. Q. Xiao,
*Magnetic tunneling junction based magnetic field sensors: Role of shape anisotropy versus free layer thickness*, J. Appl. Phys.**109**, 07C731 (2011).

## 2010

- Ryan Stearrett, W. G. Wang, L. R. Shah, J. Q. Xiao, and E. R. Nowak,
*Magnetic noise evolution in CoFeB/MgO/CoFeB tunnel junctions during annealing*, Appl. Phys. Lett.**97**, 243502 (2010). [PDF]

- H. Zou, X. J. Wang, and Y. Ji,
*Reduction of spin-flip scattering in metallic nonlocal spin valves*, J. Vac. Sci. Technol. B**28**, 1314 (2010). [PDF]

- Xin Fan, Sangcheol Kim, Xiaoming Kou, James Kolodzey, Huaiwu Zhang, and John Q. Xiao,
*Microwave phase detection with a magnetic tunnel junction*, Appl. Phys. Lett.**97**, 212501 (2010). [PDF]

- Xiaoming Kou, Weigang Wang, Xin Fan, Lubna R. Shah, Rae Tao, and John Q. Xiao,
*High temperature annealing induced superparamagnetism in CoFeB/MgO/CoFeB tunneling junctions*, J. Appl. Phys.**108**, 083901 (2010).

- H. Zou, X. J. Wang, and Y. Ji,
*Nonlocal spin valves with thin Co electrodes for spin-transfer*, J. Appl. Phys.**108**, 033905 (2010). [PDF]

- Ryan Stearrett, W. G. Wang, L. R. Shah, Aisha Gokce, J. Q. Xiao, and E. R. Nowak,
*Evolution of barrier-resistance noise in CoFeB/MgO/CoFeB tunnel junctions during annealing*, J. Appl. Phys.**107**, 064502 (2010). [PDF]

- W. G. Wang, C. Ni, G. X. Miao, C. Weiland, L. R. Shah, X. Fan, P. Parson, J. Jordan-sweet, X. M. Kou, Y. P. Zhang, R. Stearrett, E. R. Nowak, R. Opila, J. S. Moodera, and J. Q. Xiao,
*Understanding tunneling magnetoresistance during thermal annealing in MgO-based junctions with CoFeB electrodes*, Phys. Rev. B**81**, 144406 (2010).

- S.-H. Chen, B. K. Nikolic, and C.-R. Chang,
*Inverse quantum spin Hall effect generated by spin pumping from precessing magnetization into graphene-based two-dimensional topological insulator*, Phys. Rev. B**81**, 035428 (2010). [PDF]

### Review articles

- B. K. Nikolic, L. P. Zarbo, and S. Souma,
*Spin currents in semiconductor nanostructures: A nonequilibrium Green function approach*, Chapter 24 in*The Oxford Handbook on Nanoscience and Technology: Frontiers and Advances, Vol. I: Basic Aspects*, edited by A. V. Narlikar and Y. Y. Fu. (Oxford University Press, Oxford, 2010). [PDF]

## 2009

- R. Cao, T. Moriyama, W. G. Wang, X. Fan, J. Kolodzey, S.-H. Chen, C.-R. Chang, Y. Tserkovnyak, B. K. Nikolic, and J. Q. Xiao,
*Spin-polarized transport and dynamics in magnetic tunneling structures*, IEEE Transactions on Magnetics**45**, 3434 (2009).

- W. G. Wang, J. Jordan-sweet, G. X. Xiao, C. Ni, A. Rumaiz, L. R. Shah, X. Fan, P. Parson, Y. P. Zhang, R. Stearrett, E. R. Nowak, J. S. Moodera, and J. Q. Xiao,
*In situ characterization of rapid crystallization of amorphous CoFeB electrodes in CoFeB/MgO/CoFeB junctions during thermal annealing*, Appl. Phys. Lett.**95**, 242501 (2009).

- R. Cao, X. Fan, T. Moriyama, and J. Q. Xiao,
*Nonlinear effective spin-mixing conductance in Pt/Ni80Fe20/Pt thin films*, J. Appl. Phys.**105**, 07C705 (2009).

- T. Moriyama, X. Fan, Y.Q. Wen, H.W. Zhang, and J.Q. Xiao,
*Ferromagnetic resonance spectroscopy with very large precession cone angle in magnetic tunnel junctions*, IEEE Transactions on Magnetics**45**, 2047 (2009).

- X. Fan, C. Rong, T. Moriyama, W.G. Wang, H.W. Zhang, and J.Q. Xiao,
*Magnetic tunnel junction based microwave detector*, Appl. Phys. Lett.**95**, 122501 (2009).

- L. R. Shah, B. Ali, H. Zhu, W. G. Wang, Y. Q. Song, H. W. Zhang, S. I. Shah, and J. Q. Xiao,
*Detailed study on the role of oxygen vacancies in structural, magnetic and transport behavior of magnetic insulator: Co-CeO2*, J. Phys.: Condens. Matter**21**, 486004.

- B. Ali, L.R. Shah, C. Ni, J.Q. Xiao, and S.I. Shah,
*Interplay of dopant, defects and electronic structure in driving ferromagnetism in Co-doped oxides: TiO2, CeO2 and ZnO*, J. Phys.: Condens. Matter**21**, 125504 (2009).

- L. R. Shah, W. G. Wang, H. Zhu, B. Ali, Y. Q. Song, H. W. Zhang, S. I. Shah, and J. Q. Xiao,
*Role of dopant, defect, and host oxide in the observed room temperature ferromagnetism: Co-ZnO versus Co-CeO2*, J. Appl. Phys.**105**, 07C515 (2009).

- A. Ozbay, A. Gokce, T. Flanagan, R. A. Stearrett, E. R. Nowak, and C. Nordman,
*Low frequency magnetoresistive noise in spin-valve structures*, Appl. Phys. Lett.**94**, 202506 (2009).

- A. Ozbay, E. R. Nowak, Z. G. Yu, W. Chu, Y. Shi, S. Krishnamurthy, Z. Tang, and N. Newman,
*Large magnetoresistance of thick polymer devices having electrodes*, Appl. Phys. Lett.**95**, 232507 (2009).

- X. J. Wang, H. Zou, L. E. Ocola, and Y. Ji,
*High spin injection polarization at an elevated dc bias in tunnel-junction-based lateral spin valves*, Appl. Phys. Lett.**95**, 022519 (2009).

- X. J. Wang, H. Zou, L. E. Ocola, R. Divan, and Y. Ji,
*Influence of dc bias currents on Co/Cu/Co non-local spin valves*, J. Appl. Phys.**105**, 093907 (2009).

- R. L. Dragomirova, D. A. Areshkin, and B. K. Nikolic,
*Shot noise probing of magnetic ordering in zigzag graphene nanoribbons*, Phys. Rev. B**79**, 241401(R) (2009). [PDF]

- S.-H. Chen, C.-R. Chang, J. Q. Xiao, and B. K. Nikolic,
*Spin and charge pumping in magnetic tunnel junctions with precessing magnetization: A nonequilibrium Green function approach*, Phys. Rev. B**79**, 054424 (2009). [PDF]

### Review articles

- B. K. Nikolic and R. L. Dragomirova,
*What can we learn about the dynamics of transported spins by measuring shot noise in spin-orbit-coupled nanostructures?*, Semiconductor Science and Technology**24**, 064006 (2009); in the special issue of SST on*The effects of spin-orbit interaction on charge transport*. [PDF]

- W. F. Egelhoff, P. W. T. Pong, J. Unguris, R.D. McMichael, E. R. Nowak, A. S. Edelstein, J. E. Burnette, and G. A. Fischer,
*Critical challenges for picoTesla magnetic-tunnel-junction sensors*, Journal Sensors and Actuator A: Physical**155**, 217 (2009). [PDF]

## 2008

- T. Moriyama, R. Cao, X. Fan, G. Xuan, B.K. Nikolic, Y. Tserkovnyak, J. Kolodzey and J.Q. Xiao,
*Tunnel barrier enhanced voltage signal generated by magnetization precession of a single ferromagnetic layer*, Phys. Rev. Lett.**100**, 067602 (2008). [PDF]

- Y. Tserkovnyak, T. Moriyama and J.Q. Xiao,
*Tunnel-barrier-enhanced dc voltage signals induced by magnetization dynamics in magnetic tunnel junctions*, Phys. Rev. B**78**, 020401(R) (2008). [PDF]

- X. J. Wang, H. Zou, and Y. Ji,
*Spin transfer torque switching of cobalt nanoparticles*, Appl. Phys. Lett.**93**, 162501 (2008).

- T. Moriyama, R. Cao, J. Q. Xiao, J. Lu, X. R. Wang, Q. Wen and H. W. Zhang,
*Magnetization reversal by microwave in magnetic tunnel junctions*, J. Appl. Phys.**103**, 07A906 (2008).

- W.G. Wang, C. Ni, A. Rumaiz, Y. Wang, X. Fan, T. Moriyama, R. Cao, Q.Y. Wen, H.W. Zhang and J.Q. Xiao,
*Real-time evolution of tunneling magnetoresistance during annealing in CoFeB/MgO/CoFeB magnetic tunnel junctions*, Appl. Phys. Lett.**92**, 152501 (2008).

- R. L. Dragomirova, L. P. Zarbo, and B. K. Nikolic,
*Spin and charge shot noise in mesoscopic spin Hall systems*, EPL (Europhysics Letters)**84**, 37004 (2008). [PDF]

## 2007

- T. Moriyama, R. Cao, J. Q. Xiao, J. Lu, X. R. Wang, Q. Wen and H. W. Zhang,
*Microwave-assisted magnetization switching of NiFe in magnetic tunnel junctions*, Appl. Phys. Lett.**90**, 152503 (2007).

## Ph.D. Theses

- Lubna Shah,
*New materials and functionality in spintronic devices*, 2010 [Adviser: John Q. Xiao]. - Xin Fan,
*Magnetic dynamics in nanostructures*, 2010 [Adviser: John Q. Xiao]. - Arif Ozbay,
*Noise and transport studies in spin valve structures*, 2009 [Adviser: Edmund R. Nowak]. - Gokce (Aisha) Cehreli,
*Current and resistance fluctuations in magnetic tunnel junctions*, 2009 [Adviser: Edmund R. Nowak]. - Rong Cao, 2009,
*Spin dynamics in magnetic thin films and electromagnetic properties of metamaterials*, 2009 [Adviser: John Q. Xiao]. - Ralitsa L. Dragomirova,
*Spin-dependent shot noise in semiconductor and graphene nanostructures*, 2009 [Adviser: Branislav K. Nikolic]. - Weigang Wang,
*Spin-dependent transport in magnetic tunnel junctions and diluted magnetic semiconductors*, 2008 [Adviser: John Q. Xiao] - Takahiro Moriyama,
*Nonlocal and local magnetization dynamics excited by a RF magnetic field in magnetic multilayers*, 2008 [Adviser: John Q. Xiao].