[Books & Chapters][Journal Articles]

Pritiraj Mohanty Professor Boston University 590 Commonwealth Ave. Boston, MA 02215 Office: 6173539297 Fax: 6173539393 Email: mohantyphysics. bu http://nano.bu.edu/

Biography

RESEARCH INTERESTS:

Our research themes are focused on some of the important problems of our times, which range from the realization of “real-world” macroscopic quantum systems to developing novel nanoscale devices for the ultrasensitive detection of cancer.

We use cutting-edge techniques to create three-dimensional suspended mechanical structures on sub-micron and nanometer scale. These nanomechanical devices with appropriate measurement techniques enable detection of forces and torques with unprecedented sensitivity. Typical forces of interest are fundamental quantum forces, or biological forces arising due to the binding of an antibody-antigen pair. Recently, we have been able to detect torque generated by electron spin flip at a level smaller than the torque created by the unwinding of a DNA.

Books & Chapters

1.) P. Mohanty, "Quantum Nanomechanics," Applications of Nonlinear Dynamics-Model and Design of Complex Systems, 2009

Journal Articles

25.) D. N. Guerra, A. R. Bulsara, W. L. Ditto, S. Sinha, K. Murali, and P. Mohanty, "A noise-assisted reprogrammable nanomechanical logic gate," Nano Letters, Vol. 10, 10 March 2010, pp. 1168-1171

24.) T. Dunn, D. N. Guerra, and P. Mohanty, "Noise color and asymmetry in stochastic resonance with silicon nanomechanical resonators," European Physical Journal B, Vol. 69, 18 March 2009, pp. 5-10

23.) D. N. Guerra, T. Dunn, and P. Mohanty, "Signal amplification by 1/f noise in silicon-based nanomechanical resonators," Nano Letters, Vol. 9, No. 9, 2009, pp. 3096-3099

22.) J. Dorignac, A. Gaidarzhy, and P. Mohanty, "Arbitrary distribution and nonlinear modal interaction in coupled nanomechanical resonators," Journal of Applied Physics, Vol. 105, 2009, pp. 103520

21.) J. Wenzler, T. Dunn, S. Erramilli, and P. Mohanty, "Nanoelectromechanical system-integrated detector with silicon nanomechanical resonator and silicon nanochannel field effect transistor," Journal of Applied Physics, 2009, pp. 094308

20.) G. Zolfagharkhani, A. Gaidarzhy, P. Degiovanni, S. Kettemann, P. Fulde, and P. Mohanty, "Nanomechanical detection of itinerant electron spin flip," Nature Nanotechnology, Vol. 3, December 2008, pp. 720-723

19.) Y. Chen, X. Wang, M. K. Hong, S. Erramilli, and P. Mohanty, "Surface-modified silicon nano-channel for urea sensing," Sensors and Actuators B, Vol. 133, 8 April 2008, pp. 593-598

18.) M. Imboden, and P. Mohanty, "Evidence of universality in the dynamical response of nanomechanical ultra-nanocrystalline diamond resonators at millikelvin temperatures," arxiv, No. 0803.1669, 2008

17.) J. Dorignac, A. Gaidarzhy, and P. Mohanty, "Response spectrum of coupled nanomechanical resonators," Journal of Applied Physics, Vol. 104, 2008, pp. 073532

16.) J. Wenzler, and P. Mohanty, "Measurement of Aharonov-Bohm oscillations in mesoscopic metallic rings in the presence of a high-frequency electromagnetic field," Physical Review B, Vol. 77, 2008, pp. 121102(R)

15.) D. N. Guerra, M. Imboden, and P. Mohanty, "Electrostatically actuated silicon-based nanomechanical switch at room temperature," Applied Physics Letters, Vol. 93, 2008, pp. 033515

14.) X. Wang, Y. Chen, K. A. Gibney, S. Erramilli, and P. Mohanty, "Silicon-based nanochemical glucose sensor," Applied Physics Letters, Vol. 92, 2008, pp. 013903

13.) S. Shim, M. Imboden, and P. Mohanty, "Synchronized oscillation in coupled nanomechanical oscillators," Science, Vol. 316, 6 April 2007, pp. 95-99

12.) M. Imboden, P. Mohanty, A. Gaidarzhy, J. Rankin, and B. W. Sheldon, "Scaling of dissipation in megahertz-range micromechanical diamond oscillators," Applied Physics Letters, Vol. 90, 23 April 2007, pp. 173502

11.) A. Gaidarzhy, M. Imboden, P. Mohanty, J. Rankin, and B. W. Sheldon, "High quality factor gigahertz frequencies in nanomechanical diamond resonators," Applied Physics Letters, Vol. 91, 2007, pp. 203503

10.) Y. Chen, X. Wang, M. K. Hong, S. Erramilli, P. Mohanty, and C. Rosenberg, "Nanoscale field effect transistor for biomolecular signal amplification," Applied Physics Letters, Vol. 91, 2007, pp. 243511

9.) S. Shim, J. S. Chun, S. W. Kang, S. W. Cho, S. W. Cho, Y. D. Park, P. Mohanty, N. Kim, and J. Kim, "Micromechanical resonators fabricated from lattice-matched and etch-selective GaAs/InGap/GaAs heterostructures," Applied Physics Letters, Vol. 91, 2007, pp. 133505

8.) L. Saminadayar, P. Mohanty, R. A. Webb, P. Degiovanni, and C. Bauerle, "Electron coherence at low temperatures: the role of magnetic impurities," Physica E, Vol. 40, 2007, pp. 12-24

7.) Y. Chen, X. Wang, S. Erramilli, P. Mohanty, and A. Kalinowski, "Silicon-based nanoelectric field-effect pH sensor with local gate control," Applied Physics Letters, Vol. 89, 2006, pp. 223512

6.) J. Dorignac, A. Kalinowski, S. Erramilli, and P. Mohanty, "Dynamical Response of Nanomechanical Oscillators in Immiscible Viscous Fluid for In Vitro Biomolecular Recognition," Physical Review Letters, Vol. 96, 2006, pp. 186105

5.) R. L. Badzey, and P. Mohanty, "Coherent signal amplification in bistable nanomechanical oscillators by stochastic resonance," Nature, Vol. 437, 13 October 2005, pp. 995-998

4.) A. Gaidarzhy, G. Zolfagharkhani, R. L. Badzey, and P. Mohanty, "Evidence for Quantized Displacement in Macroscopic Nanomechanical Oscillators," Physical Review Letters, Vol. 94, 28 January 2005, pp. 030402

3.) R. L. Badzey, G. Zolfagharkhani, A. Gaidarzhy, and P. Mohanty, "Temperature dependence of a nanomechanical switch," Applied Physics Letters, Vol. 86, 2005, pp. 023106

2.) G. Zolfagharkhani, A. Gaidarzhy, S. Shim, R. L. Badzey, and P. Mohanty, "Quantum friction in nanomechanical oscillators at millikelvin temperatures," Physical Review B, Vol. 72, 2005, pp. 224101

1.) A. Gaidarzhy, G. Zolfagharkhani, R. L. Badzey, and P. Mohanty, "Spectral response of a gigahertz-range nanomechanical oscillator," Applied Physics Letters, Vol. 86, 2005, pp. 254103