Sushanta Dattagupta
PhD:
Physics (St.John's / Brookhaven National Laboratory, 1973/74) FNA, FNASc, FASc, FTWAS
Area of Interest:
Condensed Matter Physics (Theory)
Email ID:
sushantad
Research Interest:
Non-equilibrium Statistical Mechanics, Dissipative Quantum Systems, Nanomaterials, Fluctuation Spectroscopy, Quantum Optics.
Academic Qualification:
- Ph.D. (Physics), Brookhaven National Laboratory, St. John's University, New York, 1973
- M.Sc. (Physics), Calcutta University, 1967
- B.Sc.(Physics Honours), Calcutta University, 1965
Positions:
- Lecturer in Physics, Presidency College, Kolkata (1968-69)
- Post-Doctoral Fellow, Carnegie-Mellon University, Pittsburgh (1973-75) & Senior Research
- Associate, University of Alberta (1975-76)
- Scientific Officer, Materials Science Laboratory, Indira Gandhi Centre for Atomic Research, Kalpakkam (1976-81)
- Reader, School of Physics, University of Hyderabad, Hyderabad (1981-86)
- Professor, School of Physical Sciences, JNU, New Delhi (1986-99)
- Dean, School of Physical Sciences, JNU, New Delhi (1987-89 & 1993-95)
- Director, S.N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata (8 Feb. 1999 to 8 Apr, 2005)
- Director, Indian Institute of Science Education and Research (IISER), Kolkata (2006 -)
- Honorary Professor, Jawaharlal Nehru Centre for Advanced Scientific Research (2003 - )
- Honorary Professor, Indian Association for the Cultivation of Science (2005 - )
Awards and Honors:
Professional Honours
- Young Scientist Medal, Indian National Science Academy (1977)
- Alexander von Humboldt Fellowship, tenured at the Institute for Solid State Physics, Juelich, Germany (1984, May-July 1985, December 1987, January-June 1997, 2002 and 2003)
- Research Fellow, Indian National Science Academy (1987-89)
- Associate, International Centre for Theoretical Physics, Trieste, Italy (1985-91) Senior
- Associate, International Centre for Theoretical Physics, Trieste, Italy (1992-1997) Visiting
- Associate, Darwin College, Cambridge University (May-July 1993)
- Bibharani Devi Prize of Calcutta University (2002)
- DAE Raja Ramanna Award of the Jawaharlal Nehru Centre for Advanced Scientific Research (2002)
- Sisir Kumar Mitra Medal and Lecture of the Indian Science News Association (2004)
- Distinguished Lecturership Award for 2005-2006,
- Materials Research Society of India Swamy Atulananda Endowment Award Lecture, Ramakrishna Mission (2005)
- L.A. Meera Memorial Lecture (2005)
- Meghnad Saha Memorial Award of the National Academy of Sciences, Allahabad (2005)
- C.V. Raman Birth Centenary Award, 93rd Indian National Science Congress (2006)
- Visiting Fellow under the Distinguished Scientist Visitors' Programme of the Faculty of Natural Sciences of Ben-Gurion University of the Negev, Beer-Sheva, Israel (2007-2008)
- J. C. Bose Fellowship of the Department of Science & Technology, India (2006-2010)
- Department of Atomic Energy (DAE) C V Raman Award Lecture (2009)
- Indian National Science Academy (INSA) C V Raman Medal (2010)
Fellowship
- Elected Fellow, Indian Academy of Sciences, Bangalore (1992)
- Elected Fellow, Indian National Science Academy, New Delhi (1994)
- Elected Fellow, The National Academy of Sciences, Allahabad (1995)
- Elected Fellow, The Academy of Sciences for the Developing World, (TWAS) (1999)
- Elected Fellow, West Bengal Academy of Science & Technology (2000)
List of Publications:
Publications in International Journals | ||
2010 |
||
101 | Retrieving qubit information despite decoherence; Amnon Aharony, Shmuel Gurvitz, Ora Entin-Wohlman, and Sushanta Dattagupta, Phys. Rev. B 82, 245417 (2010). | |
100 | Modeling of ferroelectric domain imaging by atomic force microscopy; Manas K. Roy, Jaita Paul, and Sushanta Dattagupta, J. Appl. Phys. 108, 064102 (2010). | |
99 | Domain dynamics and fractal growth analysis in thin ferroelectric films; Manas K. Roy, Jaita Paul, and Sushanta Dattagupta, J. Appl. Phys. 108, 014108 (2010). | |
98 | Glucose induced fractal colony pattern of Bacillus thuringiensis; Manas K. Roy, Paromita Banerjee, Tapas K. Sengupta, and Sushanta Dattagupta, J. Theoretical Biology 265, 389 (2010). | |
97 | Role of quantum heat bath and confinement in the low-temperature thermodynamics of cyclotron motion; M. Bandopadhyay and S. Dattagupta, Phy. Rev. E 81, 042102 (2010). | |
96 | Dissipative quantum systems and the heat capacity; Sushanta Dattagupta, Jishad Kumar, S. Sinha, and P.A. Sreeram, Phy. Rev. E 81, 031136 (2010). | |
2009 | ||
95 | Evolution of 180°, 90°, and vortex domains in ferroelectric films; Manas Kumar Roy, Shamik Sarkar, and Sushanta Dattagupta, Appl. Phys. Lett. 95, 192905 ( 2009). | |
94 | Low-temperature thermodynamics in the context of dissipative diamagnetism; Jishad Kumar, P.A. Sreeram, and Sushanta Dattagupta, Phy. Rev. E 79, 021130 (2009). | |
93 | Magnetism in the ordered metallic perovskite compound GdPd3BxC1-x; Abhishek Pandey, Chandan Mazumdar, R. Ranganathan and S. Dattagupta, J. Magnetism and Magnetic Materials 321, 2311 (2009). | |
2008 | ||
92 | Transverse vibrations driven negative thermal expansion in a metallic compound GdPd3B0.25C0.75; Abhishek Pandey, Chandan Mazumdar, R. Ranganathan, S. Tripathi, D. Pandey, and S. Dattagupta, Appl. Phys. Lett. 92, 261913 (2008). | |
91 | Negative temperature coefficient of resistance in a crystalline compound; Abhishek Pandey, Chandan Mazumdar, R. Ranganathan, Molly de Raychaudhury, T. Saha-Dasgupta, Saurabh Tripathi, Dhananjai Pandey, and S. Dattagupta, Europhysics Letters 84, 47007 (2008). | |
90 | Quantum Mechanics under rapidly varying external perturbations; M. Bandopadhyay and S. Dattagupta, Pramana 70, 382 (2008). | |
2007 | ||
89 | Probing Single Jumps of Surface Atoms; G. Vogl, M. Sladecek and S. Dattagupta, Phys. Rev. Lett. 99, 155902 (2007). | |
2006 | ||
88 | Memory in nanomagnetic systems: Superparamagnetism versus spin-glass behavior; M. Bandopadhyay and S. Dattagupta, Phys. Rev. B 74, 214410 (2006). | |
87 | Diffusion Enhancement in a Periodic Potential under High-Frequency Space-Dependent Forcing; M.Bandopadhyay, S. Dattagupta and M. Sanyal, Phys. Rev. E 73, 051108 (2006). | |
86 | Dissipative Diamagnetism - A Case Study for Equilibrium and Nonequilibrium Statistical Mechanics; M. Bandyopadhyay and S. Dattagupta, J. Stat. Phys. 123, 1273 (2006). | |
85 | Landau-Drude Diamagnetism: Fluctuation, Dissipation and Decoherence; M. Bandopadhyay and S. Dattagupta, J. Phys.: Condensed Matter 18, 10029 (2006). | |
2005 | ||
84 | Spin Dynamics in a Dissipative Environment: from Quantal to Classical; J.L. Garcia-Palacios and S. Dattagupta, Phys. Rev. Lett. 95, 190401 (2005). | |
83 | Memory in a magnetic nanoparticle system: Polydispersity and interaction effects; S. Chakraverty, M. Bandyopadhyay, S. Chatterjee, S. Dattagupta, A. Frydman, S. Sengupta, and P. A. Sreeram, Phys. Rev. B 71, 054401 (2005). | |
82 | Line shape of beam deflection of magnetic nanoparticles in a Stern-Gerlach setup; Rajib Kumar Das and Aniruddha Konar and S. Dattagupta, Phys. Rev. B 71, 014442 (2005). | |
2003 | ||
81 | Quantum Treatment of the Anderson-Hasegawa Model in the presence of Superexchange; P.A. Sreeram and M. Mitra and S. Dattagupta, Pramana 61, 601-609 (2003). | |
80 | Dielectric Relaxation in a Deuteron Glass; V. Banerjee and S. Dattagupta, Phys. Rev. B 68, 054202-8 (2003). | |
79 | Polaronic Heat Capacity in the Anderson-Hasegawa Model; M. Mitra and P.A. Sreeram and S. Dattagupta, Phys. Rev. B 67,132406-4 (2003). | |
2002 | ||
78 | Model Quantum Magnet – II. Calculation of NMR Lineshapes; V. Banerjee and S. Dattagupta, Phys. Rev. B 66, 064418 – 064427 (2002). | |
77 | Escape rates in the presence of high frequency perturbations; S. Sarkar and s. Dattagupta, J. Mod.Phys. B 16, 1247 – 1254 (2002). | |
76 | Zeno Blocking of Interplanar Tunneling by Intraplane Inelastic Scattering in Layered Superconductors: A Generalized Spin-Boson Analysis; M. Sanjay Kumar S. Dattagupta and N. Kumar, Physical Review B 65, 134501 – 134508 (2002). | |
75 | Effect of Charge Ordering/Disordering on Raman Line Shape in Manganites; S. Dattagupta and A.K. Sood, Physical Review B 65, 064405 – 064417 (2002). | |
2001 | ||
74 | Magneto-Optic Drift of Ions; R. Ghosh S. Dattagupta and J. Singh, Physical Review A 64, 063403 – 063411 (2001). | |
73 | Dissipationless Decoherence; G. Gangopadhyay, M. Sanjay Kumar and S. Dattagupta, J. Phys.A: Math & Gen. 34, 5487 – 5495 (2001). | |
72 | Model Quantum Magnet I. Effect of Hyperfine Interactions on Phase Diagram and Dynamic Susceptibility; Varsha Banerjee and S. Dattagupta, Physical Review B 64, 024427 – 024437 (2001). | |
71 | Landau Diamagnetism Revisited; S. Dattagupta, A.M. Jayannavar and N. Kumar, Current Science 80, 861 – 863 (2001). | |
2000 | ||
70 | Optical Hall effect; J. Singh, R. Ghosh and S. Dattagupta, Phys. Rev. A 61, No.2, 025402 - 025404 (2000). | |
1999 | ||
69 | Magneto-optic piston effect; S. Dattagupta, R. Ghosh and J. Singh, Physical Review Letters 83, 710 - 713 (1999). | |
1998 | ||
68 | 3d model of strain ordering in steel: II. Relaxational effects; S.K. Ghoshal and S. Dattagupta, Pramana 51, 519 - 538 (1998). | |
67 | 3d model of strain ordering in steel: I. Static effects; S.K. Ghoshal and S. Dattagupta, Pramana 51, 519 - 538 (1998). | |
66 | Dynamic susceptibility of a model quantum glass; V. Banerjee and S. Dattagupta, J. Phys. C 10, 8351-8364(1998). | |
65 | Theory of relaxation of magnetic clusters in a Stern-Gerlach set up; S. Dattagupta and S.D. Mahanti, Phys. Rev. B 57, 10244 - 10247 (1998). | |
64 | Phonon-assisted asymmetric tunneling in a double well potential - consequences for neutron scattering and diffusion; S. Dattagupta and H.R. Schober, Phys. Rev. B 57, 7606 - 7612 (1998). | |
1997 | ||
63 | Landau diamagnetism in a dissipative and confined system; S. Dattagupta and J. Singh, Physical Review letters 79, 961 - 965 (1997). | |
62 | Dielectric relaxation in a proton glass; V. Banerjee and S. Dattagupta, Phase Transitions 62, 233 - 243 (1997). | |
1996 | ||
61 | Stochastic motion of charged particle in a magnetic field II. Quantum Brownian treatment; S. Dattagupta and J. Singh, Pramana 47, 211 - 224 (1996). | |
60 | Stochastic motion of charged particle in a magnetic field I. Classical treatment; J. Singh and S. Dattagupta, Pramana 47, 199 - 210 (1996). | |
1995 | ||
59 | Ferroelasticity in Y-Ba-Cu-O. II. Relaxation effects; S.K. Ghoshal and S. Dattagupta, Phase Transitions 54, 181 - 191 (1995). | |
58 | Hysteresis in a quantum spin model; V. Banerjee, S. Dattagupta and P. Sen, Phys. Rev. E 52, 1436 - 1446 (1995). | |
57 | Ferroelasticity in Y-Ba-Cu-O; S. Dattagupta and S.K. Ghoshal, Phase Transitions 54, 95 - 108 (1995). | |
1994 | ||
56 | Analysis of AC susceptibility data in a quantum spin glass; V. Banerjee and S. Dattagupta, Phys. Rev. B 50, 9942 - 9950 (1994). | |
55 | A stochastic model for transient magnetic fields as observed by perturbed angular distribution of gamma rays; T. Qureshi and S. Dattagupta, Z. Phys. D 31, 135 - 142 (1994). | |
54 | Analysis of spectroscopic data in Kondo systems; T. Qureshi and S. Dattagupta, Phys. Rev. B 49, 12848 - 12859 (1994). | |
53 | Phase ordering dynamics in a gravitational field; S. Puri, N. Parekh and S. Dattagupta, J. Stat. Phys. 75, 839 - 857 (1994). | |
1993 | ||
52 | Spring-defect model of structural phase transition in YBa_2 Cu_3 O_(7−δ); S. Dattagupta and S.K. Ghoshal, Solid State Commns. 88, 547 - 551 (1993). | |
51 | Relaxational dynamics of quantum spin glases; S. Dattagupta, B. Tadic, R. Pirc, and R. Blinc, Phys. Rev. B 47, 8801 - 8808 (1993). | |
50 | Interplay of orientational order and viscoelasticity in supercooled liquids near the glass transition; S. Dattagupta and L.A. Turski, Phys. Rev. E 47, 1222 - 1229 (1993). | |
49 | Quantum diffusion of muons in metals; T. Qureshi and S. Dattagupta, Phys. Rev. B 47, 1092 - 1095 (1993). | |
1992 | ||
48 | Dynamical scaling in anisotropic phase separating systems in a gravitational field; S. Puri, K. Binder and S. Dattagupta, Phys. Rev. B 46, 98 - 107 (1992). | |
47 | The Langevin dynamics of vibrated powders; A. Mehta, R.J. Needs and S. Dattagupta, J. Statistical Physics 68, 1131 - 1141 (1992). | |
46 | Kinetic rate law for a Ø4-model in the order-disorder limit; S. Padlewski and S. Dattagupta, J. Phys. Condensed Matter 4, 4373 - 4386 (1992). | |
1991 | ||
45 | Tunneling in proton glasses: stochastic theory of lineshape; S. Dattagupta, B. Tadic, R. Pirc and R. Blinc, Phys. Rev. B 44, 4387 - 4396 (1991). | |
44 | Rate equation for atomic ordering in meanfield Theory II. general considerations; S. Dattagupta, V. Heine, S. Marais and E. Salje, J. Phys. Condensed Matter 3, 2963 - 2984 (1991). | |
43 | Rate equation for atomic ordering in meanfield theory I. uniform case; S. Dattagupta, V. Heine, S. Marais, and E. Salje, J. Phys. Condensed Matter 3, 2963-2984 (1991). | |
42 | Dynamics of an impurity spin coupled to a spin-boson dissipative system; T. Qureshi and S. Dattagupta, J. Phys. Condensed Matter 3, 1079-1087 (1991). | |
1990 | ||
41 | Relaxation behaviour of biased two-level systems, in metals in the weak-damping limit; T. Qureshi, nd S. Dattagupta, Pramana 35, 579-591 (1990). | |
1989 | ||
40 | The structure factor for neutron scattering from a two-state system in metals; S. Dattagupta, H. Grabert and R. Jung, J. Phys. Condensed Matter 1, 1405 - 1422 (1989). | |
1987 | ||
39 | Mössbauer spectrum for diffusing atoms including fluctuating hyperfine interactions; S. Dattagupta and K. Schroeder, Phys. Rev. B 35, 1525-1546 (1987). | |
1986 | ||
38 | Structure factor for neutron scattering from tunneling systems in metals; H.G. Grabert, S. Linkwitz, S. Dattagupta, and U. Weiss, Europhys. Lett. 2, 631-638 (1986). | |
1985 | ||
37 | Monte-Carlo calculations of switching statistics of a two-mode laser; K.P.N. Murthy with S. Dattagupta, Phys. Rev. A 32, 3481-3489 (1985). | |
36 | Orientational order in liquids - a possible scenario of freezing; S. Dattagupta and L.A. Turski, Phys. Rev. Lett. 54, 2359-2362 (1985). | |
35 | The Boltzmann-Lorentz model of collisional broadening of spectra; S. Dattagupta and L.A. Turski, Phys. Rev. A 32, 1439-1446 (1985). | |
34 | Neutron scattering from a quantum oscillator subject to noise; S. Dattagupta and G. Reiter, Phys. Rev. A 31, 1034-1039 (1985). | |
1984 | ||
33 | Nonequilibrium response of a disordered Ising chain; S. Dattagupta, R. Vaidyanathan and R. Indira, Zeit. Phys., B 57, 319-328 (1984). | |
32 | Relaxation behaviour of single domain magnetic particles; G.S. Agarwal, S. Dattagupta and K.P.N. Murthy, J. Phys. C 17, 6869-6876 (1984). | |
31 | Brownian motion of a quantum system; S. Dattagupta, Phys. Rev. A 30, 1525-1527 (1984). | |
30 | Linear response analysis of Gorsky relaxation of light interstitials in the presence of ordering; S. Dattagupta and R. Ranganathan, J. Phys. F 14, 1417-1429 (1984). | |
1983 | ||
29 | Non-equilibrium susceptibility of superparamagnetic particles; Deepak Kumar and S.Dattagupta, Phys C. 16, 3779-3794 (1983). | |
1982 | ||
28 | Strain ordering in b.c.c. metals and the associated anelasticity II. Effect of random interstitial arrangement; S. Dattagupta, J. Phys. F 12, 1363-1368 (1982). | |
27 | Strain ordering in b.c.c. metals and the associated anelasticity; S. Dattagupta, Radha Balakrishnan and Radha Ranganathan, J. Phys. F 12, 1345-1362 (1982). | |
26 | Stochastic model of muon diffusion in the presence of traps: nonsecular effects on spin depolarization; S. Dattagupta and B. Purniah, Zeit, Phys. B 46, 331-339 (1982). | |
25 | Higher order phase transitions in systems far from equilibrium-bicriticality and tetracriticality in two-mode lasers; G.S. Agarwal and S. Dattagupta, Phys. Rev. A 26, 880-887 (1982). | |
1981 | ||
24 | Model for vibrational relaxation: pure dephasing and depopulation; A.K. Sood and S. Dattagupta, Pramana 17, 315-326 (1981). | |
23 | Generalized M-diffusion model of molecular rotation, calculation of dipole correlation function; S. Dattagupta and A.K. Sood, Zeit. Phys. B 44, 85-89 (1981). | |
22 | Raman study of orientational disorder in potash alum; A.K. Sood, A.K. Arora, S. Dattagupta, and G. Venkataraman, J. Phys. C 14, 5215-5224 (1981). | |
21 | Gorsky relaxation in the presence of traps; V. Balakrishnan and S. Dattagupta, Zeit. Phys. B 42, 13-21 (1981). | |
1980 | ||
20 | Signal-to-noise enhancement of lock-in amplifiers; K. Neelakantan, S. Dattagupta and K.P. Rajappan, Rev. Sci. Instn. 51, 250-251 (1980). | |
1979 | ||
19 | Analysis of ultrasonic anomaly in V3 Si; S. Dattagupta and G. Venkataraman, Pramana 13, 205-218 (1979). | |
18 | Theory of ultrasonic scattering by grains in polycrystals; R. Ranganathan and S. Dattagupta, Phys. Stat. Sol.(a) 54, 537-548 (1979). | |
17 | Model for infrared and Raman Studies of molecular rotations in liquids and gases; S. Dattagupta and A.K. Sood, Pramana 13, 423-445 (1979). | |
1978 | ||
16 | Analysis of signal-to-noise enhancement of box-car averagers; S. Dattagupta and K. Neelakantan, Pramana 11, 295-306 (1978). | |
15 | A Stochastic theory of anelastic creep; V. Balakrishnan, S. Dattagupta and G. Venkataraman, Phil. Mag. 37, 65-84 (1978). | |
1977 | ||
14 | Breakdown of the 'white-noise approximation' in the Mössbauer relaxation spectra: the case of Cs2 NaYbCl8; S. Dattagupta, G.K. Shenoy, B.D. Dunlap, and L. Asch, Phys. Rev. B 16, 3893-3902 (1977). | |
13 | Effect of collisions on spectral lines in gases; S. Dattagupta, Pramana 9, 203-221 (1977). | |
12 | Stochastic model of classical bath variables and its influence on lineshape expressions; S. Dattagupta, Phys. Rev. B 16, 158-163 (1977). | |
11 | Global phase diagram for a three-component model; D. Furman, S. Dattagupta and R.B. Griffiths, Phys. Rev. 15, 441-464 (1977). | |
10 | Self-Interstitials trapped at Co impurities in electron - irradiated Al: theoretical study of the static and dynamic quadrupolar interactions on Mössbauer lineshape; S. Dattagupta, Sol. St. Commns. 24, 19-22 (1977). | |
1976 | ||
9 | Calculating Mössbauer-paramagnetic relaxation spectra without the "White-noise approximation"; G.K. Shenoy, B.D. Dunlap, S. Dattagupta, and L. Asch, Phys. Rev. Lett. 37, 539-542 (1976). | |
8 | Spin-relaxation spectra of Γ4 quartet; G.K. Shenoy, B.D. Dunlap, S. Dattagupta, and L. Asch, Jour. de Phys. Colloq. C 6, 85-87 (1976). | |
7 | Effect of molecular motions in liquids on Mössbauer relaxation spectra; S. Dattagupta, Phys. Rev. B 14, 1329-1332 (1976). | |
6 | Stochastic theory of spin relaxations in liquids; S. Dattagupta and M. Blume, Phys. Rev. A 14, 480-494 (1976). | |
5 | Study by Mössbauer effect of diffusion of interstitials (C or N) in austenite, a theoretical treatment; S. Dattagupta, Phil. Mag. 33, 59 (1976). | |
1975 | ||
4 | Effects of off-diagonal hyperfine interaction on Mössbauer relaxation spectra; S. Dattagupta, Phys. Rev. B 12, 3584 - 3595 (1975). | |
3 | Effect of nuclear motion on Mössbauer relaxation spectra; S. Dattagupta, Phys. Rev. B 12, 47-57 (1975). | |
1974 | ||
2 | Stochastic theory of lineshape, II. Nonsecular effects in the EPR spectrum of CO2- in calcite; S. Dattagupta and M. Blume, Phys. Rev. B 10, 4551-4559 (1974). | |
1 | Stochastic theory of line shape, I. Nonsecular effects in the strong collision model; S. Dattagupta and M. Blume, Phys. Rev. B 10, 4540-4550 (1974). |
Categories: Professor | Physical Sciences