Faculty Information-V. Sankaranarayanan

Name	V. Sankaranarayanan (Ph.D, IIT Madras, 1984)
Designation	Professor
Group	Low Temperature Physics
Phone	+91-44-2257 4873
Room	HSB 114
Research Interests	Low Temperature Physics, Super Conductivity
Email	vsn at physics.iitm.ac.in
Personal Home Page

Faculty List Physics Home

Recent Publications

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Kinetics of hydrogen absorption in Ho_1-xMm_xCo₂ alloys
J.Alloys Compounds In Press (available online).

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Hydrogen-induced and A-site substitution dependent structural properties of AB2 -type (Ho_1-xA_x)Co₂-Hydrogen system (A = Mm and Ti). J. Alloys Compounds In Press (available online).

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Structural and hydriding-dehydriding properties of Ho_1-xTi_xCo₂ alloys
Materials Science and Engineering A , In Press (available online)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Hydrogen absorption and desorption properties of Ho_1-xMm_xCo₂alloys
Int. J. Hydrogen Energy 32, 2480-2487 (2007)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Thermodynamic and hydrogen-induced structural properties of Ho_1-xMm_xCo₂-hydrides
J. Phys. D: Appl. Phys. 40 1183-1189 (2007)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Diffusion of hydrogen in cubic Laves phase Ho_1-xMm_xCo₂ (x = 0, 0.2 and 0.4) alloys.
Int. J. Hydrogen Energy32, 2965-2970 (2007)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Hydrogen-induced and A-site substitution dependent structural properties of AB₂-type(Ho_1-xA_x)Co₂-Hydrogen system (A = Mm and Ti)
J. Alloys Compounds In Press (available online)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Structural and hydriding-dehydriding properties of Ho_1-xT_ixCo₂ alloys
Materials Science and Engineering A, In Press (available online)

G. Srinivas,V. Sankaranarayanan and S. Ramaprabhu
Hydrogen absorption and desorption properties of Ho_1-xMm_xCo₂ alloys,
Int.J.Hydrogen Energy,32, 2480-2487(2007)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Thermodynamic and hydrogen-induced structural properties of Ho_1-xMm_xCo₂-hydrides.
J. Phys. D: Appl. Phys40, 1183-1189 (2007)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Diffusion of hydrogen in cubic Laves phase Ho_1-xMm_xCo₂ (x = 0, 0.2 and 0.4) alloys
Int. J. Hydrogen Energy32, 2965-2970 (2007)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Influence of hydrogen absorption on structural and electrical transport properties of Ho_1-xMm_xCo₂ alloys
J. Appl. Phys.102, Issue 6, 063706(1-8) (2007)

G. Srinivas, V. Sankaranarayanan and S. Ramaprabhu
Temperature and concentration dependent electrical resistivity of Ho_1-xTi_xCo₂-hydrogen system.
Solid State Sciences9 , 973-979 (2007)

R. Nirmala, V. Sankaranarayanan, K. Sethupathi, A. V. Morozkin, Amish G. Joshi and S. K. Malik
1.Magnetic and Electrical transport properties of D_yxGd_5-xSi₂Ge₂ (x = 0.0, 1.5, 2.5, 3.0, 3.5, 4.5 and 5.0) Compounds
J.l Magnetism and Magnetic Materials 309, 212 (2007)

C. Krishnamoorthy, K. Sethupathi and V. Sankaranarayanan
Synthesis of single phase Ce doped nanocrystalline LaMnO₃
Materials Letters61, 3254-3257, (2007)

C. Krishnamoorthy, K. Sethupathi, V. Sankaranarayanan, R. Nirmala and S.K. Malik
Magnetic and magnetotransport properties of Ce doped nanocrystalline LaMnO₃.
J.Alloys and Compounds 438, 1-7 (2007)

C. Krishnamoorthy, K. Sethupathi, V. Sankaranarayanan, R. Nirmala and S.K. Malik
Magnetic and magnetoresistivity properties of nanocrystalline Nd_0.7Sr_0.3MnO₃.
Journal of Magnetism and Magnetic Materials 308,28-34(2007)
C. Krishnamoorthy, K. Sethupathi, V. Sankaranarayanan, R. Nirmala and S. K. Malik
Particle size effect on magnetotransport properties of nanocrystalline Nd_0.7Sr_0.3Mn_O3
J. Nanoparticle Research DOI 10.1007/s11051-006-9101-x (2006)

N. Rama, K. Mohan Kant, V. Sankaranarayanan and M.S. Ramachandra Rao
Effect of Ar annealing on the magnetic and transport properties of Pr_0.7Sr_0.3MnO₃.
Journal of Magnetisnm and Magnetic Materials 303, e342-e346 (2006)
N. Rama, V. Sankaranarayanan, and M. S. Ramachandra Rao
Role of double exchange interaction on the magnetic and electrical properties of Pr_0.8Sr_0.2MnO₃ ferromagnetic insulating manganite
Journal of Applied Physics, 99,08Q315-1 to 08Q315_1-3 (2006).
R. Venkatesh, R. Nirmala, G. Rangarajan, S. K. Malik, and V. Sankaranarayanan
Study of the magnetic behavior of single-crystalline Nd_0.5Sr_0.5MnO₃
Journal of Applied Physics, 99,08Q311-1 to 08Q311_1-3 (2006)
C. Krishnamoorthy, K. Sethupathi, V. Sankaranarayanan, R. Nirmala, and S. K. Malik
Electrical and magnetotransport properties of Nd-based manganite nanoparticles
Journal of Applied Physics, 99,08Q310-1 to 08Q310_1-3 (2006).
R. Nirmala, V. Sankaranarayanan, K. Sethupathi, A.V. Morozkin, Y. Yamamoto and H. Hori
Electrical transport properties of Dy_0.5Gd_4.5Si₂Ge₂
Physica B 373, 120-123 (2006)
N. Rama, M. Opel, V. Sankaranarayanan, R. Gross, S.B. Ogale, T. Venkatesan, and M.S. Ramachandra Rao
A-site dependent percolative thermopower and Griffiths phase in Pr_0.7-xHo_xSr_0.3MnO₃ (x = 0.0, 0.04, 0.08 and 0.1)
Journal of Applied Physics, 97,10H713-1 to 10H713-3 (2005).
R. Nirmala, V. Sankaranarayanan, K. Sethupathi A. V. Morozkin, Q. Cai and Z. Chu, J. B. Yang, W. B. Yelon, S. K. Malik
Magnetization and neutron diffraction studies on Dy₅Si₂Ge₂
Journal of Applied Physics, 97,10M314 (2005).
N. Rama, V. Sankaranarayanan and M. S. Ramachandra Rao
Effect of A-site disorder on the percolative transport of Pr_0.7-yHo_ySr_0.3MnO₃, (y=0.0, 0.04, 0.08 and 0.1)
Journal of Magnetisnm and Magnetic Materials 292, 468-475 (2005).
N. Rama, M. S. Ramachandra Rao, V. Sankaranarayanan, P. Majewski, S. Gepraegs, M. Opel and R. Gross
A-site-disorder-dependent percolative transport and Griffiths phase in doped manganites
Physical Review B 70, 224424-1 to 224424-5 (2004).
N. Rama, J.B. Philipp, M. Opel, A. Erb, V. Sankaranarayanan, R. Gross, and M.S. Ramachandra Rao
Effect of rare earth ion substitution on the magnetic and transport properties of Pr_0.7RE_0.04Sr_0.26MnO₃ (RE = Er3+, Tb3+, and Ho3+)
European Physics Journal B 38, 553-557 (2004).
N. Rama, J.B. Philipp, M. Opel, K. Chandrasekaran, V. Sankaranarayanan, R. Gross, and M.S. Ramachandra Rao
Study of magnetic properties of A₂B'NbO₆ (A=Ba,Sr,BaSr; and B'=Fe and Mn) double perovskites
J Journal of Applied Physics. 95, 7528-7530 (2004).
R. Nirmala, V. Sankaranarayanan, K. Sethupathi. G. Rangarajan, A.V. Morozkin, C. Kundaliya Darshan S.K. Malik
Magnetism of R₂Ti₃Ge₄(R=Sc, Gd, Tb,, Dy, Ho and Er)
Journal of Applied Physics, 95, 7079-7081 (2004).
R. Nirmala, V. Sankaranarayanan, K. Sethupathi, T. Geethakumary, M.C. Valsakumar, Y. Hariharan, A.V. Morozkin
Magnetism in RMn₄Al₈ (R = Sc; Sm, Tb, Dy and Ho) compounds: possible role of Mn
Physica B 329-333, 673-74 (2003)
R. Nirmala, V. Sankaranarayanan, K. Sethupathi, A. V. Morozkin, Z. Chu, W. B. Yelon, S. K. Malik, Y. Yamamoto and H. Hori
Magnetic properties of Er₂Mn₃Si₅
Journal of Alloys and Compounds, 347 9-13 (2002)
R. Nirmala, V. Sankaranarayanan, K. Sethupathi, A. V. Morozkin, T. Geethakumary and Y. Hariharan
Electrical transport and magnetic ordering in R₂Ti₃Ge₄ (R = Dy, Ho and Er) compounds
Pramana – Journal of Physics 58 1101-1104 (2002)
R. Nirmala, A. V. Morozkin, M. Hofmann, V. Sankaranarayanan, K. Sethupathi, Y. Yamamoto and H. Hori
Magnetic Structure of Tb₂Mn₃Si₅
Journal of Alloys and Compounds 335 43-47 (2002)
R. Nirmala, V. Sankaranarayanan, K. Sethupathi and A.V. Morozkin
New materials for Magnetic refrigerator Applications
Key Engineering Materials 227 113-118 (2002)