Browsing Proceedings papers by Author "PADALIA, BD"

Now showing items 1-15 of 15

Anomalous magnetoresistance in antiferromagnetic polycrystalline materials R2Ni3Si5 (R equals rare earth)

MAZUMDAR, C; NIGAM, AK; NAGARAJAN, R; GUPTA, LC; CHANDRA, G; PADALIA, BD; GODART, C (AMER INST PHYSICS, 1997)

Magnetoresistance (MR) studies on polycrystalline R2Ni3Si5, (R=Y, rare earth) which order antiferromagnetically at low temperatures, are reported here. MR of the Nd, Sm, and Tb members of the series exhibit positive giant ...
EXAFS studies of electron-doped nd(1.82-z)m(z)ce(0.18)cuo(y) - m=ba, sr or ca, z-less-than-or-equal-to-0.18

PADALIA, BD; SINGH, OG; PRAKASH, O; GURMAN, SJ; AISS, JC (ELSEVIER SCIENCE BV, 1995)

We describe EXAFS studies of electron-doped superconductors based on neodymium cuprate doped with cerium. The mechanism for observed changes in the transition temperature on co-doping with divalent cations is investigated ...
Magnetic-properties of 2 new compounds - GD2NI3SI5 and SM2NI3SI5

MAZUMDAR, C; NAGARAJAN, R; GUPTA, LC; VIJAYARAGHAVAN, R; GODART, C; PADALIA, BD (AMER INST PHYSICS, 1994)

The formation of two new materials, SM2Ni3Si5 and Gd2Ni3Si5, of the rare-earth series R2M3Si5 (R denotes rare earth and Y) and their magnetic and transport properties are reported here. These materials crystallize in the ...
Magnetic-properties of 2 new compounds - pr2ni3si5 and ho2ni3si5

MASUMDAR, C; NAGARAJAN, R; GUPTA, LC; VIJAYARAGHAVAN, R; GODART, C; PADALIA, BD (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1994)

Formation of two more new materials, Pr2Ni3Si5 and Ho2Ni3Si5, of the series, R(2)Ni(3)Si(5) (R = rare earth and Y) and their magnetic properties Tire reported here. These materials crystallize in the orthorhombic U2Co3Si5-type ...
Magnetic-properties of re(2)ni(3)si(5) (re=nd, tb and dy)

MAZUMDAR, C; NAGARAJAN, R; GUPTA, LC; PADALIA, BD; VIJAYARAGHAVAN, R (ELSEVIER SCIENCE BV, 1995)

Magnetic properties of Dy2Ni3Si5 and the two new materials Nd2Ni3Si5 and Tb2Ni3Si5 are presented. Both Nd2Ni3Si5 and Dy2Ni3Si5 order antiferromagnetically with T-N approximate to 9.5 K. Tb2Ni3Si5 shows two distinct magnetic ...
Magnetic-susceptibility and electrical-resistivity of new equiatomic ternary cerium based compounds - Cerhin and Cecuin

MALIK, SK; ADROJA, DT; PADALIA, BD; VIJAYARAGHAVAN, R (ELSEVIER SCIENCE BV, 1990)
New superconducting and magnetic R-T-B-C systems (r=rare earth t=ni, pd)

GUPTA, LC; NAGARAJAN, R; HOSSAIN, Z; MAZUMDAR, C; DHAR, SK; GODART, C; LEVYCLEMENT, C; PADALIA, BD; VIJAYARAGHAVAN, R (ELSEVIER SCIENCE BV, 1995)

Our discovery of superconductivity in Y-Ni-B-C system (T-c similar to 12 K) has opened up a new field in superconductivity and magnetism in intermetallics. A brief description of the discovery of these new borocarbide ...
Recent trends in X-ray absorption spectroscopy with synchrotron radiation: an overview

PADALIA, BD (NAROSA PUBLISHING HOUSE, 1998)
Resistivity and L(III)-edge absorption studies in valence fluctuation system Ce2Ni3Si5

MAZUMDAR, C; NAGARAJAN, R; GODART, C; GUPTA, LC; PADALIA, BD; VIJAYARAGHAVAN, R (AMER INST PHYSICS, 1996)

From our x-ray (L(III)-edge) absorption (XAS) investigations of Ce2Ni3Si5, we show that Ce-valence is temperature dependent; it is 3.07 and 3.11 at 280 and 8 K, respectively. We also report on our resistivity measurements ...
Resistivity anomalies in EU-based valence fluctuating systems

PATIL, S; NAGARAJAN, R; GUPTA, LC; PADALIA, BD; VIJAYARAGHAVAN, R (ELSEVIER SCIENCE BV, 1990)
Study of upper critical field in superconducting borocarbides RNi(2)B(2)C (R=Y,Ho,Er,Tm)

MAZUMDAR, C; HOSSAIN, Z; RADHA, S; NIGAM, AK; NAGARAJAN, R; GUPTA, LC; GODART, C; PADALIA, BD; CHANDRA, G; VIJAYARAGHAVAN, R (ELSEVIER SCIENCE BV, 1996)

We have determined upper critical field, H-c2(T), from resistivity measurements in the borocarbide superconductors, RNi(2)B(2)C (R=Y, Ho, Er, Tm). The H-c2(T) of these materials show a positive curvature which is unlike ...
Superconductivity and magnetism in quaternary-F (F-Y or F-elements) transition-metal borocarbides and magnetic-properties of RNI(4)B (R-Y or RARE-EARTH)

NAGARAJAN, R; GUPTA, LC; MAZUMDAR, C; HOSSAIN, Z; DHAR, SH; GODART, C; PADALIA, BD; VIJAYARAGHAVAN, R (ELSEVIER SCIENCE SA LAUSANNE, 1995)

Our recent pioneering discovery of bulk superconductivity (SC) in Y-Ni-B-C at an elevated temperature (T-c approximate to 12 K) has triggered intense research activity in borocarbide materials containing 4f and 5f elements. ...
Superconductivity at 12-K IN Y-NI-B system

MAZUMDAR, C; NAGARAJAN, R; GODART, C; GUPTA, LC; LATROCHE, M; DHAR, SK; LEVYCLEMENT, C; PADALIA, BD; VIJAYARAGHAVAN, R (ELSEVIER SCIENCE BV, 1994)

Sharp drop in resistivity and diamagnetic susceptibility below 12 K clearly indicate a superconducting (SC) transition in the system Y-Ni-B (nominal composition: YNi4B). Possibility of a magnetic phase transition at this ...
Transport, magnetic, and Sn-119 Mossbauer studies on magnetically ordered valence fluctuating compound SmRuSn3

MAZUMDAR, C; HOSSAIN, Z; NAGARAJAN, R; GODART, C; DHAR, SK; GUPTA, LC; PADALIA, BD; VIJAYARAGHAVAN, R (AMER INST PHYSICS, 1996)

SmRuSn3 is a unique compound among the known Sm-based valence fluctuation (VF) systems. Its crystallographic structure has two inequivalent Sm sites and Sm ions at only one of them are in VF state while the Sm ions in the ...
XANES studies of the ND-SR-CE-CU-O superconducting system

PADALIA, BD; SINGH, OG; GURMAN, SJ; SUBA, K; PRAKASH, O (ELSEVIER SCIENCE BV, 1995)

We describe XANES studies of electron-doped superconductors based on neodymium cuprate doped with cerium. The mechanism for observed changes in the transition temperature on co-doping with divalent Sr is investigated using ...

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