Tata Institute of Fundamental Research

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19912026

most citedSciPy 1.0--Fundamental Algorithms for Scientific Computing in Python

40.2k citations

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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 2003 · cond-mat.str-elShow all

15 papers · 2 filters

cond-mat.str-el2003★ 209 cited

The role of critical current on point contact Andreev Reflection spectrum between a normal metal and a superconductor

G. Sheet, S. Mukhopadhyay, P. Raychaudhuri

The point contact spectrum between a normal metal and a superconductor often shows unexpected sharp dips in the conductance at voltage values larger than the superconducting energy…

cond-mat.str-el2003★ 35 cited

Identifying the Background Signal in ARPES of High Temperature Superconductors

A. Kaminski, S. Rosenkranz, H. M. Fretwell +9

One of the interesting features of the photoemission spectra of the high temperature cuprate superconductors is the presence of a large signal (referred to as the "background'') in…

cond-mat.str-el2003★ 29 cited

Magnetic Ordering and Superconductivity in the RE $_{2}$ Ir $_{3}$ Ge $_{5}$ (RE = Y, La-Tm, Lu) System

Yogesh Singh

We find that the compounds for RE = Y, La-Dy, crystallize in the tetragonal Ibam (U $_{2}$ Co $_{3}$ Si $_{5}$ type) structure whereas the compounds for RE = Er-Lu, crystallize in a new ortho…

cond-mat.str-el2003★ 524 cited

The Physics Behind High-Temperature Superconducting Cuprates: The "Plain Vanilla" Version Of RVB

P. W. Anderson, P. A. Lee, M. Randeria +3

One of the first theoretical proposals for understanding high temperature superconductivity in the cuprates was Anderson's RVB theory using a Gutzwiller projected BCS wave function…

cond-mat.str-el2003★ 7 cited

Structural and magnetic properties of MSr2Y1.5Ce0.5Cu2Oz (M-1222) compounds with M = Fe and Co

V. P. S. Awana, Anurag Gupta, H. Kishan +5

MSr2Y1.5Ce0.5Cu2Oz (M-1222) compounds, with M = Fe and Co, have been synthesized through a solid-state reaction route. Both compounds crystallize in a tetragonal structure (space g…

cond-mat.str-el2003★ 46 cited

Photoemission and x-ray absorption spectroscopy study of electron-doped colossal magnetoresistance manganite: La0.7Ce0.3MnO3 film

S. W. Han, J. -S. Kang, K. H. Kim +11

The electronic structure of La0.7Ce0.3MnO3 (LCeMO) thin film has been investigated using photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). The Ce 3d core-le…

cond-mat.str-el2003★ 75 cited

Inhomogeneous metallic phase upon disordering a two dimensional Mott insulator

Dariush Heidarian, Nandini Trivedi

We find that isoelectronic disorder destroys the spectral gap in a Mott-Hubbard insulator in 2D leading, most unexpectedly, to a new metallic phase. This phase is spatially inhomog…

cond-mat.str-el2003★ 82 cited

Magnetic behaviour of quasi-one-dimensional oxides, Ca $_{3}$ Co $_{(} 1 + x)$ Mn $_{1 - x}$ O $_{6}$

S. Rayaprol, Kausik Sengupta, E. V. Sampathkumaran

The results of ac and dc magnetization and heat capacity measurements on the oxides, Ca $_{3}$ Co $_{1 + x}$ Mn $_{1 - x}$ O $_{6}$ , forming in a K $_{4}$ CdCl $_{6}$ -derived rhombohedral quasi-one-dime…

cond-mat.str-el2003★ 43 cited

Enhanced electrical resistivity before Néel order in the metals, RCuAs $_{2}$ (R= Sm, Gd, Tb and Dy

E. V. Sampathkumaran, Kausik Sengupta, S. Rayaprol +3

We report an unusual temperature (T) dependent electrical resistivity( $ρ$ ) behavior in a class of ternary intermetallic compounds of the type RCuAs $_{2}$ (R= Rare-earths). For some r…

cond-mat.str-el2003★ 17 cited

Long range magnetic ordering in a spin-chain compound, Ca $_{3}$ CuMnO $_{6}$ , with multiple bond distances

Kausik Sengupta, S. Rayaprol, K. K. Iyer +1

The results of ac and dc magnetization and heat capacity measurements as a function of temperature (T = 1.8 to 300 K) are reported for a quasi-one-dimensional compound, Ca $_{3}$ CuMnO…

cond-mat.str-el2003★ 59 cited

Magnetic frustration in a stoichiometric spin-chain compound, Ca $_{3}$ CoIrO $_{6}$

S. Rayaprol, Kausik Sengupta, E. V. Sampathkumaran

The temperature dependent ac and dc magnetization and heat capacity data of Ca $_{3}$ CoIrO $_{6}$ , a spin-chain compound crystallizing in a K $_{4}$ CdCl $_{6}$ -derived rhombohedral structure,…

cond-mat.str-el2003★ 24 cited

Antiferromagnetic ordering in the Kondo lattice system Yb $_{2}$ Fe $_{3}$ Si $_{5}$

Yogesh Singh, S. Ramakrishnan, Z. Hossain +1

Compounds belonging to the R $_{2}$ Fe $_{3}$ Si $_{5}$ series exhibit unusual superconducting and magnetic properties. Although a number of studies have been made on the first reentrant anti…

cond-mat.str-el2003★ 8 cited

Magnetic ordering of Mn sublattice, dense Kondo lattice behavior of Ce in (RPd3)8Mn (R = La, Ce)

Surjeet Singh, S. K. Dhar

We have synthesized two new interstitial compounds (RPd3)8Mn (R = La and Ce). The Mn ions present in "dilute" concentration of just 3 molar percent form a sublattice with an unusua…

cond-mat.str-el2003★ 17 cited

Unusual Ground State Properties of the Kondo-Lattice Compound Yb2Ir3Ge5

Yogesh Singh, S. Ramakrishnan

We report sample preparation, structure, electrical resistivity, magnetic susceptibility and heat capacity studies of a new compound Yb $_{2}$ Ir $_{3}$ Ge $_{5}$ . We find that this compound…

cond-mat.str-el2003★ 11 cited

Fractionalization in Spin Liquid Mott Insulators: Vison Wavefunctions and Gaps

Arun Paramekanti, Mohit Randeria, Nandini Trivedi

We study fractionalization in a spin-liquid Mott insulator defined by a Gutzwiller projected BCS state |0> at half-filling. We construct a trial vison (Z2 vortex) state |V> by proj…