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 2009 · cond-mat.str-elShow all

20 papers · 2 filters

cond-mat.str-el2009★ 10 cited

Influence of pressure on the magnetic behavior and the anomalous magnetoresistance in Tb5Si3

Niharika Mohapatra, Sitikantha D Das, K. Mukherjee +2

The compound, Tb5Si3, crystallizing in Mn5Si3-type hexagonal structure, was recently reported by us to exhibit a sudden and huge enhancement in electrical resistivity (rho) at a cr…

cond-mat.str-el2009★ 28 cited

Importance of conduction electron correlation in a Kondo lattice, Ce2CoSi3

Swapnil Patil, Sudhir Pandey, V. R. R. Medicherla +4

Kondo systems are usually described by the interaction of strong correlation induced local moment with the highly itinerant conduction electrons. Here, we study the role of electro…

cond-mat.str-el2009★ 51 cited

Magnetic impurities in the honeycomb Kitaev model

Kusum Dhochak, R. Shankar, V. Tripathi

We study the effect of coupling magnetic impurities to the honeycomb lattice spin-1/2 Kitaev model in its spin liquid phase. We show that a spin-S impurity coupled to the Kitaev mo…

cond-mat.str-el2009★ 14 cited

Magnetocrystalline anisotropy in RAu_{2}Ge_{2} (R = La, Ce and Pr) single crystals

Devang A. Joshi, A. K. Nigam, S. K. Dhar +1

Anisotropic magnetic properties of single crystalline RAu_{2}Ge_{2} (R = La, Ce and Pr) compounds are reported. LaAu_{2}Ge_{2} exhibit a Pauli-paramagnetic behavior whereas CeAu_{2…

cond-mat.str-el2009★ 5 cited

Spectral evolution in an insulator exhibiting linear specific heat

R. Bindu, Ganesh Adhikary, Sudhir K. Pandey +1

We investigate the spectral evolution of an antiferromagnetic insulator, La $_{0.2}$ Sr $_{0.8}$ MnO $_{3}$ exhibiting linear specific heat using state-of-the-art high resolution photoemi…

cond-mat.str-el2009★ 12 cited

Sharp fall of electrical resistance for a small application of magnetic field on a metastable form of a compound, Tb5Si3, under pressure

Kartik K Iyer, E. V. Sampathkumaran

We report an unusual sensitivity of electrical resistivity (rho) to an application of a small magnetic field in an intermetallic compound, Tb5Si3, under pressure. In this compound,…

cond-mat.str-el2009★ 17 cited

Magnetic and electrical properties of RCo2Mn (R=Ho, Er) compounds

Bibekananda Maji, K. G. Suresh, A. K. Nigam

The RCo2Mn (R= Ho and Er) alloys, crystallizing in the cubic MgCu2-type structure, are isostructural to RCo2 compounds. The excess Mn occupies both the R and the Co atomic position…

cond-mat.str-el2009★ 35 cited

Magnetic properties of EuPtSi $_{3}$ single crystals

Neeraj Kumar, S. K. Dhar, P. Manfrinetti +2

Single crystals of EuPtSi $_{3}$ , which crystallize in the BaNiSn $_{3}$ -type crystal structure, have been grown by high temperature solution growth method using molten Sn as the solvent…

cond-mat.str-el2009★ 16 cited

Magnetic Behavior in RRhX (R = rare earths; X=B, C) Compounds

Devang A. Joshi, Neeraj Kumar, A. Thamizhavel +1

We report on the magnetic behavior of RRhB (R = La, Ce, Pr, Nd, Gd, Tb and Tm) and RRhC (R = La, Ce, Pr and Gd) compounds crystallizing in the cubic perovskite type structure with…

cond-mat.str-el2009

Insensitivity of magnetic anomalies in Sr3NiPtO6 to positive and negative pressures

S. Narayana Jammalamadaka, Niharika Mohapatra, Karthik K Iyer +1

The compound, Sr3NiPtO6, belonging to a K4CdCl6-type rhombohedral structure, has been reported not to exhibit magnetic ordering at least down to 1.8 K, despite a relatively large v…

cond-mat.str-el2009★ 9 cited

Magnetic behavior of nanocrystalline ErCo2

Sitikantha D Das, Niharika Mohapatra, Kartik K Iyer +2

We have investigated the magnetic behavior of the nanocrystalline form of a well-known Laves phase compound, ErCo2 - the bulk form of which has been known to undergo an interesting…

cond-mat.str-el2009★ 2 cited

Magnetic anomalies in nanocrystalline Ca3CoRhO6, a geometrically frustrated spin-chain compound,

Niharika Mohapatra, Kartik K Iyer, B. A. Chalke +1

We have investigated the magnetic behavior of the nano crystals, synthesized by high-energy ball-milling, for a well-known geometrically frustrated spin-chain system, Ca3CoRhO6, an…

cond-mat.str-el2009★ 4 cited

Magnetic Anisotropy in Single Crystalline CeAu $_{2}$ In $_{4}$

Devang A. Joshi, P. Manfrinetti, S. K. Dhar +1

We have grown the single crystals of LaAu $_{2}$ In $_{4}$ and CeAu $_{2}$ In $_{4}$ by high temperature solution method and report on the anisotropic magnetic behavior of CeAu $_{2}$ In$_…

cond-mat.str-el2009★ 6 cited

Study of magnetic interactions in a spin liquid, Sr3NiPtO6 using density functional approach

Sudhir K. Pandey, Kalobaran Maiti

We investigate the magnetic interactions in Sr3NiPtO6, characterized to be a spin liquid using ab initio calculations. The results reveal a novel metal to insulator transition due…

cond-mat.str-el2009

EuFe_2As_2 magnetic structure determination

Javier Herrero-Martin, Valerio Scagnoli, Claudio Mazzoli +8

Magnetic resonant X ray scattering experiments have been performed on a single crystal of EuFe_2As_2 at the Eu L_3 absorption edge. This has permitted us to determine for the first…

cond-mat.str-el2009★ 25 cited

Magnetic behavior of nano crystals of a spin-chain system, Ca3Co2O6: Absence of multiple steps in the low temperature isothermal magnetization

Niharika Mohapatra, Kartik K Iyer, Sitikantha D Das +3

We report that the major features in the temperature dependence of dc and ac magnetization of a well-known spin-chain compound, Ca3Co2O6, which has been known to exhibit two comple…

cond-mat.str-el2009★ 10 cited

Thermal and Transport Behavior of Single Crystalline R2CoGa8 (R = Gd, Tb, Dy, Ho, Er, Tm, Lu and Y) Compounds

Devang A. Joshi, A. K. Nigam, S. K. Dhar +1

The anisotropy in electrical transport and thermal behavior of single crystalline R $_{2}$ CoGa $_{8}$ series of compounds is presented. These compounds crystallize in a tetragonal st…

cond-mat.str-el2009★ 2 cited

Kondo Lattice Scenario in Disordered Semiconductor Heterostructures

Kusum Dhochak, V. Tripathi

We study nuclear relaxation in the presence of localized electrons in a two-dimensional electron gas in a disordered delta-doped semiconductor heterostructure and show that this me…

cond-mat.str-el2009★ 18 cited

Magnetic anomalies in Gd6Co1.67Si3 and Tb6Co1.67Si3

S. Narayana Jammalamadaka, Niharika Mohapatra, Sitikantha D Das +2

The compounds, Gd6Co1.67Si3 and Tb6Co1.67Si3, recently reported to form in a Ce6Ni2Si3-derived hexagonal structure (space group: P6_3 / m) and to order magnetically below 295 and 1…