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A. K. Grover
Researcher at Tata Institute of Fundamental Research
Publications - 130
Citations - 1240
A. K. Grover is an academic researcher from Tata Institute of Fundamental Research. The author has contributed to research in topics: Magnetization & Superconductivity. The author has an hindex of 20, co-authored 130 publications receiving 1194 citations.
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Anomalous peak effect in CeRu 2 and 2 H − NbSe 2 : Fracturing of a flux line lattice
Sumilan Banerjee,N. G. Patil,Subir Saha,S. Ramakrishnan,A. K. Grover,Sabyasachi Bhattacharya,Sabyasachi Bhattacharya,G. Ravikumar,Prasun Mishra,T. V. Chandrasekhar Rao,V. C. Sahni,Mark J. Higgins,E. Yamamoto,Yoshinori Haga,Masato Hedo,Yoshihiko Inada,Yoshichika Onuki,Yoshichika Onuki +17 more
TL;DR: In this paper, the authors present evidence for discontinuous changes in the screening response near the onset of the peak effect in these systems, and demonstrate history-dependent effects, attributing these features to disorder-induced fracturing and entanglement of the FLL.
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Observation of tunable exchange bias in Sr$_2$YbRuO$_6$
TL;DR: The double perovskite compound, Sr$2}$YbRuO$6}, displays reversal in the orientation of magnetic moments along with negative magnetization due to an underlying magnetic compensation phenomenon as discussed by the authors.
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Sign reversal in the exchange bias and the collapse of hysteresis width across the magnetic compensation temperature in a single crystal of Nd0.75Ho0.25Al2
P. D. Kulkarni,A. Thamizhavel,V. C. Rakhecha,A. K. Nigam,P. L. Paulose,S. Ramakrishnan,A. K. Grover +6 more
TL;DR: In this article, the conduction electron polarization (CEP) assumes the role of a soft ferromagnetic exchange coupled to a pseudo-antiferromagnet comprising Nd/Ho moments, resulting in an asymmetry in the hysteretic (M-H) loop.
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Peak effect, plateau effect, and fishtail anomaly: The reentrant amorphization of vortex matter in 2H-NbSe 2
Sumilan Banerjee,S. Ramakrishnan,A. K. Grover,G. Ravikumar,P. K. Mishra,V. C. Sahni,C. V. Tomy,Geetha Balakrishnan,D. McK. Paul,Peter Ledel Gammel,David J. Bishop,Ernst Bucher,Mark J. Higgins,Sabyasachi Bhattacharya,Sabyasachi Bhattacharya +14 more
TL;DR: In this paper, the magnetic field dependence of the critical current is studied in single-crystal samples of the weak pinning type-II superconductor $2H\ensuremath{-}{\mathrm{NbSe}}_{2}$ in the high-temperature and the low-field region of the $(H,T)$ space.
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Measurement and understanding of magnetization in AC and DC fields and the determination of intragrainH c1 in highT c RBa2Cu3O7 superconductors
TL;DR: In this paper, the authors present DC and low frequency AC magnetization measurements on various RBa2Cu3O7 superconductors and identify features intrinsic to these compounds, and establish the features originating from intergranular links in sintered pellets.