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Browsing Article by Author "Gangwar, V.K."

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Anomalous and topological Hall effect in Cu doped Sb2Te3topological insulator

Singh, A.; Gangwar, V.K.; Shahi, P.; Pal, D.; Singh, R.; Kumar, S.; Singh, S.; Gupta, S.K.; Kumar, S.K.; Kumar, S.; Cheng, J. (American Institute of Physics Inc., 2020-08-31)

The magneto-transport and magnetization measurements of Sb1.90Cu0.10Te3 were performed by varying both temperature and the magnetic field. The induced antiferromagnetic ordering with Cu doping and the observed quantum ...
B-site disorder driven multiple-magnetic phases: Griffiths phase, re-entrant cluster glass, and exchange bias in Pr2CoFeO6

Pal, A.; Singh, P.; Gangwar, V.K.; Ghosh, S.; Prakash, P.; Saha, S.K.; Das, A.; Kumar, M.; Ghosh, A.K.; Chatterjee, S. (American Institute of Physics Inc., 2019-06-14)

The magnetic spin ordering and the magnetization dynamics of a double perovskite Pr2CoFeO6 have been investigated by employing the (dc and ac) magnetization and neutron powder diffraction techniques. The study revealed ...
Defect induced ferromagnetic ordering and room temperature negative magnetoresistance in MoTeP

Pal, D.; Kumar, S.; Shahi, P.; Dan, S.; Verma, A.; Gangwar, V.K.; Singh, M.; Chakravarty, S.; Uwatoko, Y.; Saha, S.; Patil, S.; Chatterjee, S. (NLM (Medline), 2021-04-27)

The magneto-transport, magnetization and theoretical electronic-structure have been investigated on type-II Weyl semimetallic MoTeP. The ferromagnetic ordering is observed in the studied sample and it has been shown that ...
Investigation of multi-mode spin–phonon coupling and local B-site disorder in Pr2CoFeO6 by Raman spectroscopy and correlation with its electronic structure by XPS and XAS studies

Pal, Arkadeb; Ghosh, Surajit; Joshi, Amish G.; Kumar, Shiv; Patil, Swapnil; Gupta, Prince K.; Singh, Prajyoti; Gangwar, V.K.; Prakash, P.; Singh, Ranjan K.; Schwier, Eike F.; Sawada, M.; Shimada, K.; Ghosh, A.K.; Das, Amitabh; Chatterjee, Sandip (Institute of Physics Publishing, 2019)

Electronic structure of Pr2CoFeO6 (at 300 K) was investigated by x-ray photoemission spectroscopy (XPS) and x-ray absorption spectroscopy techniques. All three cations, i.e. Pr, Co and Fe were found to be trivalent in ...
Roles of Re-entrant cluster glass state and spin-lattice coupling in magneto-dielectric behavior of giant dielectric double perovskite La1.8Pr0.2CoFeO6

Singh, P.; Alam, M.; Kumar, S.; Anand, K.; Gangwar, V.K.; Ghosh, S.; Sawada, M.; Shimada, K.; Singh, R.K.; Ghosh, A.K.; Chatterjee, S. (Institute of Physics Publishing, 2020-10-21)

La based Co-Fe combined double perovskite (La1.8Pr0.2CoFeO6) was synthesized and the dielectric (zero-field and in-field), magnetic, X-ray absorption and Raman spectroscopy measurements have been investigated for ...
Spin freezing and field induced transition in (Tb1−xEux)2Ti2O7: A magnetic property study

Singh, P.; Pal, A.; Gangwar, V.K.; Ghosh, S.; Singh, R.K.; Ghosh, A.K.; Chatterjee, S. (Elsevier B.V., 2020-11-15)

The magnetic properties and Raman effect of (Tb1−xEux)2Ti2O7 have been investigated. Raman study indicates the existence of hardening due to phonon-phonon anharmonic interaction. The DC magnetic study indicates the significant ...

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