Zobrazeno 1 - 10
of 502
pro vyhledávání: '"Pandey, Dhananjai"'
Autor:
Kumar, Keshav, Mishra, Shrawan K., Singh, Sanjay, Baev, Ivan, Martins, Michael, Orlandi, Fabio, Manuel, Pascal, Pandey, Dhananjai
Publikováno v:
Physica Status Solidi - Rapid Research Letters 15, 2000506 (2021)
The magnetic ground state of BaFe12O19 (BFO) was investigated using X-ray absorption at 1.2 K and 1.5 K, respectively. The XMCD measurements on single-crystals of BFO in grazing incidence geometry reveal the canting of the spins away from the c-axis
Externí odkaz:
http://arxiv.org/abs/2312.12001
Publikováno v:
Chemical Communications 56, 14897-14900 (2020)
We present here the results of low-temperature magnetization and X-ray magnetic circular dichroism studies on single crystals of BaFe12O19 which reveal for the first time the emergence of a spin glass phase, in coexistence with the long-range ordered
Externí odkaz:
http://arxiv.org/abs/2312.11990
Autor:
Kumar, Keshav, Pandey, Dhananjai
Evidence for a re-entrant quantum paraelectric (QPE) state preceded by a dipole glass (DG) phase with a non-classical exponent in the quantum critical regime of SrFe12O19 is presented. It is shown that the DG transition is accompanied with a spin gla
Externí odkaz:
http://arxiv.org/abs/2312.10619
Frustration effects in magnetic systems have traditionally been investigated considering pre-existing site-disorder or lattice geometry of the high-temperature paramagnetic phase. We present here evidence for emergence of geometrical frustration as a
Externí odkaz:
http://arxiv.org/abs/2111.15610
Autor:
Singh, Anupam K., Singh, Sanjay, Dutta, B., Dubey, K. K., Joseph, Boby, Rawat, R., Pandey, Dhananjai
Publikováno v:
Physical Review MATERIALS 5, 113607 (2021)
The thermodynamic stability of the premartensite (PM) phase has been a topic of extensive investigation in shape memory alloys as it affects the main martensite phase transition and the related physical properties. In general, the PM phase is stable
Externí odkaz:
http://arxiv.org/abs/2110.12154
Publikováno v:
Phys. Rev. B 104, 064110 (2021)
Precursor phenomena observed prior to the martensite phase transition plays a critical role towards the understanding of important technological properties of shape memory and magnetic shape memory alloys (MSMAs). The premartensite (PM) phase, consid
Externí odkaz:
http://arxiv.org/abs/2102.13024
Publikováno v:
In Evolving Earth 1 December 2023 1
Publikováno v:
In Journal of Alloys and Compounds 5 September 2023 954
Autor:
Singh, Pragya, Upadhyay, Chandan, KonÔpková, Zuzana, Liermann, Hanns-Peter, Pandey, Dhananjai
Publikováno v:
Phys. Rev. Materials 3, 094405 (2019)
Despite the technological significance of the tetragonal PbTiO3 for the piezoelectric transducer industry, its high pressure behaviour is quite controversial as two entirely different scenarios, involving pressure induced (1) morphotropic phase bound
Externí odkaz:
http://arxiv.org/abs/1903.00307