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Terahertz annular antenna driven with a short intense laser pulse
N. Bukharskii, Iu. Kochetkov, Ph. Korneev
Generation of terahertz radiation by an oscillating discharge, excited with short laser pulses, may be controlled by geometry of the irradiated target. In this work, an annular tar…
Electronic structure of CoAs ( Ca, Sr, Ba, Eu) studied using angle-resolved photoemission spectroscopy and theoretical calculations
R. S. Dhaka, Y. Lee, V. K. Anand +4
We present a comprehensive study of the low-energy band structure and Fermi surface (FS) topology of CoAs ( Ca, Sr, Ba, Eu) using high-resolution angle-resolved phot…
Suppression of antiferromagnetic order and strong ferromagnetic spin fluctuations in Ni-doped CaCo2As2 single crystals
Santanu Pakhira, Y. Lee, Liqin Ke +5
CaCo2As2 is a unique itinerant system having strong magnetic frustration. Here we report the effect of electron doping on the physical properties resulting from Ni substitutions fo…
A-type antiferromagnetic order and magnetic phase diagram of the trigonal Eu spin-7/2 triangular-lattice compound EuSn2As2
Santanu Pakhira, M. A. Tanatar, Thomas Heitmann +2
The trigonal compound EuSn2As2 was recently discovered to host Dirac surface states within the bulk band gap and orders antiferromagnetically below the Neel temperature TN = 24 K.…
First-order transitions at the Neel temperatures of trigonal SrMn2P2 and CaMn2P2 single crystals containing corrugated-honeycomb Mn sublattices
N. S. Sangeetha, Santanu Pakhira, Q. -P. Ding +5
Single crystals of SrMn2P2 and CaMn2P2 were grown using Sn flux and characterized by single-crystal x-ray diffraction, electrical resistivity rho, heat capacity Cp, and magnetic su…
Carrier Tuning of Stoner Ferromagnetism in ThCrSi-Structure Cobalt Arsenides
B. G. Ueland, Santanu Pakhira, Bing Li +7
CaCoAs is an unusual itinerant magnet with signatures of extreme magnetic frustration. The conditions for establishing magnetic order in such itinerant frustrated magne…