A. Kreyssig

activity

20052026

most citedFirst order structural phase transition in CaFe

_{2}

_{2}

301 citations · 2.5k across the 40 of their papers we have counts for

collaborators

35 papers

cond-mat.str-el2026

Doping-induced Ferromagnetic order and its unusual evolution to Helical Antiferromagnetic Order in Sr(Ni $_{1 - x}$ Co $_{x}$ ) $_{2}$ P $_{2}$

A. Sapkota, J. Schmidt, J. M. Wilde +6

SrNi $_{2}$ P $_{2}$ represents a unique case of a collapsed structural phase (one-third collapsed, where one out of every three P-P pairs forms a bond) in the A(TM) $_{2}$ X $_{2}$ family of co…

cond-mat.mtrl-sci2025

Peierls Transition and Magnetism in a Dirac Semimetal: CaMnBi $_{2}$

Aashish Sapkota, Niraj Aryal, Xiao Hu +9

Dirac semimetals of the form $A$ Mn $X_{2}$ ( $A =$ alkaline-earth or divalent rare earth; $X =$ Bi, Sb) host conducting square-net Dirac-electron layers of $X$ atoms interleaved with a…

cond-mat.str-el2019★ 17 cited

Competing magnetic phases and itinerant magnetic frustration in SrCo $_{2}$ As $_{2}$

Bing Li, B. G. Ueland, W. T. Jayasekara +9

Whereas magnetic frustration is typically associated with local-moment magnets in special geometric arrangements, here we show that SrCo $_{2}$ As $_{2}$ is a candidate for frustrated…

cond-mat.str-el2019★ 12 cited

Antiferromagnetic Stacking of Ferromagnetic Layers and Doping Controlled Phase Competition in Ca $_{1 - x}$ Sr $_{x}$ Co $_{2 - y}$ As $_{2}$

Bing Li, Y. Sizyuk, N. S. Sangeetha +9

In search of a quantum phase transition between the two-dimensional ( $2$ D) ferromagnetism of CaCo $_{2 - y}$ As $_{2}$ and stripe-type antiferromagnetism in SrCo $_{2}$ As $_{2}$ , we rathe…

cond-mat.supr-con2018★ 34 cited

Antiferromagnetic order in CaK(Fe[1-x]Ni[x])4As4 and its interplay with superconductivity

A. Kreyssig, J. M. Wilde, A. E. Böhmer +9

The magnetic order in CaK(Fe[1-x]Ni[x])4As4 (1144) single crystals (x = 0.051 and 0.033) has been studied by neutron diffraction. We observe magnetic Bragg peaks associated to the…

cond-mat.supr-con2017★ 36 cited

Effective One-Dimensional Coupling in the Highly-Frustrated Square-Lattice Itinerant Magnet CaCo $_{2 - y}$ As $_{2}$

A. Sapkota, B. G. Ueland, V. K. Anand +8

Inelastic neutron scattering measurements on the itinerant antiferromagnet (AFM) CaCo $_{2 - y}$ As $_{2}$ at a temperature of 8 K reveal two orthogonal planes of scattering pe…

Doping-induced Ferromagnetic order and its unusual evolution to Helical Antiferromagnetic Order in Sr(Ni1−x​Cox​)2​P2​

Peierls Transition and Magnetism in a Dirac Semimetal: CaMnBi2​

Competing magnetic phases and itinerant magnetic frustration in SrCo2​As2​

Antiferromagnetic Stacking of Ferromagnetic Layers and Doping Controlled Phase Competition in Ca1−x​Srx​Co2−y​As2​