141 citations · 385 across the 10 of their papers we have counts for
9 papers
Competing magnetic phases and itinerant magnetic frustration in SrCoAs
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 SrCoAs is a candidate for frustrated…
Distinct pressure evolution of coupled nematic and magnetic order in FeSe
Anna E. Böhmer, Karunakar Kothapalli, Wageesha T. Jayasekara +13
FeSe, despite being the structurally simplest compound in the family of iron-based superconductors, shows an astoundingly rich interplay of physical phenomena including nematicity…
Collapsed Tetragonal Phase Transition in LaRuP
Gil Drachuck, Aashish Sapkota, Wageesha Jayasekara +5
The structural properties of LaRuP under external pressure have been studied up to 14 GPa, employing high-energy x-ray diffraction in a diamond-anvil pressure cell. At ambi…
Suppression of magnetic order in CaCoAs with Fe substitution: Magnetization, neutron diffraction, and x-ray diffraction studies of Ca(CoFe)As
W. T. Jayasekara, Abhishek Pandey, A. Kreyssig +10
Magnetization, neutron diffraction, and high-energy x-ray diffraction results for Sn-flux grown single-crystal samples of Ca(CoFe)As, , $1.8…
Strong cooperative coupling of pressure-induced magnetic order and nematicity in FeSe
K. Kothapalli, A. E. Böhmer, W. T. Jayasekara +10
A hallmark of the iron-based superconductors is the strong coupling between magnetic, structural and electronic degrees of freedom. However, a universal picture of the normal state…
Pressure-induced collapsed-tetragonal phase in SrCo2As2
W. T. Jayasekara, U. S. Kaluarachchi, B. G. Ueland +16
We present high-energy x-ray diffraction data under applied pressures up to p = 29 GPa, neutron diffraction measurements up to p = 1.1 GPa, and electrical resistance measurements u…
Complex magnetic ordering in CeGe1.76 studied by neutron diffraction
W. T. Jayasekara, W. Tian, H. Hodovanets +4
Neutron diffraction measurements on a single crystal of CeGe1.76 reveal a complex series of magnetic transitions at low temperature. At T_N = 7 K, there is a transition from a para…
Crystallographic, Electronic, Thermal and Magnetic Properties of Single-Crystal SrCo2As2
Abhishek Pandey, D. G. Quirinale, W. Jayasekara +14
In tetragonal SrCo2As2 single crystals, inelastic neutron scattering measurements demonstrated that strong stripe-type antiferromagnetic (AFM) correlations occur at a temperature T…
Stripe Antiferromagnetic Spin Fluctuations in SrCoAs
W. Jayasekara, Y. Lee, Abhishek Pandey +12
Inelastic neutron scattering measurements of paramagnetic SrCoAs at T=5 K reveal antiferromagnetic (AFM) spin fluctuations that are peaked at a wavevector of $\textbf{Q…