SelectedWorks - A. I. Goldman

The microscopic details of the suppression of antiferromagnetic order in the Kondo-lattice series Ce1-&ITx&ITLa&ITx&ITCu2Ge2 due to nonmagnetic dilution by La ...

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Article

Hedgehog spin-vortex crystal stabilized in a hole-doped iron-based superconductor

Ames Laboratory Accepted Manuscripts (2018)

William R. Meier, Qing-Ping Ding, Andreas Kreyssig, Sergey Bud’ko, et al.

Magnetism is widely considered to be a key ingredient of unconventional superconductivity. In contrast to cuprate high-temperature superconductors, antiferromagnetism in ...

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Article

In situ Investigation of Magnetism in Metastable Phases of Levitated ...

Ames Laboratory Accepted Manuscripts (2017)

D. G. Quirinale, D. Messina, G. E. Rustan, Andreas Kreyssig, et al.

In situ measurements of structure, density, and magnetization on samples of Fe83B17 using an electrostatic levitation furnace allow us to ...

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Article

Heisenberg model analysis on inelastic powder neutron scattering data using ...

Ames Laboratory Accepted Manuscripts (2017)

Mehmet Ramazanoglu, Aashish Sapkota, Abhishek Pandey, Jagat Lamsal, et al.

Low temperature powder inelastic neutron scattering measurements were performed on three different powder samples; parent BaMn2As2,12.5% K-doped Ba0.875K0.125Mn2As2 and 25% ...

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Article

Collapsed tetragonal phase transition in LaRu2P2

Ames Laboratory Accepted Manuscripts (2017)

Gil Drachuck, Aashish Sapkota, Wageesha T. Jayasekara, Karunakar Kothapalli, et al.

The structural properties of LaRu2P2 under external pressure have been studied up to 14 GPa, employing high-energy x-ray diffraction in ...

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Article

Superelasticity and cryogenic linear shape memory effects of CaFe2As2

Ames Laboratory Accepted Manuscripts (2017)

John T. Sypek, Hang Yu, Keith J. Dusoe, Gil Drachuck, et al.

Shape memory materials have the ability to recover their original shape after a significant amount of deformation when they are ...

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Article

Effective One-Dimensional Coupling in the Highly Frustrated Square-Lattice Itinerant Magnet ...

Ames Laboratory Accepted Manuscripts (2017)

Aashish Sapkota, B. G. Ueland, V. K. Anand, N. S. Sangeetha, et al.

Inelastic neutron scattering measurements on the itinerant antiferromagnet CaCo2−yAs2 at a temperature of 8 K reveal two orthogonal planes of ...

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Article

Pressure Induced Half-Collapsed-Tetragonal Phase in CaKFe4As4

Ames Laboratory Accepted Manuscripts (2017)

Udhara Kaluarachchi, Valentin Taufour, Aashish Sapkota, Vladislav Borisov, et al.

We report the temperature-pressure phase diagram of CaKFe4As4 established using high-pressure electrical resistivity, magnetization, and high-energy x-ray diffraction measurements up ...

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Article

Neutron-Scattering Measurements of Spin Excitations in LaFeAsO and Ba(Fe0 ...

Physical Review Letters (2015)

Qiang Zhang, Rafael M. Fernandes, Jagat Lamsal, Jiaqiang Yan, et al.

Inelastic neutron scattering is employed to investigate the impact of electronic nematic order on the magnetic spectra of LaFeAsO and ...

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Article

Complex magnetic ordering in CeGe1.76 studied by neutron diffraction

Physical Review B (2014)

Wageesha T. Jayasekara, W. Tian, Halyna Hodovanets, Paul C. Canfield, et al.

Neutron diffraction measurements on a single crystal of CeGe1.76 reveal a complex series of magnetic transitions at low temperature. At ...

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Article

Magnetic and transport properties of i-R-Cd icosahedral quasicrystals (R=Y ...

Physical Review B (2014)

Tai Kong, Sergey L. Bud'ko, Anton Jesche, John McArthur, et al.

We present a detailed characterization of the recently discovered i-R-Cd (R=Y,Gd-Tm) binary quasicrystals by means of x-ray diffraction, temperature-dependent dc ...

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Article

Fragile antiferromagnetism in the heavy-fermion compound YbBiPt

Physical Review B (2014)

Benjamin G. Ueland, Andreas Kreyssig, K. Prokeš, J. W. Lynn, et al.

We report results from neutron scattering experiments on single crystals of YbBiPt that demonstrate antiferromagnetic order characterized by a propagation ...

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Article

β-Mn-Type Co8+xZn12–x as a Defect Cubic Laves Phase ...

Inorganic Chemistry (2013)

Weiwei Xie, Srinvasa Timmaiah, Jagat Lamal, Jing Liu, et al.

The results of crystallographic analysis, magnetic characterization, and theoretical assessment of β-Mn-type Co–Zn intermetallics prepared using high-temperature methods are presented. ...

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Article

Effects of Transition Metal Substitutions on the Incommensurability and Spin ...

Physical Review Letters (2012)

Min Gyu Kim, Jagat Lamsal, T. W. Heitmann, Gregory S. Tucker, et al.

The spin fluctuation spectra from nonsuperconducting Cu-substituted, and superconducting Co-substituted, BaFe2As2 are compared quantitatively by inelastic neutron scattering measurements and ...

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Article

Interplay of Fe and Nd magnetism in NdFeAsO single crystals

Physical Review B (2010)

W. Tian, W. Ratcliff, M. G. Kim, J.-Q. Yan, et al.

The structural and magnetic phase transitions have been studied on NdFeAsO single crystals by neutron and x-ray diffraction complemented by ...

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Article

Unconventional pairing in the iron arsenide superconductors

Physical Review B (2010)

Rafael M. Fernandes, Daniel K. Pratt, Wei Tian, Jerel L. Zarestky, et al.

We use magnetic long-range order as a tool to probe the Cooper-pair wave function in the iron arsenide superconductors. We ...

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About A. I. Goldman

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Peer-Reviewed Articles (47)

Present	Distinguished Professor, Iowa State University ‐ Department of Physics and Astronomy
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