Search Results - "Mohn, Peter"
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First-principle based simulations of longitudinal spin-fluctuations in metals and integration in classical space with variable spin amplitude
Published in AIP advances (01-10-2018)“…The use of the classical Heisenberg model which incorporates only transverse spin degrees of freedom has only limited success for description of the metallic…”
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Effects of van der Waals Interactions in the Adsorption of Isooctane and Ethanol on Fe(100) Surfaces
Published in Journal of physical chemistry. C (07-08-2014)“…van der Waals (vdW) forces play a fundamental role in the structure and behavior of diverse systems. Because of development of functionals that include…”
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Ab-Initio Study of Calcium Fluoride Doped with Heavy Isotopes
Published in Crystals (Basel) (01-08-2022)“…Precision laser spectroscopy of the 229-thorium nuclear isomer transition in a solid-state environment would represent a significant milestone in the field of…”
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Density Functional Investigation of the Adsorption of Isooctane, Ethanol, and Acetic Acid on a Water-Covered Fe(100) Surface
Published in Journal of physical chemistry. C (18-09-2014)“…The presence of water in biofuels poses the question of how it affects the frictional performance of additives in fuels containing organic substances. To…”
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Longitudinal fluctuations of Co spin moments and their impact on the Curie temperature of the Heusler alloy Co2FeSi
Published in Journal of magnetism and magnetic materials (15-10-2022)“…•The main conclusion of the given work is that for an itinerant electron magnetic system a simple comparison of the calculated magnetic ordering temperatures…”
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Conditions for noncollinear instabilities of ferromagnetic materials
Published in Physical review letters (03-09-2004)“…Two criteria have been identified here which determine whether a magnetic metal orders in a collinear (e.g., ferromagnet) or noncollinear (e.g., spin-spiral)…”
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(Fe,Sn)4N alloy as a model spin-glass system with short-range competing interactions on a nonfrustrated simple cubic lattice
Published 06-02-2019“…Physical Review B 99, 054405 (2019) The origin of the spin-glass state in (Fe,Sn)4N alloys is studied on the basis of a Heisenberg Hamiltonian with parameters…”
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Layered antiferromagnetism with high Neel temperature in the intermetallic compound Mn2Au
Published in Applied physics letters (20-10-2008)“…On the basis of earlier experimental studies the intermetallic compound Mn2Au has been characterized as a nonmagnetically ordered material. Here we report the…”
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Nuclear Excitation of the Th 229 Isomer via Defect States in Doped Crystals
Published in Physical review letters (17-07-2020)Get full text
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Band Gap Calculations for Thorium‐Doped LiCAF
Published in Advanced theory and simulations (01-10-2022)“…The large band gap insulator LiCaAlF6 (LiCAF) has been proposed as a possible host crystal for future realizations of a solid‐state based thorium‐229 nuclear…”
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Microscopic origin of ferro-antiferromagnetic transition upon non-magnetic substitution in Ru2(Mn1−xVx)Ge full Heusler alloys
Published in Journal of alloys and compounds (25-01-2017)“…On the basis of first-principle simulations of interatomic magnetic exchange interactions, we show that the transition from antiferromagnetic order in Ru2MnGe…”
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Nuclear Excitation of the 229Th Isomer via Defect States in Doped Crystals
Published in Physical review letters (17-07-2020)“…When Th nuclei are doped in CaF2 crystals, a set of electronic defect states appear in the crystal band gap which would otherwise provide complete transparency…”
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13
A century of zero expansion
Published in Nature (London) (01-07-1999)“…Invar alloys, which do not change in volume when heated, are used in many temperature-sensitive devices, including surveying tapes and television and computer…”
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Materials science A century of zero expansion
Published in Nature (London) (01-07-1999)Get full text
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15
Layered antiferromagnetism with high Neel temperature in the intermetallic compound Mn 2 Au
Published in Applied physics letters (21-10-2008)“…On the basis of earlier experimental studies the intermetallic compound Mn 2 Au has been characterized as a nonmagnetically ordered material. Here we report…”
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Magnetic state, magnetovolume effects, and atomic order in Fe65Ni35 Invar alloy: A first principles study
Published in Physical review. B, Condensed matter and materials physics (01-07-2007)“…We employ the locally self-consistent Green's function technique and exact muffin-tin orbital method to investigate magnetic state and ground state properties…”
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Nuclear Excitation of the ^{229}Th Isomer via Defect States in Doped Crystals
Published in Physical review letters (17-07-2020)Get full text
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First-principles investigation of ferromagnetism and invar effect in fcc Fe-Cu alloys
Published in Physical review. B, Condensed matter and materials physics (01-04-2005)Get full text
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Theory of Invar anomalies in the Laves phase RCo 2 (R=Ho, Dy) intermetallic compounds
Published in Journal of magnetism and magnetic materials (2004)“…The quantitative theory of the anomalous thermal expansion in RCo 2 (R=Ho, Dy) compounds exhibiting first-order magnetic phase transitions is generalized by…”
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Developing a Model for Engaged Scholarship: Faculty Theories of Campus Community Collaboration in Service-Learning Partnerships
Published 01-01-2015“…This study explores faculty theories of service-learning as a teaching methodology in higher education. While there has been considerable increase in the…”
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Dissertation