Works (41)

Updated: July 22nd, 2023 21:14

2020 journal article

Exchange interactions and long-range magnetic order in the (Mg,Co,Cu,Ni,Zn)O entropy-stabilized oxide: A theoretical investigation

JOURNAL OF APPLIED PHYSICS, 127(18).

By: Z. Rak n & D. Brenner n

Sources: Web Of Science, NC State University Libraries
Added: June 1, 2020

2019 journal article

Effect of water chemistry on the composition of oxides formed on stainless steel surfaces in light water reactors

JOURNAL OF NUCLEAR MATERIALS, 526.

By: Z. Rak n & D. Brenner n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: December 30, 2019

2019 journal article

Influence of mass and charge disorder on the phonon thermal conductivity of entropy stabilized oxides determined by molecular dynamics simulations

JOURNAL OF APPLIED PHYSICS, 125(5).

Sources: Web Of Science, NC State University Libraries
Added: February 25, 2019

2019 article

Investigation on origin of Ru-induced deep-level defects in 4H-SiC epilayer based Schottky diodes by DLTS and theoretical calculations

HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XXI, Vol. 11114.

author keywords: 4H-SiC; epitaxial layer; DLTS; Ru-induced deep-levels; Schottky diode; DFT calculations
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: April 20, 2020

2019 journal article

Negative Surface Energies of Nickel Ferrite Nanoparticles under Hydrothermal Conditions

JOURNAL OF NANOMATERIALS, 2019.

By: Z. Rak n & D. Brenner n

Sources: Web Of Science, NC State University Libraries
Added: November 18, 2019

2018 journal article

Evidence for Jahn-Teller compression in the (Mg, Co, Ni, Cu, Zn)O entropy-stabilized oxide: A DFT study

MATERIALS LETTERS, 217, 300–303.

By: Z. Rak n, J. Maria n & D. Brenner n

author keywords: Jahn-Teller distortion; Entropy-stabilized oxides; High entropy materials
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2018 journal article

First-principles investigation of diffusion and defect properties of Fe and Ni in Cr2O3

Journal of Applied Physics, 123(15).

By: Z. Rak & D. Brenner

Source: NC State University Libraries
Added: August 6, 2018

2017 journal article

Ab initio investigation of the surface properties of austenitic Fe-Ni-Cr alloys in aqueous environments

APPLIED SURFACE SCIENCE, 402, 108–113.

By: Z. Rak n & D. Brenner n

author keywords: Austenitic; Fe-Cr-Ni; Alloy; Stainless steel; Surface energy; Ab initio
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Local structure of the MgxNixCoxCuxZnxO(x=0.2) entropy-stabilized oxide: An EXAFS study

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 100(6), 2732–2738.

By: C. Rost n, Z. Rak n, D. Brenner n & J. Maria n

author keywords: oxides; structure; X-ray methods
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Charge compensation and electrostatic transferability in three entropy-stabilized oxides: Results from density functional theory calculations

Journal of Applied Physics, 120(9).

By: Z. Rak, C. Rost, M. Lim, P. Sarker, C. Toher, S. Curtarolo, J. Maria, D. Brenner

Source: NC State University Libraries
Added: August 6, 2018

2016 journal article

Theoretical assessment of bonaccordite formation in pressurized water reactors

JOURNAL OF NUCLEAR MATERIALS, 474, 62–64.

By: Z. Rak n, C. O'Brien n, D. Shin*, A. Andersson*, C. Stanek* & D. Brenner n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2016 journal article

Understanding the Atomic-Level Chemistry and Structure of Oxide Deposits on Fuel Rods in Light Water Nuclear Reactors Using First Principles Methods

JOM, 68(11), 2912–2921.

By: Z. Rak n, C. O'Brien n, D. Brenner n, D. Andersson* & C. Stanek*

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Defect formation in aqueous environment: Theoretical assessment of boron incorporation in nickel ferrite under conditions of an operating pressurized-water nuclear reactor (PWR)

JOURNAL OF NUCLEAR MATERIALS, 461, 350–356.

By: Z. Rak n, E. Bucholz n & D. Brenner n

Contributors: Z. Rák n, E. Bucholz n & D. Brenner n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

Interplay of electronic structure and unusual development in crystal structure of YbAuIn and Yb3AuGe2In3

PHILOSOPHICAL MAGAZINE, 95(20), 2167–2174.

By: Z. Rak n & D. Brenner n

Contributors: Z. Rák n & D. Brenner n

author keywords: electronic structure; Yb-intermetallics; intermediate valency; strongly correlated materials
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

A particle assembly/constrained expansion (PACE) model for the formation and structure of porous metal oxide deposits on nuclear fuel rods in pressurized light water reactors

JOURNAL OF NUCLEAR MATERIALS, 457, 209–212.

By: D. Brenner n, S. Lu n, . Christopher J. O'Brien, E. Bucholz n & Z. Rak n

Contributors: D. Brenner n, S. Lu n, . C.J. O'Brien, E. Bucholz n & Z. Rak n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

Calculated Stability and Structure of Nickel Ferrite Crystal Surfaces in Hydrothermal Environments

JOURNAL OF PHYSICAL CHEMISTRY C, 118(10), 5414–5423.

By: . Christopher J. O'Brien, Z. Rak n & D. Brenner n

Contributors: . C.J. O'Brien, Z. Rák n & D. Brenner n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

First principles calculations predict stable 50 nm nickel ferrite particles in PWR coolant

JOURNAL OF NUCLEAR MATERIALS, 454(1-3), 77–80.

By: C. O'Brien n, Z. Rak n, E. Bucholz n & D. Brenner n

Contributors: . C.J. O'Brien, Z. Rák n, E. Bucholz n & D. Brenner n

UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

First-principles investigation of boron defects in nickel ferrite spinel

JOURNAL OF NUCLEAR MATERIALS, 452(1-3), 446–452.

By: Z. Rak n, C. O'Brien n & D. Brenner n

Contributors: Z. Rák n, . C.J. O'Brien & D. Brenner n

Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 conference paper

First-principles investigation of boron incorporation into CRUD under Pressurized Water Reactor conditions

Materials Research Society Symposium Proceedings, 1709.

By: Z. Rák n, C. O’Brien n & D. Brenner n

Contributors: Z. Rák n, . C.J. O'Brien & D. Brenner n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: ORCID
Added: September 11, 2019

2014 journal article

Thermodynamics of thorium substitution in yttrium iron garnet: comparison of experimental and theoretical results

JOURNAL OF MATERIALS CHEMISTRY A, 2(40), 16945–16954.

Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2014 journal article

Three New Silver Uranyl Diphosphonates: Structures and Properties

INORGANIC CHEMISTRY, 53(6), 2787–2796.

By: A. Nelson*, Z. Rak n, T. Abrecht-Schmitt, U. Becker* & R. Ewing*

Contributors: A. Nelson*, Z. Rak n, T. Albrecht-Schmitt*, U. Becker* & R. Ewing*

TL;DR: The syntheses, crystal structures, Raman spectroscopy, and luminescent behavior of these three compounds are reported, and electronic structure calculations were performed using the projector augmented wave (PAW) method with density functional theory (DFT) to gain insight into the nature of bonding and electronic characteristics of the synthesized compounds. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2013 journal article

Electronic structure and thermodynamic stability of uranium-doped yttrium iron garnet

JOURNAL OF PHYSICS-CONDENSED MATTER, 25(49).

By: Z. Rak n, R. Ewing* & U. Becker*

Contributors: Z. Rák n, R. Ewing* & U. Becker*

TL;DR: The electronic and thermodynamic properties of yttrium iron garnet (Y3Fe5O12, YIG), as a possible uranium-bearing phase, have been investigated using first-principles and semi-empirical methods to obtain a fundamental understanding of the incorporation mechanism and stability of U in a YIG matrix. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2013 journal article

Ferric garnet matrices for immobilization of actinides

JOURNAL OF NUCLEAR MATERIALS, 436(1-3), 1–7.

By: Z. Rak*, R. Ewing* & U. Becker*

Contributors: Z. Rak*, R. Ewing* & U. Becker*

UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2013 journal article

Free energies of (Co, Fe, Ni, Zn) Fe 2 O 4 spinels and oxides in water at high temperatures and pressure from density functional theory: results for stoichiometric NiO and NiFe2O4surfaces

Journal of Physics: Condensed Matter, 25(44), 445008.

By: C. O’Brien n, Z. Rák n & D. Brenner n

Contributors: . C.J. O'Brien, Z. Rák n & D. Brenner n

TL;DR: The ECPs are used to calculate free energies of low index stoichiometric surfaces of nickel oxide (NiO) and nickel ferrite (NiFe2O4) in water as a function of temperature from 300 to 600 K at a pressure of 155 bar. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: ORCID, NC State University Libraries, Crossref, NC State University Libraries
Added: August 6, 2018

2012 journal article

Hydroxylation-induced surface stability of AnO(2) (An = U, Np, Pu) from first-principles

Surface Science, 608, 180–187.

By: Z. Rak*, R. Ewing* & U. Becker*

Contributors: Z. Rak*, R. Ewing* & U. Becker*

author keywords: Actinide dioxide surfaces; Water adsorption; Surface energy; Surface stability; Density functional theory
Source: ORCID
Added: September 11, 2019

2011 journal article

Ab initio investigation of actinide incorporation in Ti, Zr, Hf, and Sn-containing garnet structure

Abstracts of Papers of the American Chemical Society, 241.

By: Z. Rak, R. Ewing & U. Becker

Contributors: Z. Rak, R. Ewing & U. Becker

Source: ORCID
Added: September 11, 2019

2011 journal article

Actinide adsorption onto mineral surfaces: A quantum-mechanical investigation

Abstracts of Papers of the American Chemical Society, 242.

By: L. Shuller, D. Renock, Z. Rak, S. Fernando, I. Dzulkifli, R. Ewing, U. Becker

Contributors: L. Shuller, D. Renock, Z. Rak, S. Fernando, I. Dzulkifli, R. Ewing, U. Becker

Source: ORCID
Added: September 11, 2019

2011 journal article

Actinide incorporation into uranyl alteration phases and garnets

Abstracts of Papers of the American Chemical Society, 242.

By: U. Becker, L. Shuller, R. Ewing & Z. Rak

Contributors: U. Becker, L. Shuller, R. Ewing & Z. Rak

Source: ORCID
Added: September 11, 2019

2011 journal article

Electronic structure and energetics of tetragonal SrCuO2and its high-pressure superstructure phase

Journal of Physics-Condensed Matter, 23(46), 465503.

Contributors: J. Wang*, Z. Rak*, F. Zhang*, R. Ewing* & U. Becker*

TL;DR: The detailed analysis of the electronic band structures of the simple tetragonal and superstructure phases suggests that the out-of-plane buckling of the O atoms in the superstructure leads to significant decrease in the O p-Cu d orbital overlap, allowing the energy of the system to be lowered, which is necessary for the structural stability. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: September 11, 2019

2011 journal article

First-principles investigation of Ca-3(Ti, Zr, Hf, Sn)(2)Fe2SiO12 garnet structure for incorporation of actinides

Physical Review B, 83(15).

By: Z. Rak*, R. Ewing* & U. Becker*

Contributors: Z. Rak*, R. Ewing* & U. Becker*

Source: ORCID
Added: September 11, 2019

2011 journal article

Role of iron in the incorporation of uranium in ferric garnet matrices

Physical Review B, 84(15).

By: Z. Rak*, R. Ewing* & U. Becker*

Contributors: Z. Rak*, R. Ewing* & U. Becker*

Source: ORCID
Added: September 11, 2019

2010 journal article

Defect-induced rigidity enhancement in layered semiconductors

Solid State Communications, 150(27-28), 1200–1203.

By: Z. Rak*, S. Mahanti*, K. Mandal* & N. Fernelius*

Contributors: Z. Rak*, S. Mahanti*, K. Mandal* & N. Fernelius*

author keywords: Defects in semiconductors; Ab initio; Electronic structure; Mechanical properties
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: ORCID
Added: September 11, 2019

2010 journal article

Doping dependence of electronic and mechanical properties of GaSe1-xTex and Ga1-xInxSe from first principles

Physical Review B, 82(15).

By: Z. Rak*, S. Mahanti*, K. Mandal* & N. Fernelius*

Contributors: Z. Rak*, S. Mahanti*, K. Mandal* & N. Fernelius*

Source: ORCID
Added: September 11, 2019

2010 journal article

Electronic structure of Ti, Zr, Hf and Sn containing garnets - Materials for immobilization of actinides

Geochimica Et Cosmochimica Acta, 74(12), A845.

By: Z. Rak, R. Ewing & U. Becker

Contributors: Z. Rak, R. Ewing & U. Becker

Source: ORCID
Added: September 11, 2019

2009 journal article

ChemInform Abstract: Synthesis, Magnetism and Electronic Structure of YbNi2-xFexAl8(x = 0.91) Isolated from Al Flux.

ChemInform, 40(11).

Source: ORCID
Added: September 11, 2019

2009 journal article

Scanning tunneling microscopy study of the CeTe3 charge density wave

Physical Review B, 79(8).

author keywords: band structure; cerium alloys; charge density waves; Fourier transforms; scanning tunnelling microscopy; surface charging; tellurium alloys
Source: ORCID
Added: September 11, 2019

2008 journal article

Electronic structure of substitutional defects and vacancies in GaSe

Journal of Physics and Chemistry of Solids, 70(2), 344–355.

By: Z. Rak*, S. Mahanti*, K. Mandal* & N. Fernelius*

Contributors: Z. Rak*, S. Mahanti*, K. Mandal* & N. Fernelius*

author keywords: Semiconductors; Ab initio calculations; Defects; Electronic structure
Source: ORCID
Added: September 11, 2019

2008 journal article

Theoretical studies of defects states in GaSe and GaTe

Hard X-Ray, Gamma-Ray, and Neutron Detector Physics X, 7079.

By: Z. Rak*, S. Mahanti*, K. Mandal*, N. Fernelius*, A. Burger, L. Franks, R. James

Contributors: Z. Rak*, S. Mahanti*, K. Mandal*, N. Fernelius*, A. Burger, L. Franks, R. James

author keywords: defects; wide gap semiconductors; ab initio calculations; electronic structure
Source: ORCID
Added: September 11, 2019

2007 journal article

Electronic structure of Cd, In, Sn substitutional Defects in GaSe

In, Sn Substitutional Defects in GaSe', MRS Proceedings, 994.

By: Z. Rak*, S. Mahanti*, K. Mandal* & N. Fernelius*

Source: ORCID
Added: September 11, 2019

2007 chapter

Electronic structure of Cd, In, Sn substitutional defects in GaSe

In Semiconductor Defect Engineering-Materials, Synthetic Structures and Devices II (Vol. 994, pp. 73–78).

By: Z. Rak, S. Mahanti, K. Mandal, N. Fernelius, S. Ashok, J. Chevallier, P. Kiesel, T. Ogino

Contributors: Z. Rak, S. Mahanti, K. Mandal, N. Fernelius, S. Ashok, J. Chevallier, P. Kiesel, T. Ogino

Source: ORCID
Added: September 11, 2019

2007 conference paper

Electronic structure of Cd, In, Sn substitutional defects in GaSe

Materials Research Society Symposium Proceedings, 994, 73–78. http://www.scopus.com/inward/record.url?eid=2-s2.0-45749109334&partnerID=MN8TOARS

By: Z. Rak, S. Mahanti, K. Mandal & N. Fernelius

Contributors: Z. Rak, S. Mahanti, K. Mandal & N. Fernelius

Source: ORCID
Added: September 11, 2019

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