Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Slave boson theory of orbital differentiation with crystal field effects: Application to UO2

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [1];  [4]
  1. Florida State Univ., Tallahassee, FL (United States)
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  3. Rutgers Univ., Piscataway, NJ (United States)
  4. Rutgers Univ., Piscataway, NJ (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
We derive an exact operatorial reformulation of the rotational invariant slave boson method, and we apply it to describe the orbital differentiation in strongly correlated electron systems starting from first principles. The approach enables us to treat strong electron correlations, spin-orbit coupling, and crystal field splittings on the same footing by exploiting the gauge invariance of the mean-field equations. Furthermore, we apply our theory to the archetypical nuclear fuel UO2 and show that the ground state of this system displays a pronounced orbital differentiation within the 5f manifold, with Mott-localized Γ8 and extended Γ7 electrons.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1355902
Alternate ID(s):
OSTI ID: 1348053
OSTI ID: 1357791
Report Number(s):
IS-J--9331
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 12 Vol. 118; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (44)

Electronic structure and Coulomb correlation energy in UO2 single crystal journal February 1980
A first-order Mott transition in LixCoO2 journal August 2004
Coulomb correlations and the Wigner–Mott transition journal October 2008
First-principles calculations of the electronic structure and spectra of strongly correlated systems: dynamical mean-field theory journal September 1997
First-principles calculations of the electronic structure and spectra of strongly correlated systems: the LDA + U method journal January 1997
Crystal fields in UO 2 - revisited journal November 2010
Conductor-Insulator Quantum Phase Transitions book June 2012
Inhomogeneous Electron Gas journal November 1964
Correlation of Electrons in a Narrow s Band journal March 1965
Neutron-Diffraction Study of Antiferromagnetism in U O 2 journal November 1965
5 f -electron states in uranium dioxide investigated using high-resolution neutron spectroscopy journal July 1989
Spin-rotation-invariant slave-boson approach to the Hubbard model journal October 1989
Variational results as saddle-point approximations: The Anderson impurity model journal August 1990
Antiferromagnetism and d -wave superconductivity in cuprates: A cluster dynamical mean-field theory journal October 2000
Magnetic structure and electric-field gradients of uranium dioxide: An ab initio study journal April 2004
Behavior of actinide dioxides under pressure:  U O 2 and Th O 2 journal July 2004
Oxidation and aging in U and Pu probed by spin-orbit sum rule analysis: Indications for covalent metal-oxide bonds journal January 2006
Assessment of metageneralized gradient approximation and screened Coulomb hybrid density functionals on bulk actinide oxides journal January 2006
Structural behavior of uranium dioxide under pressure by LSDA + U calculations journal February 2007
Covalency in the actinide dioxides: Systematic study of the electronic properties using screened hybrid density functional theory journal July 2007
Rotationally invariant slave-boson formalism and momentum dependence of the quasiparticle weight journal October 2007
Equivalence of Gutzwiller and slave-boson mean-field theories for multiband Hubbard models journal November 2007
Fermi-surface evolution across the magnetic phase transition in the Kondo lattice model journal October 2008
Crystal field and magnetic structure of UO 2 journal February 2011
Electronic correlation and transport properties of nuclear fuel materials journal November 2011
Efficient implementation of the Gutzwiller variational method journal January 2012
Orbital selectivity in Hund's metals: The iron chalcogenides journal January 2013
Phonon spectrum, thermodynamic properties, and pressure-temperature phase diagram of uranium dioxide journal September 2013
Microscopic theory of the insulating electronic ground states of the actinide dioxides AnO 2 (An = U, Np, Pu, Am, and Cm) journal November 2013
Screened Coulomb interaction calculations: cRPA implementation and applications to dynamical screening and self-consistency in uranium dioxide and cerium journal March 2014
Covalency in oxidized uranium journal July 2015
Electronic structure and core-level spectra of light actinide dioxides in the dynamical mean-field theory journal August 2015
Probing 5 f -state configurations in URu 2 Si 2 with U L III -edge resonant x-ray emission spectroscopy journal July 2016
Origin of Low Thermal Conductivity in Nuclear Fuels journal June 2008
Orbital-Selective Mott Transition out of Band Degeneracy Lifting journal March 2009
Hybridization of Organic Molecular Orbitals with Substrate States at Interfaces: PTCDA on Silver journal June 2010
Orbital Specificity in the Unoccupied States of UO 2 from Resonant Inverse Photoelectron Spectroscopy journal October 2011
New Functional Integral Approach to Strongly Correlated Fermi Systems: The Gutzwiller Approximation as a Saddle Point journal September 1986
Hybrid Density-Functional Theory and the Insulating Gap of U O 2 journal December 2002
Orbital-Selective Mott Transitions in the Degenerate Hubbard Model journal May 2004
Phase Diagram and Electronic Structure of Praseodymium and Plutonium journal January 2015
Dynamical mean-field theory of strongly correlated fermion systems and the limit of infinite dimensions journal January 1996
Multipolar interactions in f -electron systems: The paradigm of actinide dioxides journal June 2009
Reconstruction of Molecular Orbital Densities from Photoemission Data journal September 2009

Cited By (14)

Connection between Mott physics and crystal structure in a series of transition metal binary compounds journal March 2019
Origins of the odd optical observables in plutonium and americium tungstates journal January 2019
Correlated materials design: prospects and challenges journal December 2018
Structural, electronic, and thermodynamic properties of curium dioxide: Density functional theory calculations journal December 2017
Dynamical mean-field theory, density-matrix embedding theory, and rotationally invariant slave bosons: A unified perspective journal December 2017
Rigorous symmetry adaptation of multiorbital rotationally invariant slave-boson theory with application to Hund's rules physics journal March 2018
Correlation-driven Lifshitz transition and orbital order in a two-band Hubbard model journal July 2018
Rotationally invariant slave-boson and density matrix embedding theory: Unified framework and comparative study on the one-dimensional and two-dimensional Hubbard model journal March 2019
Site and orbital selective correlations in β -Pu journal March 2019
Rigorous symmetry adaptation of multiorbital rotationally invariant slave-boson theory with application to Hund's rules physics text January 2017
Dynamical Mean Field Theory, Density-Matrix Embedding Theory and Rotationally Invariant Slave Bosons: a Unified Perspective text January 2017
Correlation-driven Lifshitz transition and orbital order in a two-band Hubbard model text January 2018
Correlated materials design: prospects and challenges text January 2018
Site and orbital selective correlations in $β$-Pu text January 2018

Similar Records

Orbital-dependent correlations in PuCoGa5
Journal Article · Thu Jul 26 20:00:00 EDT 2018 · Physical Review B · OSTI ID:1473655

Revealing the Nature of Antiferroquadrupolar Ordering in Cerium Hexaboride: CeB6
Journal Article · Mon Feb 18 19:00:00 EST 2019 · Physical Review Letters · OSTI ID:1495400

Pseudospin-lattice coupling in the spin-orbit Mott insulator Sr2IrO4
Journal Article · Thu Feb 14 19:00:00 EST 2019 · Physical Review B · OSTI ID:1496059