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Stocks GM, Ujfalussy B, Wang X, Nicholson DMC, Shelton WA, Wang Y, Canning A, Györffy BL. Towards a constrained local moment model for first principles spin dynamics. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/13642819808206775] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- G. M. Stocks
- a Oak Ridge National Laboratory , Oak Ridge , Tennessee , 37831 , USA
| | - B. Ujfalussy
- a Oak Ridge National Laboratory , Oak Ridge , Tennessee , 37831 , USA
| | - Xindong Wang
- a Oak Ridge National Laboratory , Oak Ridge , Tennessee , 37831 , USA
| | | | - W. A. Shelton
- a Oak Ridge National Laboratory , Oak Ridge , Tennessee , 37831 , USA
| | - Yang Wang
- b Pittsburgh Supercomputing Center , Pittsburgh , Pennsylvania , 15213 , USA
| | - A. Canning
- c National Energy Research Supercomputer Center, Lawrence Berkeley National Laboratory , Berkeley , California , 94720 , USA
| | - B. L. Györffy
- d H. H. Wills Physics Laboratory , University of Bristol , Bristol , England
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Costa AT, Muniz RB, Mills DL. Ground state of magnetic dimers on metal surfaces. PHYSICAL REVIEW LETTERS 2005; 94:137203. [PMID: 15904024 DOI: 10.1103/physrevlett.94.137203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2004] [Indexed: 05/02/2023]
Abstract
We present model studies of the ground state for magnetic dimers on metal surfaces. We find it can be neither ferromagnetic nor antiferromagnetic, but is often canted for nearest neighbors. Thus, the system cannot be described using bilinear exchange. We give a criterion which can be used quite generally to interrogate the local stability of ferromagnetically or antiferromagnetically aligned dimers, and which also may be used to infer the canting angle when canted states are stable.
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Affiliation(s)
- A T Costa
- Departamento de Ciências Exatas, Universidade Federal de Lavras, 37200-000 Lavras, Minas Gerais, Brazil
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Holden AJ, You MV. Magnetism in transition metals at finite temperatures. II. Application to the thermodynamic excitations in iron: spin waves and TC. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/12/1/017] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Pindor AJ, Staunton J, Stocks GM, Winter H. Disordered local moment state of magnetic transition metals: a self-consistent KKR CPA calculation. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/13/5/012] [Citation(s) in RCA: 200] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Holden AJ, Heine V, Samson JH. Magnetic contributions to thermal expansion of transition metals: implications for local moments above Tc. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/14/4/022] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Haydock R, Nex CMM. Comparison of quadrature and termination for estimating the density of states within the recursion method. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0022-3719/17/27/008] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Haines EM, Heine V, Ziegler A. Photoemission from ferromagnetic metals above the Curie temperature. I. Simple models. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/15/3/018] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kubler J, Hock KH, Sticht J, Williams AR. Density functional theory of non-collinear magnetism. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/18/3/018] [Citation(s) in RCA: 274] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Haines EM, Heine V, Ziegler A. Photoemission from ferromagnetic metals above the Curie temperature. II. Cluster calculations for nickel. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/16/9/026] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Sandratskii LM, Guletskii PG. Symmetrised method for the calculation of the band structure of noncollinear magnets. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0305-4608/16/2/002] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Antropov VP, Katsnelson MI, Harmon BN, Kusnezov D. Spin dynamics in magnets: Equation of motion and finite temperature effects. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:1019-1035. [PMID: 9985370 DOI: 10.1103/physrevb.54.1019] [Citation(s) in RCA: 99] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Smirnov AV, Bratkovsky AM. Random magnetic order in Al-Mn liquids. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:8515-8520. [PMID: 9982357 DOI: 10.1103/physrevb.53.8515] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sabiryanov RF, Bose SK, Mryasov ON. Effect of topological disorder on the itinerant magnetism of Fe and Co. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:8958-8973. [PMID: 9977535 DOI: 10.1103/physrevb.51.8958] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Uhl M, Sandratskii LM, Kübler J. Spin fluctuations in gamma -Fe and in Fe3Pt Invar from local-density-functional calculations. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:291-301. [PMID: 9974542 DOI: 10.1103/physrevb.50.291] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Sandratskii LM, Kübler J. Local magnetic moments in bcc Co. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:5854-5860. [PMID: 10004534 DOI: 10.1103/physrevb.47.5854] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Knieriem ML, Klebanoff LE. Persistence of atomic magnetism in the paramagnetic phase of chromium. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:11668-11675. [PMID: 9996937 DOI: 10.1103/physrevb.43.11668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Shen Z, Allen JW, Lindberg PA, Dessau DS, Wells BO, Borg A, Ellis W, Kang JS, Oh S, Lindau I, Spicer WE. Photoemission study of CoO. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:1817-1828. [PMID: 9995615 DOI: 10.1103/physrevb.42.1817] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Stollhoff G, Oles AM, Heine V. Stoner exchange interaction in transition metals. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 41:7028-7041. [PMID: 9992960 DOI: 10.1103/physrevb.41.7028] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Stoeffler D, Gautier F. Electronic Structure, Magnetic Order and Interlayer Magnetic Couplings in Metallic Superlattices. ACTA ACUST UNITED AC 1990. [DOI: 10.1143/ptps.101.139] [Citation(s) in RCA: 87] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The general trends for the electronic structure of perfect model superlattices AmBn are calculated using a real-space tight-binding model. The magnetic moments distribution and the interlayer magnetic couplings between ferromagnetic layers Am (A=Fe or Co) coupled by non-magnetic (B=V or Ru), nearly ferromagnetic (B=Pd) or antiferromagnetic (B=Cr) spacer layers Bn are obtained as a function of the spacer thickness n.
In a first part, we present the model we used for the calculation and the crystallographic structure of the considered superlattices (Fe/V, Fe/Cr, Co/Ru and Co/Pd). These considerations will be applied to the non-magnetic and nearly ferromagnetic cases to derive general trends for the magnetic interlayers couplings.
In a second part, we apply the method we presented previously to the superlattices with an antiferromagnetic spacer (Fe3Crn). Using first a “d” band calculation we show that the interlayer coupling energy can be understood in terms of a strong interfacial antiferromagnetic coupling and of a constrained magnetic wall in the Cr layer giving a rapidly oscillating coupling energy. An extension of the previous calculation taking into account the “spd” hybridization does not affect the previous conclusion. Finally we examine the distribution of magnetic moments and the stability of tilted antiferromagnetic Cr layers and we find that this magnetic structure is nearly degenerate with the collinear antiferromagnetic arrangement.
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Affiliation(s)
- Daniel Stoeffler
- I.P.C.M.S.-GEMME (U.M.R. 46 C.N.R.S.), Université Louis Pasteur, 67070 Strasbourg, France
| | - François Gautier
- I.P.C.M.S.-GEMME (U.M.R. 46 C.N.R.S.), Université Louis Pasteur, 67070 Strasbourg, France
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Haines EM, Clauberg R, Feder R. Short-range magnetic order near the Curie temperature iron from spin-resolved photoemission. PHYSICAL REVIEW LETTERS 1985; 54:932-934. [PMID: 10031658 DOI: 10.1103/physrevlett.54.932] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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