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Mishra SN, Mohanta SK, Davane SM, Kulkarni N, Ayyub P. Lattice size induced moment formation on isolated Fe atoms in nanocrystalline Nb. PHYSICAL REVIEW LETTERS 2010; 105:147203. [PMID: 21230864 DOI: 10.1103/physrevlett.105.147203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Indexed: 05/30/2023]
Abstract
Measurements of the local susceptibility and 3d spin relaxation rate for single Fe impurities embedded in a nanocrystalline Nb host indicates the emergence of a local moment on Fe at and below a critical size of 11 nm. Our ab initio electronic structure calculations show that the moment formation occurs due to Stoner enhancement arising from a size dependent lattice expansion and a consequent shift in the Fermi level. We also show that a size-induced positive host spin polarization of the Nb-4d band electrons strongly influences the fluctuation rate of the Fe moment.
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Affiliation(s)
- S N Mishra
- Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai-400005, India
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Matea I, Georgiev G, Daugas JM, Hass M, Neyens G, Astabatyan R, Baby LT, Balabanski DL, Bélier G, Borremans D, Goldring G, Goutte H, Himpe P, Lewitowicz M, Lukyanov S, Méot V, Santos FDO, Penionzhkevich YE, Roig O, Sawicka M. Magnetic moment of the fragmentation-aligned 61Fe (9/2(+)) isomer. PHYSICAL REVIEW LETTERS 2004; 93:142503. [PMID: 15524786 DOI: 10.1103/physrevlett.93.142503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2004] [Indexed: 05/24/2023]
Abstract
We report on the g factor measurement of an isomer in the neutron-rich (61)(26)Fe (E(*)=861 keV and T(1/2)=239(5) ns). The isomer was produced and spin aligned via a projectile-fragmentation reaction at intermediate energy, the time dependent perturbed angular distribution method being used for the measurement of the g factor. For the first time, due to significant improvements of the experimental technique, an appreciable residual alignment of the nuclear spin ensemble has been observed, allowing a precise determination of its g factor, including the sign: g=-0.229(2). In this way we open the possibility to study moments of very neutron-rich short-lived isomers, not accessible via other production and spin-orientation methods.
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Affiliation(s)
- I Matea
- GANIL, BP 55027, 14076 Caen Cedex 5, France
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Sun Q, Wang Q, Yu JZ, Li ZQ, Wang JT, Kawazoe Y. Local Magnetism of 3d and 4d Impurities in Ag and Pd Clusters. ACTA ACUST UNITED AC 1997. [DOI: 10.1051/jp1:1997120] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Sun Q, Gong XG, Zheng QQ, Sun DY, Wang GH. Local magnetic properties and electronic structures of 3d and 4d impurities in Cu clusters. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:10896-10904. [PMID: 9984888 DOI: 10.1103/physrevb.54.10896] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Nogueira RN, Petrilli HM. Local properties at Fe and Co impurities in Nb1-xMox alloys. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:15071-15078. [PMID: 9983304 DOI: 10.1103/physrevb.53.15071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Papanikolaou N, Stefanou N, Zeller R, Dederichs PH. Magnetic behavior of transition-metal impurities in alkali-earth metals. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:11473-11478. [PMID: 9977877 DOI: 10.1103/physrevb.51.11473] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Krishnamurthy VV, Mishra SN, Press MR, Devare SH. Local magnetism of dilute Ce impurities in U metal: Role of Ce-4f, host-f electron interaction on 4f spin fluctuations. PHYSICAL REVIEW LETTERS 1995; 74:1661-1664. [PMID: 10059085 DOI: 10.1103/physrevlett.74.1661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Beuerle T, Hummler K, Elsässer C, Fähnle M. Formation of magnetic moments on iron impurities in transition-metal hosts. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:8802-8810. [PMID: 10009662 DOI: 10.1103/physrevb.49.8802] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Frota-Pessôa S, Petrilli HM, Klautau AB. First-principles calculations for interstitial Fe impurities in hcp Sc, Y, Ti, and Zr. PHYSICAL REVIEW LETTERS 1993; 71:4206-4209. [PMID: 10055183 DOI: 10.1103/physrevlett.71.4206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Koicki S, Cekic B, Ivanovic N, Manasijevic M, Babic D. Evidence for a hybridization-induced electric quadrupole interaction in the intermetallic compound Hf2Fe. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:9291-9297. [PMID: 10007163 DOI: 10.1103/physrevb.48.9291] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Petrilli HM, Frota-Pessôa S. First-principles real-space calculations of Fe impurities in Mo and Nb. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:7148-7153. [PMID: 10006884 DOI: 10.1103/physrevb.48.7148] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Dupuis V, Maurer M, Piecuch M, Ravet MF, Dekoster J, Andrieu S, Bobo JF, Baudelet F, Bauer P, Fontaine A. Structure and magnetism of Mn/Ru and Mn/Fe/Mn/Ru superlattices prepared by molecular-beam epitaxy. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:5585-5593. [PMID: 10009076 DOI: 10.1103/physrevb.48.5585] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Press MR, Mishra SN, Devare SH, Devare HG. Magnetic properties of isolated Rh and Ru impurities in Pd and Pd-Fe: A theoretical study. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:14988-14997. [PMID: 10005872 DOI: 10.1103/physrevb.47.14988] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Khatua S, Mishra SN, Devare SH, Devare HG. Spin fluctuation and local magnetism of isolated Rh ions in paramagnetic dilute PdFe alloys. PHYSICAL REVIEW LETTERS 1992; 68:1038-1041. [PMID: 10046062 DOI: 10.1103/physrevlett.68.1038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Guenzburger D, Ellis DE. Magnetism of Fe impurities in alkaline-earth metals and Al. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 45:285-294. [PMID: 10000177 DOI: 10.1103/physrevb.45.285] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Gross KD, Riegel D, Zeller R. Magnetic-moment formation and spin dynamics of isolated 4d ions in palladium. PHYSICAL REVIEW LETTERS 1990; 65:3044-3047. [PMID: 10042765 DOI: 10.1103/physrevlett.65.3044] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Seeger S, Bertschat HH, Biedermann KH, Biersack JP, Haas H, Kowallik R, Mahnke H, Müller W, Zeitz W. Lattice-site determination by magnetic hyperfine interaction for implanted 54Fe ions in alpha - and gamma -cerium. PHYSICAL REVIEW LETTERS 1990; 64:2695-2698. [PMID: 10041786 DOI: 10.1103/physrevlett.64.2695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Mishra SN, Gross KD, Büermann L, Luszik-Bhadra M, Riegel D. Magnetism of dilute Fe ions in solid and liquid Hg: Is it governed by the interaction of Fe 3d with Hg 5d band electrons? PHYSICAL REVIEW LETTERS 1989; 63:2594-2597. [PMID: 10040935 DOI: 10.1103/physrevlett.63.2594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Gross KD, Riegel D, Zeller R. Experimental and theoretical study of the magnetism and local lattice structure of d ions in alkali-metal hosts. PHYSICAL REVIEW LETTERS 1989; 63:1176-1179. [PMID: 10040489 DOI: 10.1103/physrevlett.63.1176] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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