2010 journal article

Ion-current diode with aqueous Gel/SiO2 nanofilm interfaces

Small (Weinheim An Der Bergstrasse, Germany), 6(13), 1393–1397.

By: H. Koo, S. Chang & O. Velev

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

2006 journal article

Importance of the O-M-O bridges (M = V5+, Mo6+) for the spin-exchange interactions in the magnetic oxides of Cu2+ ions bridged by MO4 tetrahedra: Spin-lattice models of Rb2Cu2(MoO4)(3), BaCu2V2O8, and KBa3Ca4Cu3V7O28

INORGANIC CHEMISTRY, 45(11), 4440–4447.

By: H. Koo* & M. Whangbo n

TL;DR: This study shows that the O-M-O bridges (M = V5+, Mo6+) between the magnetic ions Cu2+, provided by the MO4 tetrahedra, are crucial for the spin-exchange interactions and hence for deducing thespin-lattice models needed to interpret the magnetic properties of these oxides. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Importance of supersuperexchange interactions in determining the dimensionality of magnetic properties. Determination of strongly interacting spin exchange paths in A(2)CU(PO4)(2) (A = Ba, Sr), ACuP(2)O(7) (Ba, Ca, Sr, Pb), CaCuGe2O6, and Cu2UO2(PO4)(2) on the basis of qualitative spin dimer analysis

INORGANIC CHEMISTRY, 44(12), 4359–4365.

By: H. Koo*, D. Dai n & M. Whangbo n

TL;DR: Supersuperexchange interactions are found to be crucial in determining the dimensionality of magnetic properties of these magnetic oxides. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Understanding the color properties of (C5H9NH3)(2)CuBr4 in high magnetic fields

PHYSICAL REVIEW B, 71(17).

Source: Web Of Science
Added: August 6, 2018

2004 journal article

Investigation of the origin of the empirical relationship between refractive index and density on the basis of first principles calculations for the refractive indices of various TiO2 phases

INORGANIC CHEMISTRY, 43(7), 2246–2251.

By: X. Rocquefelte n, F. Goubin n, H. Koo n, M. Whangbo n & S. Jobic n

TL;DR: This study indicates that the major factor influencing n in a series of closely related systems is the structure compactness, and suggests a way of preparing new UV absorbers with low refractive index. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Spin dimer and classical spin analyses of the ordered magnetic structures of alkali iron pyrophosphates NaFeP2O7 and LiFeP2O7

Dalton Transactions (Cambridge, England : 2003), (19), 3019–3025.

By: M. Whangbo, D. Dai & H. Koo

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

2003 journal article

A discussion on the apparently puzzling structural, electrical and magnetic properties of BaVS3

JOURNAL OF SOLID STATE CHEMISTRY, 175(2), 384–388.

By: M. Whangbo n, H. Koo n, D. Dai n & A. Villesuzanne*

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Analysis of the spin exchange interactions of ferromagnetic CdVO3 in terms of first principles and qualitative electronic structure calculations

JOURNAL OF SOLID STATE CHEMISTRY, 175(2), 341–347.

By: D. Dai n, H. Koo n & M. Whangbo n

Source: Web Of Science
Added: August 6, 2018

2003 journal article

Metal-ligand bonding and rutile- versus CdI2-type structural preference in platinum dioxide and titanium dioxide

JOURNAL OF SOLID STATE CHEMISTRY, 175(2), 353–358.

By: C. Soulard*, X. Rocquefelte*, S. Jobic*, D. Dai n, H. Koo n & M. Whangbo n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Consequence of the metal-atom clustering on the magnetic properties in vanadium sulfide V5S8

JOURNAL OF SOLID STATE CHEMISTRY, 160(1), 287–291.

By: H. Koo n, D. Seo n & M. Whangbo n

Source: Web Of Science
Added: August 6, 2018

2001 journal article

Crystal structure, physical properties and electronic structure of a new organic conductor beta ''-(BEDT-TTF)(2)SF5CHFCF2SO3

JOURNAL OF MATERIALS CHEMISTRY, 11(8), 2008–2013.

By: J. Schlueter*, B. Ward*, U. Geiser*, H. Wang*, A. Kini*, J. Parakka*, E. Morales*, H. Koo n ...

Source: Web Of Science
Added: August 6, 2018

2001 journal article

Electronic structure study of scanning tunneling microscopy images of the rutile TiO2(110) surface and their implications on the surface relaxation

SURFACE SCIENCE, 473(3), 193–202.

By: D. Jung*, H. Koo n, D. Dai n & M. Whangbo n

author keywords: semi-empirical models and model calculations; scanning tunneling microscopy; titanium oxide; single crystal surfaces
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Electronic transitions in doped and undoped copper germanate

CHEMISTRY OF MATERIALS, 13(3), 939–944.

By: G. Rudko, V. Long, J. Musfeldt, H. Koo*, M. Whangbo*, A. Revcolevschi, G. Dhalenne, D. Bernholdt*

Source: Web Of Science
Added: August 6, 2018

2001 journal article

Examination of the anisotropic spin exchange interactions of CuM2O6 (M = Sb, V, Nb) by spin dimer analysis

JOURNAL OF SOLID STATE CHEMISTRY, 156(1), 110–116.

By: H. Koo n & M. Whangbo n

Source: Web Of Science
Added: August 6, 2018

2001 journal article

Infrared and optical properties of beta '-(ET)(2)SF5CF2SO3: Evidence for a 45 K spin peierls transition

CHEMISTRY OF MATERIALS, 13(4), 1326–1333.

By: J. Pigos, B. Jones, Z. Zhu, J. Musfeldt, C. Homes*, H. Koo*, M. Whangbo*, J. Schlueter ...

Source: Web Of Science
Added: August 6, 2018

2001 journal article

Long-range magnetic order in Mn[N(CN)(2)](2)(pyz) {pyz =pyrazine} susceptibility, magnetization, specific heat, and neutron diffraction measurements and electronic structure calculations

Journal of the American Chemical Society, 123(1), 162–172.

By: J. Manson n, Q. Huang n, J. Lynn n, H. Koo n, M. Whangbo n, R. Bateman n, T. Otsuka n, N. Wada n, D. Argyriou n, J. Miller n

TL;DR: Using dc magnetization, ac susceptibility, specific heat, and neutron diffraction, this work has studied the magnetic properties of Mn[N(CN)2]2(pyz) (pyz = pyrazine) in detail and indicates that the exchange interaction is much stronger along the Mn-pyz-Mn chain axis than along themn-NCNCN-Mm axes, giving rise to a predominantly one-dimensional magnetic system. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

On the origin of the root 7 x root 7 superstructure and the anomalous magnetic and transport properties of the layered compound Sr6V9S22O2

INORGANIC CHEMISTRY, 40(12), 2898–2904.

By: O. Gourdon, M. Evain, S. Jobic, R. Brec, H. Koo*, M. Whangbo*, B. Corraze, O. Chauvet

UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Spin dimer analysis for antiferromagnetic spin exchange interactions of magnetic solids with several unpaired electrons per spin site: Trends in the spin exchange parameters of the compounds consisting of MnF5 chains and CrX2 (X = O, S) layers

JOURNAL OF SOLID STATE CHEMISTRY, 156(2), 464–469.

By: H. Koo n, M. Whangbo n, S. Coste* & S. Jobic*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Spin dimer analysis of the anisotropic spin exchange interactions in the distorted wolframite-type oxides CuWO4, CuMoO4-III, and Cu(Mo0.25W0.(75))O-4

INORGANIC CHEMISTRY, 40(9), 2161–2169.

By: H. Koo n & M. Whangbo n

TL;DR: This study reproduces the experimental finding that the magnetic unit cell is doubled along the a- axis in CuWO(4) and along the c-axis in CuMoO4-III and predicts that the Magnetic unit cell should be doubled alongThe a- and b-axes in Cu(Mo(0.25)W0.75)O4. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Structural and electronic features of BaIrO3 causing the simultaneous occurrence of weak ferromagnetism and charge density wave formation

SOLID STATE COMMUNICATIONS, 118(10), 491–495.

By: M. Whangbo n & H. Koo n

author keywords: metals; electron-electron interactions; electron-phonon interactions
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Theoretical study of possible iridium ditelluride phases attainable under high pressure

Journal of Solid State Chemistry, 162(1), 63–68.

By: S. Jobic*, R. Brec*, A. Pasturel*, H. Koo n & M. Whangbo n

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

2001 journal article

Variance tolerancing and decomposition in short-staple spinning processes Part I: Modeling spun yarn strength through intrinsic components

Textile Research Journal, 71(1), 1–7.

By: H. Koo n, M. Suh n & J. Woo n

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

2001 journal article

Variance tolerancing and decomposition in short-staple spinning processes part II: Simulations and applications to ring and OE spun yarns

TEXTILE RESEARCH JOURNAL, 71(2), 105–111.

By: M. Suh n, H. Koo n & J. Woo n

Source: Web Of Science
Added: August 6, 2018

2000 journal article

Analysis of nearest-neighbor spin exchange interactions by molecular orbital calculations: anisotropic spin exchange interactions in MV3O7 (M = Cd, Ca, Sr) and alpha '-NaV2O5

Solid State Communications, 114(1), 27–32.

By: M. Whangbo n, H. Koo n & K. Lee*

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

2000 journal article

Analysis of the spin exchange interactions in the extended magnetic solids K2NiF4, K2CuF4, La2CuO4, Nd2CuO4, KNiF3, and KCuF3

JOURNAL OF SOLID STATE CHEMISTRY, 151(1), 96–101.

By: H. Koo n & M. Whangbo*

author keywords: spin exchange interactions; magnetically ordered materials; extended Huckel molecular orbital calculations
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Analysis of the spin exchange interactions in the three phases of vanadium pyrophosphate, (VO)(2)P2O7, in terms of spin-orbital interaction energy

INORGANIC CHEMISTRY, 39(16), 3599–3604.

By: H. Koo n & M. Whangbo n

TL;DR: The spin exchange interactions in the ambient-pressure orthorhombic (APO), high-pressure Orthorhombs (HPO), and ambient- pressure monoclinic ( APM) phases of the vanadium pyrophosphate, (VO)2P2O7, were analyzed by calculating the spin-orbital interaction energies delta e-delta e0 of their spin dimers. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Electronic band structure study of A(2)Mo(9)S(11) (A=K, Rb) and K1.8Mo9S11

JOURNAL OF SOLID STATE CHEMISTRY, 155(1), 124–128.

By: H. Koo n, M. Whangbo n, S. Picard*, S. Jobic*, M. Potel* & P. Gougeon*

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Investigation of the spin exchange interactions in the nanotube system Na2V3O7 by spin dimer analysis

SOLID STATE COMMUNICATIONS, 115(12), 675–678.

By: M. Whangbo n & H. Koo n

author keywords: nanostructures; crystal structure and symmetry; spin-orbit effects
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Investigations of the Fermi surface of a new organic metal: (BEDT-TTF)(4)[Ni(dto)(2)]

EUROPHYSICS LETTERS, 51(1), 82–88.

By: M. Schiller*, W. Schmidt*, E. Balthes*, D. Schweitzer*, H. Koo n, M. Whangbo n, I. Heinen*, T. Klausa*, P. Kircher*, W. Strunz*

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Ligand influences on the structures of molybdenum oxide networks

Inorganic Chemistry, 39(19), 4311–4317.

By: P. Hagrman, R. Laduca, H. Koo, R. Rarig, R. Haushalter, M. Whangbo, J. Zubieta

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

2000 journal article

Molecular self-assembly on surfaces of organic conducting salts: Epitaxial monolayer films of naphthalene on the (001) surface of (TMTSF)(2)PF6

JOURNAL OF PHYSICAL CHEMISTRY B, 104(31), 7394–7402.

By: P. Bartlett n, J. Essex n, H. Koo n, I. Nandhakumar n, N. Robertson n & M. Whangbo n

Source: Web Of Science
Added: August 6, 2018

2000 journal article

Optical spectra and electronic band structure calculations of beta ''-(ET)(2)SF5RSO3 (R = CH2CF2, CHFCF2, and CHF): Changing electronic properties by chemical tuning of the counterion

CHEMISTRY OF MATERIALS, 12(8), 2490–2495.

By: B. Jones, I. Olejniczak, J. Dong, J. Pigos, Z. Zhu, A. Garlach, J. Musfeldt, H. Koo* ...

Source: Web Of Science
Added: August 6, 2018

2000 journal article

Origin of the spin gap in sodium vanadium bronze Na9V14O35

SOLID STATE COMMUNICATIONS, 115(3), 115–119.

By: M. Whangbo n & H. Koo n

author keywords: magnetically ordered materials; exchange and superexchange; phase transitions
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Spin dimer analysis of the spin exchange interactions of the vanadium oxides AV(4)O(9) (A = Ca, Sr, Cs-2, NH2(CH2)(4)NH2)

JOURNAL OF SOLID STATE CHEMISTRY, 153(2), 263–269.

By: H. Koo n & M. Whangbo n

Source: Web Of Science
Added: August 6, 2018

2000 journal article

Study of the 18-electron band gap and ferromagnetism in semi- Heusler compounds by nea-spin-polarized electronic band structure calculations

Journal of Molecular Structure [Including Theochem], 527(2000 Aug. 4), 113–119.

By: D. Jung, H. Koo & M. Whangbo

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

2000 journal article

Synthesis and crystal structure determination of a new pressure-induced iridium ditelluride phase, m-IrTe2, and comparison of the crystal structures and relative stabilities of various IrTe2 polymorphs

INORGANIC CHEMISTRY, 39(19), 4370–4373.

By: S. Jobic*, R. Brec*, C. Chateau*, J. Haines*, J. Leger*, H. Koo*, M. Whangbo*

TL;DR: The new monoclinic IrTe2 phase m-IrTe2 was synthesized under pressure, and its structure was determined by X-ray powder diffraction, and is expected to be nearly as stable as that of the CdI2-type Ir Te2. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Analysis of bonding and d-electron count in the transition-metal carbides and transition-metal-silicide carbides with discrete linear M-C-M units (M = Cr, Fe, Re) by electronic structure calculations

INORGANIC CHEMISTRY, 38(9), 2204–2210.

By: H. Koo n & M. Whangbo n

TL;DR: It is shown that the M-C bonds of the M -C-M units exist as double bonds and there is significant bonding in the interlayer Si. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Analysis of the spin-spin interactions in layered oxides alpha '-NaV2O5, CaV2O5 and MgV2O5 and the spin-Peierls distortion in alpha '-NaV2O5 by molecular orbital, Madelung energy and bond valence sum calculations

SOLID STATE COMMUNICATIONS, 111(7), 353–360.

By: H. Koo n & M. Whangbo n

author keywords: magnetically ordered materials; semiconductors; electronic states (localized); exchange and superexchange; phase transitions
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Calculations and analysis of the electronic structures of transition-metal phosphosilicides Cu4SiP8, IrSi3P3, CoSi3P3, and FeSi4P4

JOURNAL OF SOLID STATE CHEMISTRY, 147(1), 11–18.

By: K. Lee*, H. Koo n, J. Ren n & M. Whangbo n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Development of optimal HVI strength index for prediction of yarn tensile strength

Beltwide Cotton Conferences. Proceedings, 1(1999), 706–708.

By: M. Suh, H. Koo & M. Watson

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

1999 article

High field optical response of eta-Mo4O11

Zhu, Z., Long, V. C., Musfeldt, J. L., Wei, X., Sarrao, J., Fisk, Z., … Whangbo, M. H. (1999, December). JOURNAL DE PHYSIQUE IV, Vol. 9, pp. 251–253.

By: Z. Zhu*, V. Long*, J. Musfeldt*, X. Wei*, J. Sarrao*, Z. Fisk*, H. Negishi*, M. Inoue*, H. Koo n, M. Whangbo n

Source: Web Of Science
Added: August 6, 2018

1999 journal article

In-plane ESR microwave conductivity measurements and electronic band structure studies of the organic superconductor beta ''-(BEDT-TTF)(2)SF5CH2CF2SO3

JOURNAL OF PHYSICAL CHEMISTRY B, 103(26), 5493–5499.

By: H. Wang, M. VanZile*, J. Schlueter*, U. Geiser*, A. Kini*, P. Sche*, H. Koo n, M. Whangbo n ...

Source: Web Of Science
Added: August 6, 2018

1999 journal article

Maximizing yarn and fabric strength through variance of HVI elongation

TEXTILE RESEARCH JOURNAL, 69(6), 447–456.

By: H. Koo n & M. Suh n

Source: Web Of Science
Added: August 6, 2018

1999 journal article

Polarized optical reflectance and electronic band structure of alpha '-NaV2O5

PHYSICAL REVIEW B, 60(23), 15721–15727.

By: V. Long*, Z. Zhu*, J. Musfeldt*, X. Wei*, H. Koo*, M. Whangbo*, J. Jegoudez*, A. Revcolevschi*

Source: Web Of Science
Added: August 6, 2018

1999 journal article

Spin-spin interactions in the oxides A(3)M ' MO6 (M = Rh, Ir; A = Ca, Sr; M ' = alkaline earth, Zn, Cd, Na) of the K4CdCl6 structure type examined by electronic structure calculations

INORGANIC CHEMISTRY, 38(9), 2199–2203.

By: K. Lee*, H. Koo n & M. Whangbo n

TL;DR: The calculations show that the spin-spin interactions in these oxides are three-dimensional, and the superexchange interactions occur mainly through the short intrachain and interchain M-O. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

1998 journal article

Estimation of HVI bundle modulus and toughness as determinants to tensile properties of spun yarns

Beltwide Cotton Conferences. Proceedings, 2(1998), 1530–1536.

By: M. Suh, H. Koo & M. Watson

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

1998 journal article

On the origin of the anomalous electrical resistivity of LnMo(5)O(8) (Ln = trivalent rare earth)

SOLID STATE COMMUNICATIONS, 108(8), 539–544.

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

1998 journal article

Prediction of yarn tensile properties based on HVI testing of 36 U.S. upland cottons

Beltwide Cotton Conferences. Proceedings, 1(1998), 786–790.

By: M. Suh, H. Koo & X. Cui

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

1998 journal article

Similarities and differences in the structural and electronic properties of ruthenium and iridium pyrochlores A(2)M(2)O(7-y) (M = Ru, Ir)

JOURNAL OF SOLID STATE CHEMISTRY, 136(2), 269–273.

By: H. Koo n, M. Whangbo n & B. Kennedy*

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

1997 journal article

Spinning quality/process improvement through variance tolerancing

Beltwide Cotton Conferences. Proceedings, 1(1997), 691–696.

By: M. Suh, J. Woo & H. Koo

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

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