A PRACTICAL METHOD TO DERIVE CANONICAL TRANSFORMATIONS IN A CLOSED FORM AND IT'S APPLICATION TO AN ANTIRESONANT ELECTRON-PHONON-SYSTEM.SIGMUND E.1977; Z. NATURFORSCH., A; DTSCH.; DA. 1977; VOL. 32; NO 2; PP. 113-118; BIBL. 9 REF.Article

THE T-T JAHN-TELLER SYSTEM: SOLUTION OF THE FUNDAMENTAL COMBINATORIAL PROBLEM AND ITS APPLICATION TO MOMENTS AND ZERO PHONON LINE.SIGMUND E.1976; Z. NATURFORSCH., A; DTSCH.; DA. 1976; VOL. 31; NO 8; PP. 904-910; BIBL. 5 REF.Article

OCCUPATION DYNAMICS OF AN E-E JAHN-TELLER SYSTEM.SIGMUND E.1977; Z. PHYS. B; DTSCH.; DA. 1977; VOL. 26; NO 3; PP. 239-244; BIBL. 11 REF.Article

DYNAMICAL JAHN-TELLER SYSTEMS: INTERNAL ENERGY RESONANCE STRUCTURES OF ISOLATED JAHN-TELLER MOLECULES (E-B AND T-T SYSTEM)SIGMUND E; BRUEHL S.1981; Z. NATURFORSCH., A; ISSN 0340-4811; DEU; DA. 1981; VOL. 36; NO 7; PP. 685-693; BIBL. 13 REF.Article

Push-button analysis aids study of leading-edge battery technologySIGMUND, E.Chemtech. 1999, Vol 29, Num 11, pp 13-16, issn 0009-2703Article

E-E JAHN-TELLER SYSTEM: OPTICAL RESPONSE STUDIES.RUEFF M; SIGMUND E.1977; PHYS. STATUS SOLIDI, B; ALLEM.; DA. 1977; VOL. 80; NO 1; PP. 215-223; ABS. ALLEM.; BIBL. 16 REF.Article

THE INFLUENCE OF THE DYNAMIC JAHN-TELLER EFFECT ON THE PHONON-SCATTERING MECHANISM AT ACCEPTORS IN SEMICONDUCTORS WITH CUBIC SYMMETRYSIGMUND E; LASSMANN K.1982; PHYSICA STATUS SOLIDI. (B). BASIC RESEARCH; ISSN 0370-1972; DDR; DA. 1982; VOL. 111; NO 2; PP. 631-637; ABS. GER; BIBL. 18 REF.Article

DYNAMIC TREATMENT OF QUENCHING-FACTORS (HAM-FACTORS) FOR THE LINEAR E-E JAHN-TELLER PROBLEM.SIGMUND E; WAGNER M; BIRKHOLD M et al.1977; SOLID STATE COMMUNIC.; G.B.; DA. 1977; VOL. 22; NO 11; PP. 719-720; BIBL. 9 REF.Article

EXPONENTIAL TRANSFORMATIONS FOR THE HARMONIC CHAIN WITH A MOLECULAR DEFECT.BRUHL S; SIGMUND E; WAGNER M et al.1977; ANN. PHYS.; DTSCH.; DA. 1977; VOL. 34; NO 3; PP. 219-228; ABS. ALLEM.; BIBL. 11 REF.Article

EXPONENTIAL TRANSFORMATIONS IN LATTICE DYNAMICS.BRUHL S; SIGMUND E; WAGNER M et al.1977; ANN. PHYS.; DTSCH.; DA. 1977; VOL. 34; NO 1; PP. 73-80; ABS. ALLEM.; BIBL. 7 REF.Article

Gutzwiller and slave-boson methods for intersite Coulomb interactionsSEIBOLD, G; SIGMUND, E.Zeitschrift für Physik. B, Condensed matter. 1996, Vol 101, Num 3, pp 405-410, issn 0722-3277Article

Metal-insulator transition in doped bismuthate superconductorsSEIBOLD, G; SIGMUND, E.Solid state communications. 1993, Vol 86, Num 8, pp 517-521, issn 0038-1098Article

Nonlinear electron-phonon dynamics: the appearance of solitary excitations and localized modesRUCKH, R; SIGMUND, E.Physical review. B, Condensed matter. 1987, Vol 35, Num 9, pp 4380-4388, issn 0163-1829Article

Influence of elastic and magnetic fields on the phonon scattering and thermal conductivity of acceptor defects in cubic semiconductorsMAIER, J; SIGMUND, E.Physical review. B, Condensed matter. 1986, Vol 34, Num 2, pp 1148-1159, issn 0163-1829Article

Optical transitions between vibronic statesSCHWENDIMANN, P; SIGMUND, E.Journal of physics. C. Solid state physics. 1986, Vol 19, Num 30, pp 5975-5986, issn 0022-3719Article

Large polarons in the discrete SSH modelRUCKH, R; SIGMUND, E.Physica status solidi. B. Basic research. 1988, Vol 147, Num 1, pp 229-235, issn 0370-1972Article

Nonequilibrium phonons in insulating crystals: derivation of a quantum mechanical Boltzmann equation for coupled electron phonon systemsRUCKH, R; SIGMUND, E.Physica, B + C. 1986, Vol 141, Num 2, pp 171-184, issn 0378-4363Article

G-TENSOR ANALYSIS OF S^- AND SE^- CENTERS IN CUBIC CRYSTALSBILL H; DOHRER D; SCHWAN L et al.1980; SOLID STATE COMMUN.; ISSN 0038-1098; USA; DA. 1980; VOL. 34; NO 5; PP. 383-384; BIBL. 5 REF.Article

Phase diagrams for magnetic order and conductivity in high-T_c materialsHIZHNYAKOV, V; SIGMUND, E.Materials letters (General ed.). 1990, Vol 9, Num 11, pp 425-429, issn 0167-577XArticle

A model for quasi-resonant phonon propagationRUCKH, R; SIGMUND, E.Journal of physics. C. Solid state physics. 1986, Vol 19, Num 15, pp 2637-2648, issn 0022-3719Article

Coherent emission processes through vibronic levelsSCHWENDIMANN, P; SIGMUND, E.Solid state communications. 1984, Vol 50, Num 4, pp 379-382, issn 0038-1098Article

UNTERSUCHUNGEN ZUR ¹³¹I-FIBRINOGEN-AUF NAHME DURCH DAS YOSHIDA-SARKOM DER RATTE = RECHERCHES SUR LA FIXATION DE FIBRINOGENE MARQUE AU ¹³¹I PAR LE SARCOME DE YOSHIDA DU RATHEYES H; HILGARD P; SIGMUND E et al.1973; FORTSCHR. GEB. ROENTGENSTRAHL. NUKLEARMED.; DTSCH.; DA. 1973; VOL. 118; NO 1; PP. 86-91; ABS. ANGL.; BIBL. 9 REF.Serial Issue

On the importance of abnisotropic exchange coupling on to the structure of spin-polarized clusters in layered cupratesEREMIN, M. V; SIGMUND, E.Solid state communications. 1994, Vol 90, Num 12, pp 795-797, issn 0038-1098Article

On the importance of anisotropic exchange coupling on to the structure of spin-polarized clusters in layered cupratesEREMIN, M. V; SIGMUND, E.Solid state communications. 1994, Vol 91, Num 5, pp 367-370, issn 0038-1098Article

Transitive coupled electron-phonon systemsSCHNEIDER, M; SIGMUND, E.Physica. B, Condensed matter. 1993, Vol 183, Num 1-2, pp 57-69, issn 0921-4526Article