Homepage Rudi Hackl

		Raman Spectroscopy in High-Temperature Superconductors
		Walther-Meissner-Institut

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Publications

48.	L. Tassini, F. Venturini, Q.-M. Zhang, R. Hackl, T. Fujita, and N. Kikugawa Dynamical properties of charged stripes in La_2-xSr_xCuO₄ submitted (2004), cond-mat/0406169
47.	F. Venturini, R. Hackl, and U. Michelucci Comment on: "Nonmonotonic d_{x²- y²} Superconducting Order Parameter in Nd_2-xCe_xCuO₄" Phys. Rev. Lett. 90, 149701 (2003)
46.	F. Venturini, M. Opel, T.P. Devereaux, J.K. Freericks, I. Tüttö, B. Revaz, E. Walker, H. Berger, L. Forró, and R. Hackl Observation of an Unconventional Metal-Insulator Transition in Overdoped CuO₂ Compounds Phys. Rev. Lett. 89, 107003 (2002).
45.	F. Venturini, Q.-M. Zhang, R. Hackl, A. Lucarelli, S. Lupi, M. Ortolani, P. Calvani, N. Kikugawa, and T. Fujita Raman Scattering versus Infrared Conductivity: Evidence for One-Dimensional conduction in La_2-xSr_xCuO₄ Phys. Rev. B 66, 060502(R) (2002).
44.	F. Venturini, M. Opel, R. Hackl, H. Berger, L. Forró, and B. Revaz Doping dependence of the electronic Raman spectra in cuprates J. Phys. Chem. Solids 63, 2345 (2002).
43.	M. Opel, R. Nemetschek, F. Venturini, R. Hackl, I. Tüttö, H. Berger, L. Forró, A. Erb, B. Revaz, E. Walker, A Light-Scattering Study of Dynamical Carrier Properties in Cuprate Systems Ferroelectrics 249, 155 (2001).
42.	M. Opel, R. Nemetschek, C. Hoffmann, R. Philipp, P.F. Müller, R. Hackl, I. Tüttö, A. Erb, B. Revaz, E. Walker, H. Berger, L. Forró Carrier Relaxation, Pseudogap, and Superconducting Gap in High-T_c cuprates : A Raman-Scattering Study Phys. Rev. B 61, 9752 (2000).
41.	M. Opel, F. Venturini, R. Hackl, B. Revaz, H. Berger, and L. Forró Superconducting Gap and Pseudogap* in Bi-2212* Physica B, 284-288, 669 (2000)
40.	M. Opel, R. Nemetschek, F. Venturini, R. Hackl, H. Berger, and L. Forró Pseudogap and Superconducting Gap in YBa₂Cu₃O_6+x: A Raman Study J. Low. Temp. Phys. 117, 347 (1999)
39.	M. Opel, R. Nemetschek, F. Venturini, R. Hackl, A. Erb, E. Walker, H. Berger, and L. Forró Raman Spectroscopy in YBa₂Cu₃O_6+x and Bi₂Sr₂(Ca_xY_1-x)Cu₂O_8+y: Pseudogap and Superconducting Gap phys. stat. sol. (b) 215, 471 (1999)
38.	M. Opel, R. Hackl, T.P. Devereaux, A. Virosztek, A. Zawadowski, A. Erb, E. Walker, H. Berger, and L. Forró Physical Origin of the Buckling in CuO₂: Electron-Phonon Coupling and Raman Spectra Phys. Rev. B 60, 9836 (1999).
37.	T.P. Devereaux, A. Virosztek, A. Zawadowski, M. Opel, P.F. Müller, C. Hoffmann, R. Philipp, R. Nemetschek, R. Hackl, A. Erb, E. Walker, H. Berger, L. Forró Enhanced Electron-Phonon Coupling and its Irrelevance to High-T_c Superconductivity Solid State Commun. 108, 407 (1998)
36.	R. Nemetschek, R. Hackl, M. Opel, R. Philipp, M.T. Béal-Monod, J.B. Bieri, K. Maki, A. Erb, E. Walker d + s Wave Superconductivity: Analysis of the Electronic Raman Data of YBa₂Cu₃O_7-δ and Other Cuprates Eur. Phys. J. B 5, 495 (1998)
35.	R. Hackl Light Scattering from Charge and Spin Excitations in Cuprates Systems in "The Gap Symmetry and Fluctuations in High-T_c Superconductors", NATO-ASI Series, Eds. J. Bok, G. Deutscher, D. Pavuna, and S. Wolf, p. 255-296 (Plenum, New York 1998)
34.	M. Opel, R. Nemetschek, C. Hoffmann, P.F. Müller, R. Philipp, R. Hackl, H. Berger, L. Forró, A. Erb, and E. Walker Pseudogap and Superconducting Gap in the Electronic Raman Spectra of Underdoped Cuprates J. Phys. Chem. Solids 59, 1942 (1998).
33.	R. Nemetschek, M. Opel, C. Hoffmann, P.F. Müller, R. Hackl, H. Berger, L. Forro, A. Erb, and E. Walker Pseudogap and Superconducting Gap in the Electronic Raman Spectra of Underdoped Cuprates Phys. Rev. Lett. 78, 4837 (1997).
32.	R. Nemetschek, M. Opel, B. Stadlober, and R. Hackl Symmetry-Dependent Power Laws of the Electronic Raman Response in Cuprate Superconductors Proceedings of the "15^th International Conference on Raman Spectroscopy", S.A. Asher and P.B. Stein eds. p. 882 (John Wiley and Sons, New York, 1996).
31.	M. Opel, P.F. Müller, R.Nemetschek, B. Stadlober, R. Hackl, H. Berger, L. Forró A Study of Critical and Thermal Pair Breaking in Differently Doped Cu-O Superconductors by Electronic Raman Scattering Czech. J Phys. 46, Suppl. S2, 1107 (1996)
30.	Hackl, M. Opel, P.F. Müller, G. Krug, B. Stadlober, R. Nemetschek, H. Berger, and L. Forró Electronic Raman Scattering in Cuprate Systems J. Low Temp. Phys. 105, 733 (1996).
29.	R. Hackl, G. Krug, R. Nemetschek, M. Opel, and B. Stadlober Electronic Raman Scattering in Cuprate Superconductors and Related Compounds SPIE (Bellingham) Vol. 2696, 194 (1996)
28.	Dietrich Einzel and Rudi Hackl Electronic Raman Scattering in Copper Oxide Superconductors Invited Review, J. Raman Spectroscopy 27, 307 (1996).
27.	B. Stadlober, G. Krug, R. Nemetschek, M. Opel, R. Hackl, D. Einzel, C. Schuster, T.P. Devereaux, L. Forró, J.L. Cobb, J.T. Markert, and J.J. Neumeier Study of k-dependent Electronic Properties in Cuprate Superconductors Using Electronic Raman Scattering J. Phys. Chem. Solids 56, 1841 (1995).
26.	B. Stadlober, G. Krug, R. Nemetschek, R. Hackl, J.L. Cobb, and J.T. Markert Is Nd_2-xCe_xCuO₄ a high-temperature superconductor? Phys. Rev. Lett. 74, 4911 (1995)
25.	T.P. Devereaux, D. Einzel, R. Hackl, G. Krug, R. Nemetschek, B. Stadlober Electronic Raman scattering in high-T_c superconductors Invited talk at the 4^th International Conference on Materials and Mechanisms of Superconductivity and High-Temperature Superconductors in Grenoble (July 5 - 9, 1994) Physica C 235-240, 57 (1994)
24.	R. Hackl, B. Stadlober, R. Nemetschek, G. Krug, D. Einzel, T.P. Devereaux, P. Müller, J.J. Neumeier, K. Winze Investigation of the pairing symmetry in high-T_c superconductors by electronic Raman scattering Invited talk at the 14^th International Conference on Raman Spectroscopy in Hong Kong (August 22 - 26, 1994) Proceedings edited by N.-T. Yu and X.-Y. Li, p. 326 (J. Wiley & Sons, New York, 1994)
23.	T.P. Devereaux, D. Einzel, B. Stadlober, R. Hackl Reply to Comment on Electronic Raman scattering high-T_c superconductors: A probe of d_{x²- y²} pairing Phys. Rev. Lett. 72, 3291 (1994)
22.	T.P. Devereaux, D. Einzel, B. Stadlober, R. Hackl, D. Leach, J.J. Neumeier Electronic Raman scattering in high-T_c superconductors: A probe of d_{x²- y²} pairing Phys. Rev. Lett. 72, 396 (1994)
21.	B. Stadlober, R. Nemetschek, O.V. Misochko, R. Hackl, P. Müller, J.J. Neumeier, K. Winzer Electronic Raman scattering in differently doped high-T_c materials Physica B 194-196, 1539 (1994)
20.	D. Einzel, B. Stadlober, R. Nemetschek, T. Staufer, R. Hackl Investigation of the low energy Raman cross section in superconductors Physica B 194-196, 1487 (1994)
19.	R. Nemetschek, O.V. Misochko, B. Stadlober, R. Hackl Inelastic light scattering from electronic and phononic excitations in normal and superconducting Tl₂Ba₂CuO₆ single crystals Phys. Rev. B 47, 3450 (1993)
18.	R. Nemetschek, T. Staufer, O.V. Misochko, D. Einzel, R. Hackl, P. Müller, K. Andres Raman study of the order parameter in oxide superconductors Springer Series of Solid State Sciences 113, 291 (1993)
17.	T. Staufer, R. Nemetschek, R. Hackl, P. Müller, and H. Veith Investigation of the superconducting order parameter in Bi₂Sr₂CaCu₂O₈ single crystals Phys. Rev. Lett. 68, 1069 (1992)
16.	R. Hackl, R. Nemetschek, O.V. Misochko, B. Stadlober, and D. Einzel Is there an energy gap in the electronic spectrum of copper-oxide superconductors? Results of Raman-scattering experiments Proceedings of the Bilateral Seminar between Japan and Germany on Highly Correlated Electron Systems, September 2-5, 1992, Osaka, Japan
15.	H. Müller, H.P. Fritz, R. Nemetschek, R. Hackl, W. Biberacher, and C.-P. Heidmann Synthesis and properties of Bis-(phenylenedithio)-tetrathiafulvalene (BPhDT-TTF): A new p-donor for organic metals Z. Naturforschung 47b, 718 (1992)
14.	T. Staufer, R. Hackl, and P. Müller Some new aspects of the electronic response in Cu-O superconductors Solid State Commun. 79 , 409 (1991)
13.	R. Hackl A comparative Raman study of classical and oxide superconductors Springer Series in Solid-State Sciences 99, 312 (1990)
12.	T. Staufer, R. Hackl, and P. Müller On the Raman-active electronic continuum in oxide superconductors Proceedings of the Third German-Soviet Bilateral Seminar on High-Temperature Superconductivity October 8-12, 1990 (Karlsruhe, 1990)
11.	T. Staufer, R. Hackl, and P. Müller Raman study of the electronic continuum in oxide superconductors Solid State Commun. 75 , 975 (1990)
10.	R. Hackl, R. Kaiser, and W. Gläser Electronic and phonon-mediated gap modes in A15 compounds Physica C, 162-164, 431 (1989)
9.	R. Hackl, P. Müller, D. Einzel, and W. Gläser A Light-scattering study of the superconducting energy gap in YBa₂Cu₃O₇ single crystals Physica C 162-164, 1241 (1989)
8.	R. Hackl, W. Gläser, P. Müller, D. Einzel, and K. Andres Light-scattering study of the superconducting energy gap in YBa₂Cu₃O₇ single crystals Phys. Rev. B 38, 7133 (1988)
7.	P. Müller, K. Andres, F. Groß, H. Veith, and R. Hackl Preparation and analysis of YBa₂Cu₃O₇ single crystals Physica C 153-155, 421 (1988)
6.	R. Hackl and R. Kaiser Observation of the missing gap modes in superconducting V₃Si J. Phys. C 21, L453 (1988)
5.	R. Hackl Inelastische Lichtstreuung an A15-Verbindungen Dissertation, Technische Universität München (1987)
4.	R. Hackl, R. Kaiser, A. Müller, and W. Weber Raman studies of the high-T_c compounds Nb₃(Al-Ge) and V₃Si J. Phys. F 16, 1299 (1986)
3.	P. Müller, R. Hackl, R. Kaiser, N. Nücker, and A. Müller Inelastic neutron and Raman scattering on high-T_c Nb₃(Al, Ge) Physica 135B, 355 (1986)
2.	R. Hackl, R. Kaiser, and S. Schicktanz Gap mode, superconducting gap and phonon mode in V₃Si and Nb₃Sn J. Phys. C 16, 1729 (1983)
1.	R. Hackl, R. Kaiser, and S. Schicktanz Raman studies of V₃Si below T_c Proceedings of the Fourth International Conference on Superconductivty in d- and f-band Metals, edited by W. Buckel and W. Weber, p. 559 (Kernforschungszentrum Karlruhe, 1982)