Professur für Festkörperphysik:
Spektroskopie mit Synchrotronstrahlung/Neutronen
oder Tiefe Temperaturen

Veröffentlichungen

2012

E. A. Francis, S. Scharinger, K. Németh, K. Kamarás, und C. A. Kuntscher
Pressure-induced transition from the dynamic to static Jahn-Teller effect in (Ph₄P)₂IC₆₀
Phys. Rev. B 85, 195428 (2012)

J. Ebad-Allah, L. Baldassarre, M. Sing, R. Claessen, V. A. M. Brabers, und C. A. Kuntscher
Polaron physics and crossover transition in magnetite probed by pressure-dependent infrared spectroscopy
arXiv:1202.4431v1 [cond-mat.str-el]

2011

C. A. Kuntscher, A. Abouelsayed, Á. Botos, Á. Pekker, und K. Kamarás
Pressure studies on fullerene peapods
physica status solidi (b) , 248, 2732 (2011).

K. Thirunavukkuarasu, V. C. Long, J. L. Musfeldt, F. Borondics, G. Klupp, K. Kamaras, and C. A. Kuntscher
Rotational Dynamics in C70: Temperature- and Pressure-Dependent Infrared Studies
J. Phys. Chem. C, 2011, 115 (9), pp 3646-3653

2010

E. A. Francis, S. Scharinger, K. Németh, K. Kamarás, C. A. Kuntscher
Investigation of the Jahn - Teller effect in the monoanion under high pressure
Phys. Status Solidi B 247,3047 (2010)

C. A. Kuntscher, A. Abouelsayed, K. Thirunavukkuarasu, F. Hennrich
Pressure-induced phenomena in single-walled carbon nanotubes: Structural phase transitions and the role of pressure transmitting medium
Phys. Status Solidi B 247,2789 (2010)

J. Ebad-Allah, A. Schönleber, S. van Smaalen, M. Hanfland, M. Klemm, S. Horn, S. Glawion, M. Sing, R. Claessen und C. A. Kuntscher
Two pressure-induced structural phase transitions in TiOCl
Phys. Rev. B 82, 134117 (2010)

C.A. Kuntscher, M. Klemm, S. Horn, M. Sing und R. Claessen
Possible metallization of the Mott insulators TiOCl and TiOBr: Effects of doping and external pressure
Eur. Phys. J. Special Topics 180, 29 (2010)

A. Pashkin, M. Dressel, M. Hanfland und C. A. Kuntscher
Deconfinement transition and dimensional crossover in the Bechgaard-Fabre salts: pressure- and temperature-dependent optical investigations
Phys. Rev. B 81, 125109 (2010)

A. Abouelsayed, K. Thirunavukkuarasu, F. Hennrich und C. A. Kuntscher
Role of the Pressure Transmitting Medium for the Pressure Effects in Single-Walled Carbon Nanotubes
J. Phys. Chem. C 114(10), 4424 (2010)

J. Kunes, L. Baldassarre, B. Schächner, K. Rabia, C. A. Kuntscher, Dm. M. Korotin, V. I. Anisimov, J. A. McLeod, E. Z. Kurmaev und A. Moewes
Metal-insulator transition in NiS_2-xSe_x
Phys. Rev. B 81, 035122 (2010)

K. Thirunavukkuarasu, F. Hennrich, K. Kamarás und C. A. Kuntscher
Infrared spectroscopic studies on unoriented single-walled carbon nanotube films under hydrostatic pressure
Phys. Rev. B 81, 045424 (2010)

2009

A. Abouelsayed, K. Thirunavukkuarasu, K. Kamaras, F. Hennrich und C.A. Kuntscher
Pressure-induced phenomena in single-walled carbon nanotubes probed by infrared spectroscopy
High Pressure Research 29, 559 (2009)

C. A. Kuntscher, J. Ebad-Allah, A. Pashkin, S. Frank, M. Klemm, S. Horn, A. Schoenleber, S. van Smaalen, M. Hanfland, S. Glawion, M. Sing und R. Claessen
Filling of the Mott-Hubbard gap in the oxyhalides TiOCl and TiOBr induced by external pressure
High Pressure Research 29, 509 (2009)

K. Rabia, A. Pashkin, S. Frank, G. Obermeier, S. Horn, M. Hanfland und C. A. Kuntscher
High-pressure XRD study of β-Na_0.33V₂O₅
High Pressure Research 29, 504 (2009)

J. Ebad-Allah, L. Baldassarre, M. Sing, R. Claessen, V.A.M. Brabers und C.A. Kuntscher
Infrared studies of magnetite under high pressure
High Pressure Research 29, 500 (2009)

Aron Wosylus, Ulrich Schwarz, Lev Akselrud, Matt G. Tucker, Michael Hanfland, Kaneez Rabia, Christine Kuntscher, Jörg von Appen, Richard Dronskowski, Dieter Rau und Rainer Niewa
High-pressure Phase Transition and Properties of Cu₃N: An Experimental and Theoretical Study
ZAAC 635, 1959 (2009)

S. Bordacs, D. Varjas, I. Kezsmarki, G. Mihaly, L. Baldassarre, A. Abouelsayed, C.A. Kuntscher, K. Ohgushi und Y. Tokura
Magnetic-Order-Induced Crystal Symmetry Lowering in ACr₂O₄ Ferrimagnetic Spinels
Phys. Rev. Lett. 103, 077205 (2009)

A. Pashkin, M. Dressel, S. G. Ebbinghaus, M. Hanfland und C. A. Kuntscher
Pressure-induced structural phase transition in the Bechgaard-Fabre salts
Synth. Met. 159, 2097 (2009)

R. Haumont, P. Bouvier, A. Pashkin, K. Rabia, S. Frank, B.Dkhil, W. A. Crichton, C. A. Kuntscher und J. Kreisel
Effect of high pressure on multiferroic BiFeO₃
Phys. Rev. B 79, 184110 (2009)

2008

K. Thirunavukkuarasu, C. A. Kuntscher, B. J. Nagy, I. Jalsovszky, G. Klupp, K. Kamarás, É. Kováts und S. Pekker
Orientational Ordering and Intermolecular Interactions in the Rotor-Stator Compounds C₆₀·C₈H₈ and C₇₀·C₈H₈ Studied under Pressure
J. Phys. Chem. C 112, 17525 (2008)

K. Thirunavukkuarasu, C. A. Kuntscher, F. Borondics, G. Klupp und K. Kamarás
Infrared spectroscopy on the fullerene C₇₀ under pressure
phys. stat. sol. (b) 245, 2006(2008)

C. A. Kuntscher, K. Thirunavukkuarasu, K. Kamarás, F. Simon und D. A. Walters
Infrared microreflectance study of the pressure effect on the structural properties of magnetically aligned single-wall carbon nanotubes
phys. stat. sol. (b) 245, 2288 (2008)

C. A. Kuntscher, A. Pashkin, H. Hoffmann, S. Frank, M. Klemm, S. Horn, A. Schönleber, S. van Smaalen, M. Hanfland, S. Glawion, M. Sing und R. Claessen
Mott-Hubbard gap closure and structural phase transition in the oxyhalides TiOBr and TiOCl under pressure
Phys. Rev. B 78, 035106 (2008)

D. M. Sagar, D. Fausti, S. Yue, C. A. Kuntscher, S. van Smaalen und P. H. M. van Loosdrecht
A Raman study of the Charge-Density-Wave State in A_0.3MoO₃ (A = K,Rb)
New J. Phys. 10, 023043 (2008)
(cond-mat/0712.3880)

2007

C. A. Kuntscher, S. Frank, A. Pashkin, H. Hoffmann, A. Schönleber, S. van Smaalen, M. Hanfland, S. Glawion, M. Klemm, M. Sing, S. Horn und R. Claessen,
Pressure-induced metallization and structural phase transition of the Mott-Hubbard insulator TiOBr
Phys. Rev. B 76, 241101(R) (2007)
(cond-mat/0710.4126)

K. Thirunavukkuarasu , C. A. Kuntscher , Gy. Bényei, I. Jalsovszky, G. Klupp, K. Kamarás, É. Kováts und S. Pekker,
Infrared spectroscopy on the rotor-stator compounds C₆₀-C₈H₈ and C₇₀-C₈H₈ under pressure
phys. stat. sol. (b) 244, 3857 (2007)

C. A. Kuntscher, K. Thirunavukkuarasu , Á. Pekker , K. Kamarás, F. Hennrich , M. Kappes und Y. Iwasa,
Pressure-induced phenomena in single-walled carbon nanotubes
phys. stat. sol. (b), 244, 11, 3982-3985 (2007)

S. Glawion, M. Sing, M. Hoinkis, C. A. Kuntscher und R. Claessen,
Unusual Spin-Peierls physics in the layered quantum magnet TiOCl,
AIP Conference Proceedings Volume 918, 297 (2007)

Simone Frank, Christine A. Kuntscher, Ivan Gregora, Jan Petzelt, Touru Yamauchi und Yutaka Ueda
Pressure-induced changes in the optical properties of quasi-one-dimensional β-Na_0.33V₂O₅
Phys. Rev. B 76, 075128 (2007)

A. Pashkin, K. Thirunavukkuarasu, Y.-L. Mathis, W. Kang und C. A. Kuntscher
Metal-insulator transition in the low-dimensional organic conductor (TMTSF)₂FSO₃ probed by infrared microspectroscopy
Eur. Phys. J. B 56, 285-290 (2007)
(cond-mat/0704.0368)

2006

A. Pashkin, M. Dressel und C. A. Kuntscher
Pressure-induced deconfinement of the charge transport in the quasi-one-dimensional Mott insulator (TMTTF)₂AsF₆
Phys. Rev. B 74, 165118 (2006)

A. Pashkin, C. A. Kuntscher und M. Dressel
Pressure-induced changes in the optical response of the quasi-1D organic salt (TMTTF)₂AsF₆
J. Low Temp. Phys. 142, 563 (2006)

N. Drichko, M. Dressel, C. A. Kuntscher, A. Pashkin, A. Greco, J. Merino und J. Schlueter
Electronic properties of correlated metals in the vicinity of a charge order transition: optical spectroscopy of α-(BEDT-TTF)₂MHg(SCN)₄ (M = NH₄, Rb, Tl)
Phys. Rev. B 74, 235121 (2006).

C. A. Kuntscher, S. Frank, A. Pashkin, M. Hoinkis, M. Klemm, M. Sing, S. Horn und R. Claessen
Possible pressure-induced insulator-to-metal transition in low-dimensional TiOCl
Phys. Rev. B 74, 184402 (2006)

K. Thirunavukkuarasu, F. Lichtenberg und C. A. Kuntscher
Doping dependence of the optical properties of low-dimensional perovskite-related La_1-yCa_yTiO_{3.4 ±d}
J.Phys.:Condens.Matter 18, 9173 (2006)

S. Frank, C. A. Kuntscher, I. Loa, K. Syassen und F. Lichtenberg
Effect of pressure on the polarized infrared optical response of the quasi-one-dimensional conductor LaTiO_3.41
Phys. Rev. B 74, 054105 (2006)

C. A. Kuntscher, S. Frank, K. Kamarás, G. Klupp, É. Kováts, S. Pekker, Gy. Bényei, und I. Jalsovszky
Pressure-dependent infrared spectroscopy on the fullerene rotor-stator compound C₆₀-C₈H₈
phys. stat. sol. (b), 243, 13, 2981-2984 (2006)

K. Kamarás, K. Thirunavukkuarasu, C.A. Kuntscher, M. Dressel, F. Simon, H. Kuzmany, D.A. Walters und D.A. Moss
Far- and mid-infrared anisotropy of magnetically aligned single-wall carbon nanotubes studied with synchrotron radiation
Infrared Physics & Technology 49, 35 (2006).

C.A. Kuntscher, S. Frank, I. Loa, K. Syassen, F. Lichtenberg, T. Yamauchi und Y. Ueda
High-pressure infrared spectroscopy on quasi-one-dimensional metals
Infrared Phys. Technol. 49, 88 (2006).

P. Balaya, M. Ahrens, L. Kiehnle, J. Maier, B. Rahmati, S.B. Lee, W. Sigle, A. Pashkin, C. A. Kuntscher und M. Dressel
Synthesis and Characterization of Nanocrystalline SrTiO₃
J. Am. Ceram. Soc. 89, 2804 (2006).

V. I. Torgashev, Y. I. Yuzyuk, V. V. Lemanov und C. A. Kuntscher
Raman spectroscopic study of the concentration phase transition in Pb_1-xCa_xTiO₃ solid solutions
Physics of the Solid State 48, 765 - 773 (2006).

C. A. Kuntscher, S. Frank, I. Loa, K. Syassen, T, Yamauchi und Y. Ueda
Pressure-dependent infrared properties of the quasi-one-dimensional β-Na_0.33V₂O₈
Physica B 378-380, 896-897 (2006).

2005

C.A. Kuntscher, S.Frank, I. Loa, K. Syassen, T.Yamauchi und Y.Ueda
Infrared properties of the quasi-one-dimensional superconductor β-Na_0.33V₂O₅ under pressure
Phys. Rev. B 71, 220502(R) (2005)

S. Yue, C. A. Kuntscher, M. Dressel, S. van Smaalen, F. Ritter und W.Assmus
Doping Effects on the Charge-Density-Wave Dynamics in Blue Bronze
cond-mat/0501332 (submitted to Eur. Phys. J. B)

2004

C. A. Kuntscher, S. Schuppler, P. Haas, B. Gorshunov, M. Dressel, M. Grioni und F. Lichtenberg
Electronic and vibrational properties of low-dimensional perovskites Sr_1-yLa_yNbO_3.5-x
Phys. Rev. B 70, 245213 (2004)

A.-K. Klehe, T. Biggs, C. A. Kuntscher, A. Kini und J. Schlueter,
Comparative magnetotransport and Tc measurements on kappa-(BEDT-TTF)₂Cu(SCN)₂ under pressure
J. Phys.: Condens. Matter 16(34), 6109 (2004)

I. Loa, K. Syassen, X. Wang, F. Lichtenberg, M. Hanfland und C. A. Kuntscher,
Crystal structure of LaTiO_3.41 under pressure
Phys. Rev. B 69, 224105 (2004)

2003

C. A. Kuntscher, M. Dressel, F. Lichtenberg, J. Mannhart und D. van der Marel,
Signatures of polaronic excitations in quasi-1D LaTiO_3.41
Phys. Rev. B 67, 0350105 (2003)

2002

C. A. Kuntscher, S. Schuppler, P. Haas, B. Gorshunov, M. Dressel, F. Lichtenberg, A. Herrnberger, F. Mayr und J. Mannhart,
Extremely small energy gap in the quasi-one dimensional linear chain compound SrNbO_3.41
Phys. Rev. Lett. 89, 236403 (2002)

P. Daniels, R. Tamazyan, C. A. Kuntscher, M. Dressel, F. Lichtenberg, und S. van Smaalen,
The incommensurate modulation of the structure of Sr₂Nb₂O₇
Acta Cryst. B 58, 970 (2002)

2001

B. Gorshunov, C. A. Kuntscher, P. Haas, M. Dressel, F. P. Mena, A. B. Kuzmenko, D. van der Marel, T. Muranaka und K. Akimitsu
Optical measurements of the superconducting gap in MgB₂
Eur. Phys. J. B. 21, 159 (2001)

S. Gerhold, N. Nücker, C. A. Kuntscher, S. Schuppler, S. Stadler, Y. U. Idzerda, A. V. Prokofiev,F. Büllesfeld und W. Assmus
X-ray absorption spectroscopy of single-crystalline (VO)₂P₂O₇: Electronic structure and possible exchange paths
Phys. Rev. B 63, 073103 (2001).

2000

N. Nücker, M. Merz, C. A. Kuntscher, S. Gerhold, S. Schuppler, R. Neudert, M. S. Golden, J. Fink, D. Schild, S. Stadler, V. Chakarian, J. Freeland, Y. U. Idzerda, K. Conder, M. Uehara, T. Nagata, J. Goto, J. Akimitsu, N. Motoyama, H. Eisaki, S. Uchida, U. Ammerahl und A. Revcolevschi
Hole distribution for (Sr,Ca,Y,La)₁₄Cu₂₄O₄₁ ladder compounds studied by x-ray absorption spectroscopy
Phys. Rev. B 62, 14384 (2000)

H. Winter, S. Schuppler und C. A. Kuntscher
The electronic structure and O1s x-ray absorption cross section of the perovskite-related compound SrNbO_3.4
J.Phys.:Condens.Matter 12, 1735 (2000).

C. A. Kuntscher, S. Gerhold, N. Nücker, T. R. Cummins, D.-H. Lu, C. S. Gopinath, F. Lichtenberg, J. Mannhart und K.-P. Bohnen
Electronic structure of layered perovkite-related Sr_1-yLa_yNbO_3.5-x
Phys. Rev. B 61, 1876, 2000

1999

S. Gerhold, C. A. Kuntscher, M. Merz, N. Nücker, S. Schuppler, W. H. Tang und J. Gao
Site-specific x-ray absorption of twin-free (105) YBa₂Cu₃O_7-d films
Phys. Stat. Sol. (b) 215, 579 (1999)

M. Merz, S. Gerhold, N. Nücker, C. A. Kuntscher, B. Burbulla, P. Schweiss, S. Schuppler, V. Chakarian, J. Freeland, Y. U. Idzerda,M. Kläser, G. Müller-Vogt und Th. Wolf
Site-specific electronic structure of the RBa₂Cu₃O_7-y family
Phys. Rev. B 60, 9317 (1999)

1998

G. M. Bendele, C. A. Kuntscher und P. W. Stephens
Jahn-Teller distortion of fullerenes in A₄C₆₀?
in Molecular Nanostructures, edited by H. Kuzmany et al., World Scientific, Singapore (1998), p. 258

1997

C. A. Kuntscher, G. M. Bendele und P. W. Stephens
Alkali-metal stoichiometry and structure of K₄C₆₀ and Rb₄C₆₀
Phys. Rev. B. 55, R3366 (1997).