Abstract
The electron nuclear double resonance (ENDOR) technique is applied to study the influence of the incommensurate modulation on the proton hyperfine structure (hfs) tensors of the N(CH3)3 radical in betaine calcium chloride dihydrate (BCCD). The temperature dependence of the edge singularities due to the increasing of the incommensurate (IC) modulation amplitude could be observed in the1H ENDOR of the CH3 groups for the first time. The rotation pattern of the edge singularities observed in the1H spectra in the IC phase of BCCD can be explained by a libration around the C1-N axis with a tilt angle of about ±7°.
Similar content being viewed by others
References
Brill W., Schildkamp W., Spilker J.: Z. Kristallographie172, 281 (1986)
Klöpperpieper A., Rother H.J., Albers J., Müser H.E.: Japan. J. Appl. Phys.24, 829 (1986); Brill W., Ehses K.H.: Japan. J. Appl. Phys.24, 826 (1988)
Ezpelata J.M., Zúñiga F.J., Pérez-Mato J.M., Paciorek W.A., Breczewski T.: Acta Cryst. B48, 261 (1992)
Wilhelm H., Unruh H.-G.: Z. Kristallographie195, 75 (1981)
Unruh H.-G., Hero F., Dvorak V.: Solid State Commun.70, 403 (1989)
Rother H.J., Albers J., Klöpperpieper A.: Ferroelectrics54, 107 (1984)
Ribeiro J.L., Chaves M.R., Almaida A., Müser H.E., Albers J., Klöpperpieper A.: phys. stat. sol. (b)163, 503 (1991)
Ribeiro J.L., Chaves M.R., Almaida A., Müser H.E., Albers J., Klöpperpieper A.: J. Phys.: Condensed Matter1, 8011 (1989)
Le Maire M., Lopez Ayala A., Schaack G., Klöpperpieper A., Metz H.: Ferroelectrics155, 335 (1994)
Holzer K.-P., Petersson J., Schüssler D., Walisch R., Häcker U., Michel D.: Phys. Rev. Lett.71, 89 (1993)
Michel D., Müller B., Petersson J., Trampert A., Walisch R.: Phys. Rev. B43, 7507 (1991)
Häcker U., Holzer K.-P., Michel D., Petersson J.: Solid State Commun.83, 81 (1992)
Häcker U., Holzer K.-P., Michel D., Petersson J.: phys. stat. sol. (b)184, 205 (1994)
Häcker U., Michel D., Holzer K.-P., Petersson J.: Z. Naturforsch.50a, 368 (1994)
Holzer K.-P., Häcker U., Petersson J., Michel D., Kluthe S.: Solid State Commun.94, 275 (1995)
Metz H., Schaack G., Schmitt M., Windsch W.: phys. stat. sol. (a)126, K173 (1991)
Heidler R., Metz H., Windsch W.: Ferroelectrics125, 419 (1992)
Heidler R., Metz H., le Maire M., Schaack G., Windsch W.: Chem. Phys. Lett.209, 299 (1993)
Heidler R., Metz H., Windsch W.: Chem. Phys. Lett.229, 143 (1994)
Yeomans J.M.: Statistical Mechanics of Phase Transitions. Oxford: Clarendon Press 1992.
Blinc R., Preslovsek P., Rubar V., Seliger J., Zumar S. in: Incommomensurate Phases in Dielectrics (Blinc R., Levanyuk A.P., eds.), vol. 1, chapt. 4. Amsterdam: Elsevier 1986.
Blinc R., Seliger J., Zumar S.: J. Phys. C18, 2313 (1985)
Topic B., von Kienlin A., Gölzhäuser A., Heaberlen U., Blinc R.: Phys. Rev. B38, 8652 (1988)
Metz H., Böttcher R.: Appl. Magn. Reson.9, 319 (1995)
Zúñiga F.J., Ezpelata J.M., Pérez-Mato J.M., Paciorek W., Madriga G.: Phase Transition31, 29 (1991)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Metz, H., Böttcher, R. 1H ENDOR investigations on gamma-irradiated betaine calcium chloride dihydrate in the incommensurate phase. Appl. Magn. Reson. 12, 127–134 (1997). https://doi.org/10.1007/BF03161998
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF03161998