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- Axel G Rossberg, Kilian Bartholomé, Jens Timmer
- Physical review. E, Statistical, nonlinear, and…
- 2004

A method for measuring the phase of oscillations from noisy time series is proposed. To obtain the phase, the signal is filtered in such a way that the filter output has minimal relative variation in… (More)

- P Rajesh Kumar, Uma S. Hiremath, Channabasaveshwar V Yelamaggad, Axel G Rossberg, Kanakapura S Krishnamurthy
- The journal of physical chemistry. B
- 2008

We report on the electric-field-generated effects in the nematic phase of a twin mesogen formed of bent-core and calamitic units, aligned homeotropically in the initial ground state and examined… (More)

- Axel G Rossberg, Kilian Bartholomé, Henning U. Voss, Jens Timmer
- Physical review letters
- 2004

We present methods for detecting phase synchronization of two unidirectionally coupled, self-sustained noisy oscillators from a signal of the driven oscillator alone. One method detects soft phase… (More)

- P Rajesh Kumar, Uma S. Hiremath, Channabasaveshwar V Yelamaggad, Axel G Rossberg, Kanakapura S Krishnamurthy
- The journal of physical chemistry. B
- 2008

We characterize the structural transitions in an initially homeotropic bent-rod nematic liquid crystal excited by ac fields of frequency f well above the dielectric inversion point fi. From the… (More)

- Nándor Éber, Szilárd Németh, Axel G Rossberg, Lorenz G A Kramer, Ágnes Buka
- Physical review. E, Statistical, nonlinear, and…
- 2002

We present a detailed analysis of the characteristics of electroconvection patterns in a homeotropic nematic liquid crystal under the influence of a variable magnetic field. An unambiguous… (More)

- Soichi Tatsumi, Masaki Sano, Axel G Rossberg
- Physical review. E, Statistical, nonlinear, and…
- 2006

We report observations of stable, localized, linelike structures in the spatially periodic pattern formed by nematic electroconvection, along which the phase of the pattern jumps by pi. With… (More)

We characterize the director structures in electroconvection patterns of nematic liquid crystals by means of polarising microscopy. This study was stimulated by a theory put forward by Rossberg et… (More)

For over 25 years it is known that the roll structure of electroconvection (EC) in the dielectric regime in planarly aligned nematic liquid crystals has, after a transition to defect chaos, the… (More)

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