Raman Scattering as a Probe of the Magnetic State of BEDT-TTF Based Mott Insulators
Quasi-two-dimensional Mott insulators based on BEDT-TTF molecules have recently demonstrated a variety of exotic states, which originate from electron–electron correlations and geometrical frustration of the lattice. Among those states are a triangular S = 1/2 spin liquid and quantum dipol...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-05-01
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| Series: | Crystals |
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| Online Access: | http://www.mdpi.com/2073-4352/8/6/233 |
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| author | Nora Hassan Streit Cunningham Elena I. Zhilyaeva Svetlana A. Torunova Rimma N. Lyubovskaya John A. Schlueter Natalia Drichko |
| author_facet | Nora Hassan Streit Cunningham Elena I. Zhilyaeva Svetlana A. Torunova Rimma N. Lyubovskaya John A. Schlueter Natalia Drichko |
| author_sort | Nora Hassan |
| collection | DOAJ |
| description | Quasi-two-dimensional Mott insulators based on BEDT-TTF molecules have recently demonstrated a variety of exotic states, which originate from electron–electron correlations and geometrical frustration of the lattice. Among those states are a triangular S = 1/2 spin liquid and quantum dipole liquid. In this article, we show the power of Raman scattering technique to characterize magnetic and electronic excitations of these states. Our results demonstrate a distinction between a spectrum of magnetic excitations in a simple Mott insulator with antiferromagnetic interactions, and a spectrum of an insulator with an additional on-site charge degree of freedom. |
| first_indexed | 2024-04-11T11:12:30Z |
| format | Article |
| id | doaj.art-078bd590879d488b89c3fb0b875af471 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T11:12:30Z |
| publishDate | 2018-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-078bd590879d488b89c3fb0b875af4712022-12-22T04:27:24ZengMDPI AGCrystals2073-43522018-05-018623310.3390/cryst8060233cryst8060233Raman Scattering as a Probe of the Magnetic State of BEDT-TTF Based Mott InsulatorsNora Hassan0Streit Cunningham1Elena I. Zhilyaeva2Svetlana A. Torunova3Rimma N. Lyubovskaya4John A. Schlueter5Natalia Drichko6The Institute for Quantum Matter and the Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD 21218, USAThe Institute for Quantum Matter and the Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD 21218, USAInstitute of Problems of Chemical Physics, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics, 142432 Chernogolovka, RussiaDivision of Materials Research, National Science Foundation, Arlington, VA 22230, USAThe Institute for Quantum Matter and the Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD 21218, USAQuasi-two-dimensional Mott insulators based on BEDT-TTF molecules have recently demonstrated a variety of exotic states, which originate from electron–electron correlations and geometrical frustration of the lattice. Among those states are a triangular S = 1/2 spin liquid and quantum dipole liquid. In this article, we show the power of Raman scattering technique to characterize magnetic and electronic excitations of these states. Our results demonstrate a distinction between a spectrum of magnetic excitations in a simple Mott insulator with antiferromagnetic interactions, and a spectrum of an insulator with an additional on-site charge degree of freedom.http://www.mdpi.com/2073-4352/8/6/233spin liquidRaman scatteringBEDT-TTF |
| spellingShingle | Nora Hassan Streit Cunningham Elena I. Zhilyaeva Svetlana A. Torunova Rimma N. Lyubovskaya John A. Schlueter Natalia Drichko Raman Scattering as a Probe of the Magnetic State of BEDT-TTF Based Mott Insulators Crystals spin liquid Raman scattering BEDT-TTF |
| title | Raman Scattering as a Probe of the Magnetic State of BEDT-TTF Based Mott Insulators |
| title_full | Raman Scattering as a Probe of the Magnetic State of BEDT-TTF Based Mott Insulators |
| title_fullStr | Raman Scattering as a Probe of the Magnetic State of BEDT-TTF Based Mott Insulators |
| title_full_unstemmed | Raman Scattering as a Probe of the Magnetic State of BEDT-TTF Based Mott Insulators |
| title_short | Raman Scattering as a Probe of the Magnetic State of BEDT-TTF Based Mott Insulators |
| title_sort | raman scattering as a probe of the magnetic state of bedt ttf based mott insulators |
| topic | spin liquid Raman scattering BEDT-TTF |
| url | http://www.mdpi.com/2073-4352/8/6/233 |
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