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arXiv · 1512.06495

Electronic states and molecular dynamics of single-component molecular conductors [M(tmdt)$_2$] (M=Ni, Pt) studied by $^{13}$C and $^1$H NMR

Rina Takagi·Kazuya Miyagawa·Masahide Yoshimura·Hiro Gangi·Kazushi Kanoda·Biao Zhou·Yuki Idobata·Akiko Kobayashi
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Abstract

The molecular conductors [M(tmdt)$_2$] (M=Ni, Pt) consisting of single molecular species are investigated with $^{13}$C NMR and $^1$H NMR. The temperature dependences of $^{13}$C NMR shift and relaxation rate provide microscopic evidences for the metallic nature with appreciable electron correlations. Both compounds exhibit an anomalous frequency-dependent enhancement in $^1$H nuclear spin-lattice relaxation rate in a wide temperature range. These observations signify the presence of extraordinary molecular motions with low energy excitations.

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Rina Takagi, Kazuya Miyagawa, Masahide Yoshimura, Hiro Gangi, Kazushi Kanoda, Biao Zhou, Yuki Idobata, Akiko Kobayashi. 2015-12-21. Electronic states and molecular dynamics of single-component molecular conductors [M(tmdt)$_2$] (M=Ni, Pt) studied by $^{13}$C and $^1$H NMR. https://doi.org/10.1103/physrevb.93.024403

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