The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Qingming Zhang - One of the best experts on this subject based on the ideXlab platform.
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experimental identification of electric dipoles induced by magnetic Monopoles in tb_ 2 ti_ 2 o_ 7
Physical Review Letters, 2020Co-Authors: Yanfen Chang, Anmin Zhang, Yimeng Wang, Xiaoqun Wang, Qingming Zhang, Gang ChenAbstract:: The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic "Monopoles" carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic Monopoles in spin frustrated Tb_{2}Ti_{2}O_{7}. The magnetic field applied to pyrochlore Tb_{2}Ti_{2}O_{7} along the [111] direction, brings out a "3-in-1-out" magnetic monopole configuration, and then induces a subtle structural phase transition at H_{c}∼2.3 T. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of Tb^{3+} ions. The observations consistently point to the displacement of the oxygen O^{''} anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in Tb_{2}Ti_{2}O_{7} and sheds light into the coupling between electricity and magnetism of magnetic Monopoles in spin frustrated systems.
Gang Chen - One of the best experts on this subject based on the ideXlab platform.
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experimental identification of electric dipoles induced by magnetic Monopoles in tb_ 2 ti_ 2 o_ 7
Physical Review Letters, 2020Co-Authors: Yanfen Chang, Anmin Zhang, Yimeng Wang, Xiaoqun Wang, Qingming Zhang, Gang ChenAbstract:: The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic "Monopoles" carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic Monopoles in spin frustrated Tb_{2}Ti_{2}O_{7}. The magnetic field applied to pyrochlore Tb_{2}Ti_{2}O_{7} along the [111] direction, brings out a "3-in-1-out" magnetic monopole configuration, and then induces a subtle structural phase transition at H_{c}∼2.3 T. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of Tb^{3+} ions. The observations consistently point to the displacement of the oxygen O^{''} anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in Tb_{2}Ti_{2}O_{7} and sheds light into the coupling between electricity and magnetism of magnetic Monopoles in spin frustrated systems.
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dirac s magnetic Monopoles in pyrochlore ice u 1 spin liquids spectrum and classification
Physical Review B, 2017Co-Authors: Gang ChenAbstract:We study the $U(1)$ quantum spin liquid on the pyrochlore spin ice systems. For the non-Kramers doublets such as ${\mathrm{Pr}}^{3+}$ and ${\mathrm{Tb}}^{3+}$, we point out that the inelastic neutron scattering result not only detects the low-energy gauge photon, but also contains the continuum of the ``magnetic monopole'' excitations. Unlike spinons, these ``magnetic Monopoles'' are purely of quantum origin and have no classical analog. We further point out that the ``magnetic monopole'' experiences a background dual ``$\ensuremath{\pi}$'' flux due to the spin-1/2 nature of the local moment when the ``monopole'' hops on the dual diamond lattice. We then predict that the ``monopole'' continuum has an enhanced spectral periodicity with a folded Brillouin zone. This prediction can be examined among the existing data on non-Kramers doublet spin liquid candidate materials like ${\mathrm{Pr}}_{2}{\mathrm{TM}}_{2}{\mathrm{O}}_{7}$ and ${\mathrm{Tb}}_{2}{\mathrm{TM}}_{2}{\mathrm{O}}_{7}$ (with TM = transition metal). The application to the Kramers doublet systems and numerical simulation is further discussed. Finally, we present a general classification of distinct symmetry enriched $U(1)$ quantum spin liquids based on the translation symmetry fractionalization patterns of ``Monopoles'' and ``spinons.''
Yimeng Wang - One of the best experts on this subject based on the ideXlab platform.
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experimental identification of electric dipoles induced by magnetic Monopoles in tb_ 2 ti_ 2 o_ 7
Physical Review Letters, 2020Co-Authors: Yanfen Chang, Anmin Zhang, Yimeng Wang, Xiaoqun Wang, Qingming Zhang, Gang ChenAbstract:: The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic "Monopoles" carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic Monopoles in spin frustrated Tb_{2}Ti_{2}O_{7}. The magnetic field applied to pyrochlore Tb_{2}Ti_{2}O_{7} along the [111] direction, brings out a "3-in-1-out" magnetic monopole configuration, and then induces a subtle structural phase transition at H_{c}∼2.3 T. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of Tb^{3+} ions. The observations consistently point to the displacement of the oxygen O^{''} anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in Tb_{2}Ti_{2}O_{7} and sheds light into the coupling between electricity and magnetism of magnetic Monopoles in spin frustrated systems.
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experimental identification of electric dipoles induced by magnetic Monopoles in tb_ 2 ti_ 2 o_ 7
Physical Review Letters, 2020Co-Authors: Yanfen Chang, Anmin Zhang, Yimeng Wang, F Jin, Changle Liu, Weiwei Liu, Xiaoqun WangAbstract:The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic ``Monopoles'' carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic Monopoles in spin frustrated ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$. The magnetic field applied to pyrochlore ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ along the [111] direction, brings out a ``3-in-1-out'' magnetic monopole configuration, and then induces a subtle structural phase transition at ${H}_{c}\ensuremath{\sim}2.3\text{ }\text{ }\mathrm{T}$. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of ${\mathrm{Tb}}^{3+}$ ions. The observations consistently point to the displacement of the oxygen ${\mathrm{O}}^{\ensuremath{'}\ensuremath{'}}$ anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ and sheds light into the coupling between electricity and magnetism of magnetic Monopoles in spin frustrated systems.
Xiaoqun Wang - One of the best experts on this subject based on the ideXlab platform.
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experimental identification of electric dipoles induced by magnetic Monopoles in tb_ 2 ti_ 2 o_ 7
Physical Review Letters, 2020Co-Authors: Yanfen Chang, Anmin Zhang, Yimeng Wang, Xiaoqun Wang, Qingming Zhang, Gang ChenAbstract:: The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic "Monopoles" carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic Monopoles in spin frustrated Tb_{2}Ti_{2}O_{7}. The magnetic field applied to pyrochlore Tb_{2}Ti_{2}O_{7} along the [111] direction, brings out a "3-in-1-out" magnetic monopole configuration, and then induces a subtle structural phase transition at H_{c}∼2.3 T. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of Tb^{3+} ions. The observations consistently point to the displacement of the oxygen O^{''} anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in Tb_{2}Ti_{2}O_{7} and sheds light into the coupling between electricity and magnetism of magnetic Monopoles in spin frustrated systems.
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experimental identification of electric dipoles induced by magnetic Monopoles in tb_ 2 ti_ 2 o_ 7
Physical Review Letters, 2020Co-Authors: Yanfen Chang, Anmin Zhang, Yimeng Wang, F Jin, Changle Liu, Weiwei Liu, Xiaoqun WangAbstract:The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic ``Monopoles'' carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic Monopoles in spin frustrated ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$. The magnetic field applied to pyrochlore ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ along the [111] direction, brings out a ``3-in-1-out'' magnetic monopole configuration, and then induces a subtle structural phase transition at ${H}_{c}\ensuremath{\sim}2.3\text{ }\text{ }\mathrm{T}$. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of ${\mathrm{Tb}}^{3+}$ ions. The observations consistently point to the displacement of the oxygen ${\mathrm{O}}^{\ensuremath{'}\ensuremath{'}}$ anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ and sheds light into the coupling between electricity and magnetism of magnetic Monopoles in spin frustrated systems.
Yanfen Chang - One of the best experts on this subject based on the ideXlab platform.
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experimental identification of electric dipoles induced by magnetic Monopoles in tb_ 2 ti_ 2 o_ 7
Physical Review Letters, 2020Co-Authors: Yanfen Chang, Anmin Zhang, Yimeng Wang, Xiaoqun Wang, Qingming Zhang, Gang ChenAbstract:: The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic "Monopoles" carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic Monopoles in spin frustrated Tb_{2}Ti_{2}O_{7}. The magnetic field applied to pyrochlore Tb_{2}Ti_{2}O_{7} along the [111] direction, brings out a "3-in-1-out" magnetic monopole configuration, and then induces a subtle structural phase transition at H_{c}∼2.3 T. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of Tb^{3+} ions. The observations consistently point to the displacement of the oxygen O^{''} anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in Tb_{2}Ti_{2}O_{7} and sheds light into the coupling between electricity and magnetism of magnetic Monopoles in spin frustrated systems.
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experimental identification of electric dipoles induced by magnetic Monopoles in tb_ 2 ti_ 2 o_ 7
Physical Review Letters, 2020Co-Authors: Yanfen Chang, Anmin Zhang, Yimeng Wang, F Jin, Changle Liu, Weiwei Liu, Xiaoqun WangAbstract:The fundamental principles of electrodynamics allow an electron carrying both electric monopole (charge) and magnetic dipole (spin) but prohibit its magnetic counterpart. Recently, it was predicted that the magnetic ``Monopoles'' carrying emergent magnetic charges in spin ice systems can induce electric dipoles. The inspiring prediction offers a novel way to study magnetic monopole excitations and magnetoelectric coupling. However, no clear example has been identified up to now. Here, we report the experimental evidence for electric dipoles induced by magnetic Monopoles in spin frustrated ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$. The magnetic field applied to pyrochlore ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ along the [111] direction, brings out a ``3-in-1-out'' magnetic monopole configuration, and then induces a subtle structural phase transition at ${H}_{c}\ensuremath{\sim}2.3\text{ }\text{ }\mathrm{T}$. The transition is made evident by the nonlinear phonon splitting under magnetic fields and the anomalous crystal-field excitations of ${\mathrm{Tb}}^{3+}$ ions. The observations consistently point to the displacement of the oxygen ${\mathrm{O}}^{\ensuremath{'}\ensuremath{'}}$ anions along the [111] axis which gives rise to the formation of electric dipoles. The finding demonstrates that the scenario of magnetic monopole having both magnetic charge and electric dipole is realized in ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ and sheds light into the coupling between electricity and magnetism of magnetic Monopoles in spin frustrated systems.