Zobrazeno 1 - 10
of 316
pro vyhledávání: '"Boulanger, Marie"'
Autor:
Boulanger, Marie-Eve, Chen, Lu, Oliviero, Vincent, Vignolles, David, Grissonnanche, Gaël, Xu, Kejun, Shen, Zhi-Xun, Proust, Cyril, Baglo, Jordan, Taillefer, Louis
It has recently become clear that phonons generate a sizable thermal Hall effect in cuprates, whether they are undoped, electron-doped or hole-doped (inside the pseudogap phase). At higher doping, where cuprates are reasonably good metals, mobile ele
Externí odkaz:
http://arxiv.org/abs/2310.15892
Autor:
Chen, Lu, Roux, Léna Le, Grissonnanche, Gaël, Boulanger, Marie-Eve, Thériault, Steven, Liang, Ruixing, Bonn, D. A., Hardy, W. N., Pyon, S., Takayama, T., Takagi, H., Xu, Kejun, Shen, Zhi-Xun, Taillefer, Louis
Publikováno v:
Phys. Rev. X 14, 041011 (2024)
A surprising "planar" thermal Hall effect, whereby the field is parallel to the current, has recently been observed in a few magnetic insulators, and this has been attributed to exotic excitations such as Majorana fermions or chiral magnons. Here we
Externí odkaz:
http://arxiv.org/abs/2310.07696
Autor:
Vallipuram, Ashvini, Chen, Lu, Campillo, Emma, Mezidi, Manel, Grissonnanche, Gaël, Boulanger, Marie-Eve, Lefrançois, Étienne, Zic, Mark P., Li, Yuntian, Fisher, Ian R., Baglo, Jordan, Taillefer, Louis
Publikováno v:
Phys. Rev. B 110 (2024)
In a growing number of materials, phonons have been found to generate a thermal Hall effect, but the underlying mechanism remains unclear. Inspired by previous studies that revealed the importance of Tb$^{3+}$ ions in generating the thermal Hall effe
Externí odkaz:
http://arxiv.org/abs/2310.10643
Autor:
Ataei, Amirreza, Grissonnanche, Gael, Boulanger, Marie-Eve, Chen, Lu, Lefrancois, Etienne, Brouet, Veronique, Taillefer, Louis
Publikováno v:
Nature Physics 20, 585-588 (2024)
A thermal Hall effect is observed in an increasing number of insulators often attributed to phonons, but the underlying mechanism is in most cases unknown. A coupling of phonons to spins has been invoked and scattering of phonons by impurities or def
Externí odkaz:
http://arxiv.org/abs/2302.03796
Autor:
Boulanger, Marie-Eve, Grissonnanche, Gaël, Lefrançois, Étienne, Gourgout, Adrien, Xu, Ke-Jun, Shen, Zhi-Xun, Greene, Richard L., Taillefer, Louis
Publikováno v:
Phys. Rev. B 105, 115101 (2022)
Measurements of the thermal Hall conductivity in hole-doped cuprates have shown that phonons acquire chirality in a magnetic field, both in the pseudogap phase and in the Mott insulator state. The microscopic mechanism at play is still unclear. A num
Externí odkaz:
http://arxiv.org/abs/2112.09187
Publikováno v:
PNAS 119 (34) e2208016119 (2022)
Phonons are known to generate a thermal Hall effect in certain insulators, including oxides with rare-earth impurities, quantum paraelectrics, multiferroic materials and cuprate Mott insulators. In each case, a special feature of the material is pres
Externí odkaz:
http://arxiv.org/abs/2110.13277
Autor:
Boulanger, Marie-Eve, Grissonnanche, Gaël, Badoux, Sven, Allaire, Andréanne, Lefrançois, Étienne, Legros, Anaëlle, Gourgout, Adrien, Dion, Maxime, Wang, C. H., Chen, X. H., Liang, R., Hardy, W. N., Bonn, D. A, Taillefer, Louis
Publikováno v:
Nature Communications 11, 5325 (2020)
The heat carriers responsible for the unexpectedly large thermal Hall conductivity of the cuprate Mott insulator La$_2$CuO$_4$ were recently shown to be phonons. However, the mechanism by which phonons in cuprates acquire chirality in a magnetic fiel
Externí odkaz:
http://arxiv.org/abs/2007.05088
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