Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Haghighirad, Amir Abbas"'
Autor:
Ye, Mai, Lacmann, Tom, Frachet, Mehdi, Vinograd, Igor, Garbarino, Gaston, Maraytta, Nour, Merz, Michael, Heid, Rolf, Haghighirad, Amir-Abbas, Tacon, Matthieu Le
Strain tuning is a powerful experimental method in probing correlated electron systems. Here we study the strain response of the lattice dynamics and electronic structure in semiconductor Ta$_2$NiS$_5$ by polarization-resolved Raman spectroscopy. We
Externí odkaz:
http://arxiv.org/abs/2405.01455
Autor:
Crispino, Matteo, Arribi, Pablo Villar, Shukla, Anmol, Hardy, Frédéric, Haghighirad, Amir-Abbas, Wolf, Thomas, Heid, Rolf, Meingast, Christoph, Gorni, Tommaso, Avella, Adolfo, Medici, Luca de'
We define a general strategy for finding new heavy-fermionic materials without rare-earth elements: doping a Hund metal with pronounced orbital-selective correlations towards half-filling. We argue that in general band structures a possible orbital-s
Externí odkaz:
http://arxiv.org/abs/2312.06511
Autor:
Frachet, Mehdi, Wang, Liran, Xia, Wei, Guo, Yanfeng, He, Mingquan, Maraytta, Nour, Heid, Rolf, Haghighirad, Amir-Abbas, Merz, Michael, Meingast, Christoph, Hardy, Frederic
The kagome materials AV4$_3$Sb$_5$ (A = K, Rb, Cs) host an intriguing interplay between unconventional superconductivity and charge-density-waves. Here, we investigate CsV$_3$Sb$_5$ by combining high-resolution thermal-expansion, heat-capacity and el
Externí odkaz:
http://arxiv.org/abs/2310.06102
Autor:
Bansal, Namrata, Li, Qili, Nufer, Paul, Zhang, Lichuan, Haghighirad, Amir-Abbas, Mokrousov, Yuriy, Wulfhekel, Wulf
We study the dynamic coupling of magnons and phonons in single crystals of Fe3GeTe2 (FGT) using inelastic scanning tunneling spectroscopy (ISTS) with an ultra-low temperature scanning tunneling microscope. Inelastic scattering of hot carriers off pho
Externí odkaz:
http://arxiv.org/abs/2308.10774
Autor:
Vinograd, Igor, Souliou, Sofia Michaela, Haghighirad, Amir-Abbas, Lacmann, Tom, Caplan, Yosef, Frachet, Mehdi, Merz, Michael, Garbarino, Gaston, Liu, Yiran, Nakata, Suguru, Ishida, Kousuke, Noad, Hilary M. L., Minola, Matteo, Keimer, Bernhard, Orgad, Dror, Hicks, Clifford W., Tacon, Matthieu Le
Publikováno v:
Nat. Commun. 15, 3277 (2024)
Uniaxial pressure provides an efficient approach to control the competition between charge density waves (CDWs) and superconductivity in underdoped YBa$_{2}$Cu$_{3}$O$_{\rm{y}}$. It can enhance the correlation volume of ubiquitous short-range 2D CDW
Externí odkaz:
http://arxiv.org/abs/2308.08395
Autor:
Lacmann, Tom, Haghighirad, Amir-Abbas, Souliou, Sofia-Michaela, Merz, Michael, Garbarino, Gaston, Glazyrin, Konstantin, Heid, Rolf, Tacon, Matthieu Le
Publikováno v:
Phys. Rev. B 108, 224115, 2023
Structural phase transitions accompanied by incommensurate and commensurate charge density wave (CDW) modulations of unconventional nature have been reported in BaNi$_2$As$_2$, a nonmagnetic cousin of the parent compound of Fe-based superconductors,
Externí odkaz:
http://arxiv.org/abs/2307.04660
Autor:
Katsumi, Kota, Alekhin, Alexandr, Souliou, Sofia-Michaela, Merz, Michael, Haghighirad, Amir-Abbas, Tacon, Matthieu Le, Houver, Sarah, Cazayous, Maximilien, Sacuto, Alain, Gallais, Yann
Publikováno v:
Physical Review Letters 130, 106904 (2023)
Ta$_2$NiSe$_5$ is an excitonic insulator candidate showing the semiconductor/semimetal-to-insulator (SI) transition below $T_{\text{c}}$ = 326 K. However, since a structural transition accompanies the SI transition, deciphering the role of electronic
Externí odkaz:
http://arxiv.org/abs/2211.08537
Autor:
Yao, Yi, Willa, Roland, Lacmann, Tom, Souliou, Sofia-Michaela, Frachet, Mehdi, Willa, Kristin, Merz, Michael, Weber, Frank, Meingast, Christoph, Heid, Rolf, Haghighirad, Amir-Abbas, Schmalian, Jörg, Tacon, Matthieu Le
Understanding the organizing principles of interacting electrons and the emergence of novel electronic phases is a central endeavor of condensed matter physics. Electronic nematicity, in which the discrete rotational symmetry in the electron fluid is
Externí odkaz:
http://arxiv.org/abs/2207.03161
Autor:
Meingast, Christoph, Shukla, Anmol, Wang, Liran, Heid, Rolf, Hardy, Frédéric, Frachet, Mehdi, Willa, Kristin, Lacmann, Tom, Tacon, Matthieu Le, Merz, Michael, Haghighirad, Amir-Abbas, Wolf, Thomas
A detailed investigation of BaNi2(As,P)2 single crystals using high-resolution thermal-expansion, heat-capacity,Young-modulus and resistivity measurements is presented. The experimental data are complemented by density-functional calculations. The ph
Externí odkaz:
http://arxiv.org/abs/2207.02294
Autor:
Yang, Hung-Hsiang, Bansal, Namrata, Rüßmann, Philipp, Hoffmann, Markus, Zhang, Lichuan, Go, Dongwook, Li, Qili, Haghighirad, Amir-Abbas, Sen, Kaushik, Blügel, Stefan, Tacon, Matthieu Le, Mokrousov, Yuriy, Wulfhekel, Wulf
Publikováno v:
2D Materials 9, 025022 (2022)
Among two-dimensional materials, Fe$_3$GeTe$_2$ has come to occupy a very important place owing to its ferromagnetic nature with one of the highest Curie temperatures among known van der Waals materials and the potential for hosting skyrmions. In thi
Externí odkaz:
http://arxiv.org/abs/2203.13562