Directional Criticality and Higher-Order Flatness: Designing Van Hove Singularities in Three Dimensions

Fuente: arXiv

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Li, Hua-Yu, Tan, Hengxin, Zhu, Hao-Yu, Yuan, Hong-Kuan, Kuang, Min-Quan
Format:	Preprint
Veröffentlicht:	2026
Schlagworte:	Strongly Correlated Electrons Materials Science
Online-Zugang:	Acceder al recurso
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Ähnliche Einträge

Pomeranchuk Instability Induced by an Emergent Higher-Order van Hove Singularity on the Distorted Kagome Surface of Co$_3$Sn$_2$S$_2$
von: Nag, Pranab Kumar, et al.
Veröffentlicht: (2024)

Designing Topological High-Order Van Hove Singularities: Twisted Bilayer Kagomé
von: Perkins, David T. S., et al.
Veröffentlicht: (2025)

Electronic orders on the kagome lattice at the lower Van Hove filling
von: Liu, Yi-Qun, et al.
Veröffentlicht: (2024)

Non-Fermi-Liquid/Marginal-Fermi-Liquid Signatures Induced by Van Hove Singularity
von: Xing, Yi-Hui, et al.
Veröffentlicht: (2024)

Three-Dimensional Fermi Surface, Van Hove Singularity and Enhancement of Superconductivity in Infinite-Layer Nickelates
von: Xia, Chengliang, et al.
Veröffentlicht: (2025)

Van-Hove singularities and competing instabilities in an altermagnetic metal
von: Rao, Peng, et al.
Veröffentlicht: (2025)

Inversion and Tunability of Van Hove Singularities in $A$V$_{3}$Sb$_{5}$ ($A$ = K, Rb, and Cs) kagome metals
von: Sim, Sangjun, et al.
Veröffentlicht: (2024)

van Hove Singularity-Driven Emergence of Multiple Flat Bands in Kagome Superconductors
von: Luo, Hailan, et al.
Veröffentlicht: (2024)

The discovery of three-dimensional Van Hove singularity
von: Wu, Wenbin, et al.
Veröffentlicht: (2023)

Influence of Fermi Surface Geometry and Van Hove Singularities on the Optical Response of Sr$_2$RuO$_4$
von: Yazdani-Hamid, Meghdad, et al.
Veröffentlicht: (2025)

Van Hove Singularity-Driven Topological Magnetism in Twisted MoTe2
von: Park, Heonjoon, et al.
Veröffentlicht: (2026)

Van Hove singularity in the magnon spectrum of the antiferromagnetic quantum honeycomb lattice
von: Sala, G., et al.
Veröffentlicht: (2020)

Van Hove singularity-induced multiple magnetic transitions in multi-orbital systems
von: Lu, Chen, et al.
Veröffentlicht: (2026)

Optical absorption signatures of superconductors driven by Van Hove singularities
von: Yang, Hyeok-Jun, et al.
Veröffentlicht: (2024)

Realization of Practical Eightfold Fermions and Fourfold van Hove Singularity in TaCo$_2$Te$_2$
von: Rong, Hongtao, et al.
Veröffentlicht: (2022)

Van-Hove annihilation and nematic instability on a Kagome lattice
von: Jiang, Yu-Xiao, et al.
Veröffentlicht: (2024)

Magnetic fluctuations near the Van Hove singularity in the kagome-lattice Hubbard model at finite doping
von: Wang, Jingyao, et al.
Veröffentlicht: (2026)

Stacking-Dependent Van Hove Singularity Shifts in Three-Dimensional Charge Density Waves of Kagome Metals AV$_3$Sb$_5$ (A = K, Rb, Cs)
von: Barman, Chanchal K., et al.
Veröffentlicht: (2024)

Charge and pair density waves in a spin and valley-polarized system at a Van-Hove singularity
von: Gil, Avigail, et al.
Veröffentlicht: (2025)

Magnetic correlations and superconducting pairing near higher-order Van Hove singularities
von: Wei, Zheng, et al.
Veröffentlicht: (2025)

The Crossover from Ordinary to Higher-Order van Hove Singularity in a Honeycomb System: A Parquet Renormalization Group Analysis
von: Lee, Yueh-Chen, et al.
Veröffentlicht: (2024)

Magnetic fluctuation and dominant superconducting pairing symmetry near the tunable Van Hove singularity
von: Kong, Xiaohan, et al.
Veröffentlicht: (2024)

Intertwined van-Hove Singularities as a Mechanism for Loop Current Order in Kagome Metals
von: Li, Heqiu, et al.
Veröffentlicht: (2023)

Quantum Oscillations Measurement of the Heavy Electron Mass near the van Hove Singularity in a Kagome Metal
von: Rosenberg, Elliott, et al.
Veröffentlicht: (2024)

Sublinear transport in Kagome metals: Interplay of Dirac cones and Van Hove singularities
von: Peshcherenko, Nikolai, et al.
Veröffentlicht: (2024)

Optimal superconductivity in twisted bilayer WSe$_2$ where the Van Hove singularity crosses half-filling
von: Zegrodnik, Michał, et al.
Veröffentlicht: (2025)

Superconductivity near two-dimensional Van Hove singularities: a determinant quantum Monte Carlo study
von: Romare, Gustav, et al.
Veröffentlicht: (2026)

Pseudogap, Fermi liquid, Van Hove singularity and maxima of the compressibility and of the Knight shift as a function of doping in the two-dimensional Hubbard model
von: Vilk, Y. M., et al.
Veröffentlicht: (2026)

Spin-orbit coupling induced Van Hove singularity in proximity to a Lifshitz transition in Sr$_4$Ru$_3$O$_{10}$
von: Marques, Carolina A., et al.
Veröffentlicht: (2023)

On the engineering of higher-order Van Hove singularities in two dimensions
von: Chandrasekaran, Anirudh, et al.
Veröffentlicht: (2023)

Origin of the Unusual Temperature Dependence of the Upper Critical Field of Kagome Superconductor CsV3Sb5: Multiple Bands or van Hove Singularities?
von: Chapai, Ramakanta, et al.
Veröffentlicht: (2024)

Imaging van Hove Singularity Heterogeneity in Overdoped Graphene
von: Blackwell, Raymond, et al.
Veröffentlicht: (2025)

Competing Lattice Instability and Magnetism on the Surface of Kagome Metals
von: Tan, Hengxin, et al.
Veröffentlicht: (2023)

Observation of Resonance of Kagome Flat Band Doublet
von: Zhang, Renjie, et al.
Veröffentlicht: (2026)

Kekulé order from diffuse nesting near higher-order Van Hove points
von: Beck, Jonas, et al.
Veröffentlicht: (2025)

Altermagnetism from coincident Van Hove singularities: application to $κ$-Cl
von: Yu, Yue, et al.
Veröffentlicht: (2024)

Van-Hove tuning of Fermi surface instabilities through compensated metallicity
von: Hohmann, Hendrik, et al.
Veröffentlicht: (2023)

Three-Band Anderson Lattice Model Reveals Co-Evolution of Topological and Magnetic Phases Driven by Electron Correlation
von: Wang, Zhong-Yi, et al.
Veröffentlicht: (2026)

Triplet superconductivity supported by an X$_9$ high-order Van Hove singularity
von: Sanjeevappa, Chethan, et al.
Veröffentlicht: (2026)

Topological and Trivial Valence-Bond Orders in Higher-Spin Kitaev Models
von: Zhang, Xing-Yu, et al.
Veröffentlicht: (2025)

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
VUFIND_SESSION	"4b47a5e42abf584addcc355555fee815"
ui	"standard"
language	"de"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1790953280.8581 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "4b47a5e42abf584addcc355555fee815" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1433}
SessionHelper	Laminas\Stdlib\ArrayObject {#1759}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"VUFIND_SESSION=4b47a5e42abf584addcc355555fee815; ui=standard; language=de"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.217.142"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"3971"
REDIRECT_URL	""" /Record/\n arxiv_https___arxiv_org_abs_2604_07806/Similar """
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/%0Aarxiv_https___arxiv_org_abs_2604_07806/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1790953280.8492
REQUEST_TIME	1790953280

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler