The Seoul Economic Daily reports speculation that the Quantum Energy Research Institute will officially announce the results of the thesis review of the international academic journal ‘APL Materials’, which is currently undergoing the registration process, at the end of this month at the comprehensive announcement.
An official from the scientific community explained, “The surest way to secure the reliability of a sample is to receive it directly from the development team. If not, as a second best solution, it can be independently produced and then verified by the development team or a third party.”
The Q-Center (The company name of Sukbae Lee/Ji-Hoon Kim) says they are going to make an announcement at the end of the month or early next month regarding the LK-99 superconductor, likely to be the results of their peer review submission to APL materials.
Seoul Economic Daily…
— Floates0x (@floates0x) August 7, 2023
The Condensed Matter Theory Center tweets out the observations that there is no quality confirmation of the original LK99 research paper. The tests on attempted replication samples have not yet shown well defined critical temperatures or zero resistance states.
Nextbigfuture notes that if this is a new type of superconductor then it could have different behaviors and we have not replicated pure and high quality samples of LK99 class materials.
There is theoretical and simulation work from top national labs that lend support to LK99 being possibly viable. There are many partial replications and some measurements consistent with superconductivity. The theory work indicates that synthesis of pure samples will likely be very hard. The original team reported only 10% of their own samples worked in any way.
Now bad: (1) no confirmation of the OP at all, 'making the material' (light yellow on the wiki) is meaningless since we have no idea what material is coming out; (2) levitation claims are often hoax; (3) well-defined T_c and true zero resistance state (or Meissner) absent so far
— Condensed Matter Theory Center (@condensed_the) August 7, 2023
Additional comments: (1)weak diamagnetism could arise from small grains of Pb/Cu/P in the sample, all of them are diamagnetic; (2)weak ferromagnetism may arise if razor blades are used to cut the material at any stage (this has happened in professional labs in other contexts)
— Condensed Matter Theory Center (@condensed_the) August 7, 2023
Type of Superconductors
The new LK99 material has superconducting pathways that might be are one-dimensional or the initial production is too impure for full three dimensional levitation and superconduction.
Proposed mechanisms for LK99 superconductivity
Partial replacement of Pb2+ ions (measuring 133 picometres) with Cu2+ ions (measuring 87 picometres) is said to cause a 0.48% reduction in volume, creating internal stress inside the material]: The internal stress is claimed to cause a heterojunction quantum well between the Pb(1) and oxygen within the phosphate ([PO4]3−) generating a superconducting quantum well (SQW).
There are proposed theories that LK-99 is a Mott or charge transfer insulator, that electron or hole doping is needed to make it (super)conducting.
Type-II Superconductor
In superconductivity, a type-II superconductor is a superconductor that exhibits an intermediate phase of mixed ordinary and superconducting properties at intermediate temperature and fields above the superconducting phases. It also features the formation of magnetic field vortices with an applied external magnetic field. This occurs above a certain critical field strength Hc1. The vortex density increases with increasing field strength. At a higher critical field Hc2, superconductivity is destroyed. Type-II superconductors do not exhibit a complete Meissner effect.
Type-II superconductors are usually made of metal alloys or complex oxide ceramics. All high temperature superconductors are type-II superconductors. While most elemental superconductors are type-I, niobium, vanadium, and technetium are elemental type-II superconductors. Boron-doped diamond and silicon are also type-II superconductors. Metal alloy superconductors can also exhibit type-II behavior (e.g. niobium-titanium, one of the most common superconductors in applied superconductivity), as well as intermetallic compounds like niobium-tin.
Other type-II examples are the cuprate-perovskite ceramic materials which have achieved the highest superconducting critical temperatures. These include La1.85Ba0.15CuO4, BSCCO, and YBCO (Yttrium-Barium-Copper-Oxide), which is famous as the first material to achieve superconductivity above the boiling point of liquid nitrogen (77 K). Due to strong vortex pinning, the cuprates are close to ideally hard superconductors.
(1) Type – I Superconductors: Low Temperature Superconductors.
(2) Type – II Superconductors: High Temperature Superconductors.
Type-1.5 superconductors are multicomponent superconductors characterized by two or more coherence lengths, at least one of which is shorter than the magnetic field penetration length and at least one of which is longer.
Unconventional Superconductors Like Graphene
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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Never proven, conclusively debunked. That is all. If you are old enough you remember the hype around the first cold fusion debacle. And the skepticism for the second cycle. Just go straight into skepticism for both cold fusion and warm superconductors. There is no need to pay attention until someone competent confirms wild claims.
So far all we see is bs. Todays debunking claims it’s just ferromagnetism.
This account has been trolling here for a while. Nothing but BS spam. May consider blocking it if possible.
Who is this anonymous floates0x sock puppet acting like an authoritative source on the worst social media platform ever? Like why be anonymous? Weird stuff.
I think Luca is back with the innuendo posts. If I recall correctly, he is an Italian with OCD and hate, who occasionally has something to add with regards to computer science…
Man, we’ve lost some good commenters over the years…. now Luca surfaces.
Super annoying this GenZ Manga PFP crap with their waifu and alter egos. Creepy confused stuff. Their music is horrible also. Go play outside, but stay off my lawn.
Yes Brian its a obvious `joke`
a number of statements like
QUOTE I will play the role of LK99, or at least part of me will. Cant wait to give you a wild, wet and superconducting nighttime UNQUOTE
Are very obviously double entendre (a word or phrase that is open to two interpretations, one of which is usually risqué or indecent)
The positive partial confirmation involved seem to produce 1 to 10 parts per million of the material having some partial levitation effect and this happens maybe 10% of the time. This is a difficult thing to make with any purity or effect. The theory suggests it is generating quantum wells and needs to replace lead in the second position with copper (or other dopant). The major labs are mostly keeping quiet except to warn people not to get overly hyped on weak evidence or to calibrate what is public. The original paper was rushed and incomplete. There is no benefit for a major lab just to rush and confirm incomplete results. They either are able to bound the work or extend the work in a meaningful way. Whatever, they do needs to be bullet proof and hold up. This will be difficult and tricky to do, unless there is a further breakthrough in understand or results. Improving the mix of dopants or other major synthesis steps to get reliable, repeatable results is needed. However, the fact that anything remotely interesting is happening at even this level of reliability is huge. It is not overall superlotto unreliable but it is roulette and Craps level and for each microgram it is lotto level to get a good piece.